Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/TestWorkbookEvaluator.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/TestWorkbookEvaluator.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- 
poi/trunk/src/testcases/org/apache/poi/ss/formula/TestWorkbookEvaluator.java 
(original)
+++ 
poi/trunk/src/testcases/org/apache/poi/ss/formula/TestWorkbookEvaluator.java 
Thu Dec 24 18:42:29 2020
@@ -17,11 +17,13 @@
 
 package org.apache.poi.ss.formula;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertSame;
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
 
 import java.io.IOException;
 
@@ -47,8 +49,8 @@ import org.apache.poi.ss.usermodel.Row;
 import org.apache.poi.ss.usermodel.Sheet;
 import org.apache.poi.ss.usermodel.Workbook;
 import org.apache.poi.ss.util.CellRangeAddress;
-import org.junit.Ignore;
-import org.junit.Test;
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
 
 /**
  * Tests {@link WorkbookEvaluator}.
@@ -194,12 +196,9 @@ public class TestWorkbookEvaluator {
         HSSFCell cell = row.createCell(0);
         cell.setCellFormula("1+IF(1,,)");
         HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
-        CellValue cv = null;
-        try {
-            cv = fe.evaluate(cell);
-        } catch (RuntimeException e) {
-            fail("Missing arg result not being handled correctly.");
-        }
+        assertDoesNotThrow(() -> fe.evaluate(cell), "Missing arg result not 
being handled correctly.");
+
+        CellValue cv = fe.evaluate(cell);
         assertEquals(CellType.NUMERIC, cv.getCellType());
         // adding blank to 1.0 gives 1.0
         assertEquals(1.0, cv.getNumberValue(), 0.0);
@@ -260,7 +259,7 @@ public class TestWorkbookEvaluator {
     public void testNamesInFormulas() throws IOException {
         Workbook wb = new HSSFWorkbook();
         Sheet sheet = wb.createSheet("Sheet1");
-        
+
         Name name1 = wb.createName();
         name1.setNameName("aConstant");
         name1.setRefersToFormula("3.14");
@@ -272,27 +271,27 @@ public class TestWorkbookEvaluator {
         Name name3 = wb.createName();
         name3.setNameName("aSet");
         name3.setRefersToFormula("Sheet1!$A$2:$A$4");
-        
+
         Name name4 = wb.createName();
         name4.setNameName("offsetFormula");
         name4.setRefersToFormula("OFFSET(Sheet1!$A$1:$A$4,2,0,2,1)");
-        
+
         Name name5 = wb.createName();
         name5.setNameName("rowFormula");
         name5.setRefersToFormula("ROW()");
-        
+
         Row row0 = sheet.createRow(0);
         Row row1 = sheet.createRow(1);
         Row row2 = sheet.createRow(2);
         Row row3 = sheet.createRow(3);
         Row row4 = sheet.createRow(4);
         Row row5 = sheet.createRow(5);
-        
+
         row0.createCell(0).setCellValue(2);
         row1.createCell(0).setCellValue(5);
         row2.createCell(0).setCellValue(3);
         row3.createCell(0).setCellValue(7);
-        
+
         row0.createCell(2).setCellFormula("aConstant");
         row1.createCell(2).setCellFormula("aFormula");
         row2.createCell(2).setCellFormula("SUM(aSet)");
@@ -307,10 +306,10 @@ public class TestWorkbookEvaluator {
         assertEquals(28.14, fe.evaluate(row3.getCell(2)).getNumberValue(), 
EPSILON);
         assertEquals(10.0, fe.evaluate(row4.getCell(2)).getNumberValue(), 
EPSILON);
         assertEquals(6.0, fe.evaluate(row5.getCell(2)).getNumberValue(), 
EPSILON);
-        
+
         wb.close();
     }
-    
+
     @Test
     public void testIgnoreMissingWorkbooks() {
         // TODO: update this test for meaningful functional behavior
@@ -336,9 +335,9 @@ public class TestWorkbookEvaluator {
         evaluator.setDebugEvaluationOutputForNextEval(false);
         assertFalse(evaluator.isDebugEvaluationOutputForNextEval());
     }
-    
+
 // Test IF-Equals Formula Evaluation (bug 58591)
-    
+
     private Workbook testIFEqualsFormulaEvaluation_setup(String formula, 
CellType a1CellType) {
         Workbook wb = new HSSFWorkbook();
         Sheet sheet = wb.createSheet("IFEquals");
@@ -347,7 +346,7 @@ public class TestWorkbookEvaluator {
         Cell B1 = row.createCell(1);
         Cell C1 = row.createCell(2);
         Cell D1 = row.createCell(3);
-        
+
         switch (a1CellType) {
             case NUMERIC:
                 A1.setCellValue(1.0);
@@ -376,38 +375,34 @@ public class TestWorkbookEvaluator {
         B1.setCellValue(2.0);
         C1.setCellValue(3.0);
         D1.setCellFormula(formula);
-        
+
         return wb;
     }
-    
+
     private void testIFEqualsFormulaEvaluation_teardown(Workbook wb) {
-        try {
-            wb.close();
-        } catch (final IOException e) {
-            fail("Unable to close workbook");
-        }
+        assertDoesNotThrow(wb::close, "Unable to close workbook");
     }
-    
-    
-    
+
+
+
     private void testIFEqualsFormulaEvaluation_evaluate(
         String formula, CellType cellType, String expectedFormula, double 
expectedResult) {
         Workbook wb = testIFEqualsFormulaEvaluation_setup(formula, cellType);
         Cell D1 = wb.getSheet("IFEquals").getRow(0).getCell(3);
-        
+
         FormulaEvaluator eval = 
wb.getCreationHelper().createFormulaEvaluator();
         CellValue result = eval.evaluate(D1);
-        
+
         // Call should not modify the contents
         assertEquals(CellType.FORMULA, D1.getCellType());
         assertEquals(expectedFormula, D1.getCellFormula());
-        
+
         assertEquals(CellType.NUMERIC, result.getCellType());
         assertEquals(expectedResult, result.getNumberValue(), EPSILON);
-        
+
         testIFEqualsFormulaEvaluation_teardown(wb);
     }
-    
+
     private void testIFEqualsFormulaEvaluation_eval(
             final String formula, final CellType cellType, final String 
expectedFormula, final double expectedValue) {
         testIFEqualsFormulaEvaluation_evaluate(formula, cellType, 
expectedFormula, expectedValue);
@@ -416,7 +411,7 @@ public class TestWorkbookEvaluator {
         testIFEqualsFormulaEvaluation_evaluateAll(formula, cellType, 
expectedFormula, expectedValue);
         testIFEqualsFormulaEvaluation_evaluateAllFormulaCells(formula, 
cellType, expectedFormula, expectedValue);
     }
-    
+
     @Test
     public void testIFEqualsFormulaEvaluation_NumericLiteral() {
         final String formula = "IF(A1=1, 2, 3)";
@@ -425,7 +420,7 @@ public class TestWorkbookEvaluator {
         final double expectedValue = 2.0;
         testIFEqualsFormulaEvaluation_eval(formula, cellType, expectedFormula, 
expectedValue);
     }
-    
+
     @Test
     public void testIFEqualsFormulaEvaluation_Numeric() {
         final String formula = "IF(A1=1, B1, C1)";
@@ -434,7 +429,7 @@ public class TestWorkbookEvaluator {
         final double expectedValue = 2.0;
         testIFEqualsFormulaEvaluation_eval(formula, cellType, expectedFormula, 
expectedValue);
     }
-    
+
     @Test
     public void testIFEqualsFormulaEvaluation_NumericCoerceToString() {
         final String formula = "IF(A1&\"\"=\"1\", B1, C1)";
@@ -443,7 +438,7 @@ public class TestWorkbookEvaluator {
         final double expectedValue = 2.0;
         testIFEqualsFormulaEvaluation_eval(formula, cellType, expectedFormula, 
expectedValue);
     }
-    
+
     @Test
     public void testIFEqualsFormulaEvaluation_String() {
         final String formula = "IF(A1=1, B1, C1)";
@@ -452,7 +447,7 @@ public class TestWorkbookEvaluator {
         final double expectedValue = 3.0;
         testIFEqualsFormulaEvaluation_eval(formula, cellType, expectedFormula, 
expectedValue);
     }
-    
+
     @Test
     public void testIFEqualsFormulaEvaluation_StringCompareToString() {
         final String formula = "IF(A1=\"1\", B1, C1)";
@@ -461,7 +456,7 @@ public class TestWorkbookEvaluator {
         final double expectedValue = 2.0;
         testIFEqualsFormulaEvaluation_eval(formula, cellType, expectedFormula, 
expectedValue);
     }
-    
+
     @Test
     public void testIFEqualsFormulaEvaluation_StringCoerceToNumeric() {
         final String formula = "IF(A1+0=1, B1, C1)";
@@ -470,8 +465,8 @@ public class TestWorkbookEvaluator {
         final double expectedValue = 2.0;
         testIFEqualsFormulaEvaluation_eval(formula, cellType, expectedFormula, 
expectedValue);
     }
-    
-    @Ignore("Bug 58591: this test currently fails")
+
+    @Disabled("Bug 58591: this test currently fails")
     @Test
     public void testIFEqualsFormulaEvaluation_Boolean() {
         final String formula = "IF(A1=1, B1, C1)";
@@ -480,8 +475,8 @@ public class TestWorkbookEvaluator {
         final double expectedValue = 2.0;
         testIFEqualsFormulaEvaluation_eval(formula, cellType, expectedFormula, 
expectedValue);
     }
-    
-    @Ignore("Bug 58591: this test currently fails")
+
+    @Disabled("Bug 58591: this test currently fails")
     @Test
     public void testIFEqualsFormulaEvaluation_BooleanSimple() {
         final String formula = "3-(A1=1)";
@@ -490,7 +485,7 @@ public class TestWorkbookEvaluator {
         final double expectedValue = 2.0;
         testIFEqualsFormulaEvaluation_eval(formula, cellType, expectedFormula, 
expectedValue);
     }
-    
+
     @Test
     public void testIFEqualsFormulaEvaluation_Formula() {
         final String formula = "IF(A1=1, B1, C1)";
@@ -499,7 +494,7 @@ public class TestWorkbookEvaluator {
         final double expectedValue = 2.0;
         testIFEqualsFormulaEvaluation_eval(formula, cellType, expectedFormula, 
expectedValue);
     }
-    
+
     @Test
     public void testIFEqualsFormulaEvaluation_Blank() {
         final String formula = "IF(A1=1, B1, C1)";
@@ -508,7 +503,7 @@ public class TestWorkbookEvaluator {
         final double expectedValue = 3.0;
         testIFEqualsFormulaEvaluation_eval(formula, cellType, expectedFormula, 
expectedValue);
     }
-    
+
     @Test
     public void testIFEqualsFormulaEvaluation_BlankCompareToZero() {
         final String formula = "IF(A1=0, B1, C1)";
@@ -517,8 +512,8 @@ public class TestWorkbookEvaluator {
         final double expectedValue = 2.0;
         testIFEqualsFormulaEvaluation_eval(formula, cellType, expectedFormula, 
expectedValue);
     }
-    
-    @Ignore("Bug 58591: this test currently fails")
+
+    @Disabled("Bug 58591: this test currently fails")
     @Test
     public void testIFEqualsFormulaEvaluation_BlankInverted() {
         final String formula = "IF(NOT(A1)=1, B1, C1)";
@@ -527,8 +522,8 @@ public class TestWorkbookEvaluator {
         final double expectedValue = 2.0;
         testIFEqualsFormulaEvaluation_eval(formula, cellType, expectedFormula, 
expectedValue);
     }
-    
-    @Ignore("Bug 58591: this test currently fails")
+
+    @Disabled("Bug 58591: this test currently fails")
     @Test
     public void testIFEqualsFormulaEvaluation_BlankInvertedSimple() {
         final String formula = "3-(NOT(A1)=1)";
@@ -537,81 +532,77 @@ public class TestWorkbookEvaluator {
         final double expectedValue = 2.0;
         testIFEqualsFormulaEvaluation_eval(formula, cellType, expectedFormula, 
expectedValue);
     }
-    
-    
+
+
     private void testIFEqualsFormulaEvaluation_evaluateFormulaCell(
             String formula, CellType cellType, String expectedFormula, double 
expectedResult) {
         Workbook wb = testIFEqualsFormulaEvaluation_setup(formula, cellType);
         Cell D1 = wb.getSheet("IFEquals").getRow(0).getCell(3);
-        
+
         FormulaEvaluator eval = 
wb.getCreationHelper().createFormulaEvaluator();
         CellType resultCellType = eval.evaluateFormulaCell(D1);
-        
+
         // Call should modify the contents, but leave the formula intact
         assertEquals(CellType.FORMULA, D1.getCellType());
         assertEquals(expectedFormula, D1.getCellFormula());
         assertEquals(CellType.NUMERIC, resultCellType);
         assertEquals(CellType.NUMERIC, D1.getCachedFormulaResultType());
         assertEquals(expectedResult, D1.getNumericCellValue(), EPSILON);
-        
+
         testIFEqualsFormulaEvaluation_teardown(wb);
     }
-    
+
     private void testIFEqualsFormulaEvaluation_evaluateInCell(
             String formula, CellType cellType, double expectedResult) {
         Workbook wb = testIFEqualsFormulaEvaluation_setup(formula, cellType);
         Cell D1 = wb.getSheet("IFEquals").getRow(0).getCell(3);
-        
+
         FormulaEvaluator eval = 
wb.getCreationHelper().createFormulaEvaluator();
         Cell result = eval.evaluateInCell(D1);
-        
+
         // Call should modify the contents and replace the formula with the 
result
-        assertSame(D1, result); // returns the same cell that was provided as 
an argument so that calls can be chained.
-        try {
-            D1.getCellFormula();
-            fail("cell formula should be overwritten with formula result");
-        } catch (final IllegalStateException expected) {
-            // expected here
-        }
+        // returns the same cell that was provided as an argument so that 
calls can be chained.
+        assertSame(D1, result);
+        assertThrows(IllegalStateException.class, D1::getCellFormula, "cell 
formula should be overwritten with formula result");
         assertEquals(CellType.NUMERIC, D1.getCellType());
         assertEquals(expectedResult, D1.getNumericCellValue(), EPSILON);
-        
+
         testIFEqualsFormulaEvaluation_teardown(wb);
     }
-    
+
     private void testIFEqualsFormulaEvaluation_evaluateAll(
             String formula, CellType cellType, String expectedFormula, double 
expectedResult) {
         Workbook wb = testIFEqualsFormulaEvaluation_setup(formula, cellType);
         Cell D1 = wb.getSheet("IFEquals").getRow(0).getCell(3);
-        
+
         FormulaEvaluator eval = 
wb.getCreationHelper().createFormulaEvaluator();
         eval.evaluateAll();
-        
+
         // Call should modify the contents
         assertEquals(CellType.FORMULA, D1.getCellType());
         assertEquals(expectedFormula, D1.getCellFormula());
-        
+
         assertEquals(CellType.NUMERIC, D1.getCachedFormulaResultType());
         assertEquals(expectedResult, D1.getNumericCellValue(), EPSILON);
-        
+
         testIFEqualsFormulaEvaluation_teardown(wb);
     }
-    
+
     private void testIFEqualsFormulaEvaluation_evaluateAllFormulaCells(
             String formula, CellType cellType, String expectedFormula, double 
expectedResult) {
         Workbook wb = testIFEqualsFormulaEvaluation_setup(formula, cellType);
         Cell D1 = wb.getSheet("IFEquals").getRow(0).getCell(3);
-        
+
         HSSFFormulaEvaluator.evaluateAllFormulaCells(wb);
-        
+
         // Call should modify the contents
         assertEquals(CellType.FORMULA, D1.getCellType());
         // whitespace gets deleted because formula is parsed and re-rendered
         assertEquals(expectedFormula, D1.getCellFormula());
-        
+
         assertEquals(CellType.NUMERIC, D1.getCachedFormulaResultType());
         assertEquals(expectedResult, D1.getNumericCellValue(), EPSILON);
-        
+
         testIFEqualsFormulaEvaluation_teardown(wb);
     }
 

Modified: poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestIfError.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestIfError.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestIfError.java 
(original)
+++ poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestIfError.java Thu 
Dec 24 18:42:29 2020
@@ -16,7 +16,7 @@
 ==================================================================== */
 package org.apache.poi.ss.formula.atp;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.io.IOException;
 
@@ -28,7 +28,7 @@ import org.apache.poi.ss.usermodel.Row;
 import org.apache.poi.ss.usermodel.Sheet;
 import org.apache.poi.ss.usermodel.Workbook;
 import org.apache.poi.ss.util.CellReference;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Testcase for 'Analysis Toolpak' function IFERROR()
@@ -79,21 +79,20 @@ public class TestIfError {
 
             FormulaEvaluator evaluator = 
wb.getCreationHelper().createFormulaEvaluator();
 
-            assertEquals("Checks that the cell is numeric",
-                         CellType.NUMERIC, 
evaluator.evaluate(cell1).getCellType());
-            assertEquals("Divides 210 by 35 and returns 6.0",
-                         6.0, evaluator.evaluate(cell1).getNumberValue(), 
accuracy);
-
-
-            assertEquals("Checks that the cell is numeric",
-                         CellType.STRING, 
evaluator.evaluate(cell2).getCellType());
-            assertEquals("Rounds -10 to a nearest multiple of -3 (-9)",
-                         "Error in calculation", 
evaluator.evaluate(cell2).getStringValue());
-
-            assertEquals("Check that C1 returns string",
-                         CellType.STRING, 
evaluator.evaluate(cell3).getCellType());
-            assertEquals("Check that C1 returns string \"error\"",
-                         "error", evaluator.evaluate(cell3).getStringValue());
+            assertEquals(CellType.NUMERIC, 
evaluator.evaluate(cell1).getCellType(),
+                         "Checks that the cell is numeric");
+            assertEquals(6.0, evaluator.evaluate(cell1).getNumberValue(), 
accuracy,
+                         "Divides 210 by 35 and returns 6.0");
+
+            assertEquals(CellType.STRING, 
evaluator.evaluate(cell2).getCellType(),
+                         "Checks that the cell is numeric");
+            assertEquals("Error in calculation", 
evaluator.evaluate(cell2).getStringValue(),
+                         "Rounds -10 to a nearest multiple of -3 (-9)");
+
+            assertEquals(CellType.STRING, 
evaluator.evaluate(cell3).getCellType(),
+                         "Check that C1 returns string");
+            assertEquals("error", evaluator.evaluate(cell3).getStringValue(),
+                         "Check that C1 returns string \"error\"");
         }
     }
 }

Modified: poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestMRound.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestMRound.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestMRound.java 
(original)
+++ poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestMRound.java Thu 
Dec 24 18:42:29 2020
@@ -16,7 +16,7 @@
 ==================================================================== */
 package org.apache.poi.ss.formula.atp;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import org.apache.poi.hssf.usermodel.HSSFWorkbook;
 import org.apache.poi.ss.formula.eval.ErrorEval;
@@ -24,7 +24,7 @@ import org.apache.poi.ss.usermodel.Cell;
 import org.apache.poi.ss.usermodel.FormulaEvaluator;
 import org.apache.poi.ss.usermodel.Sheet;
 import org.apache.poi.ss.usermodel.Workbook;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Testcase for 'Analysis Toolpak' function MROUND()
@@ -56,19 +56,19 @@ public class TestMRound {
 
         FormulaEvaluator evaluator = 
wb.getCreationHelper().createFormulaEvaluator();
 
-        assertEquals("Rounds 10 to a nearest multiple of 3 (9)",
-                9.0, evaluator.evaluate(cell1).getNumberValue(), accuracy);
+        assertEquals(9.0, evaluator.evaluate(cell1).getNumberValue(), accuracy,
+                     "Rounds 10 to a nearest multiple of 3 (9)");
 
-        assertEquals("Rounds -10 to a nearest multiple of -3 (-9)",
-                -9.0, evaluator.evaluate(cell2).getNumberValue(), accuracy);
+        assertEquals(-9.0, evaluator.evaluate(cell2).getNumberValue(), 
accuracy,
+                     "Rounds -10 to a nearest multiple of -3 (-9)");
 
-        assertEquals("Rounds 1.3 to a nearest multiple of 0.2 (1.4)",
-                1.4, evaluator.evaluate(cell3).getNumberValue(), accuracy);
+        assertEquals(1.4, evaluator.evaluate(cell3).getNumberValue(), accuracy,
+                     "Rounds 1.3 to a nearest multiple of 0.2 (1.4)");
 
-        assertEquals("Returns an error, because -2 and 5 have different signs 
(#NUM!)",
-                ErrorEval.NUM_ERROR.getErrorCode(), 
evaluator.evaluate(cell4).getErrorValue());
+        assertEquals(ErrorEval.NUM_ERROR.getErrorCode(), 
evaluator.evaluate(cell4).getErrorValue(),
+                     "Returns an error, because -2 and 5 have different signs 
(#NUM!)");
 
-        assertEquals("Returns 0 because the multiple is 0",
-                0.0, evaluator.evaluate(cell5).getNumberValue(), 0);
+        assertEquals(0.0, evaluator.evaluate(cell5).getNumberValue(), 0,
+                     "Returns 0 because the multiple is 0");
     }
 }

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestNetworkdaysFunction.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestNetworkdaysFunction.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- 
poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestNetworkdaysFunction.java
 (original)
+++ 
poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestNetworkdaysFunction.java
 Thu Dec 24 18:42:29 2020
@@ -19,7 +19,7 @@ package org.apache.poi.ss.formula.atp;
 
 import static org.apache.poi.ss.formula.eval.ErrorEval.NAME_INVALID;
 import static org.apache.poi.ss.formula.eval.ErrorEval.VALUE_INVALID;
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -31,7 +31,7 @@ import org.apache.poi.ss.formula.eval.Ar
 import org.apache.poi.ss.formula.eval.NumericValueEval;
 import org.apache.poi.ss.formula.eval.StringEval;
 import org.apache.poi.ss.formula.eval.ValueEval;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class TestNetworkdaysFunction {
 

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestPercentile.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestPercentile.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestPercentile.java 
(original)
+++ poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestPercentile.java 
Thu Dec 24 18:42:29 2020
@@ -16,7 +16,7 @@
 ==================================================================== */
 package org.apache.poi.ss.formula.atp;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import org.apache.poi.ss.formula.eval.AreaEval;
 import org.apache.poi.ss.formula.eval.BlankEval;
@@ -26,7 +26,7 @@ import org.apache.poi.ss.formula.eval.Nu
 import org.apache.poi.ss.formula.eval.ValueEval;
 import org.apache.poi.ss.formula.functions.AggregateFunction;
 import org.apache.poi.ss.formula.functions.EvalFactory;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Testcase for Excel function PERCENTILE()

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestRandBetween.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestRandBetween.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestRandBetween.java 
(original)
+++ poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestRandBetween.java 
Thu Dec 24 18:42:29 2020
@@ -16,8 +16,8 @@
 ==================================================================== */
 package org.apache.poi.ss.formula.atp;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import org.apache.poi.hssf.HSSFTestDataSamples;
 import org.apache.poi.ss.formula.eval.ErrorEval;
@@ -27,23 +27,22 @@ import org.apache.poi.ss.usermodel.Formu
 import org.apache.poi.ss.usermodel.Row;
 import org.apache.poi.ss.usermodel.Sheet;
 import org.apache.poi.ss.usermodel.Workbook;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 /**
  * Testcase for 'Analysis Toolpak' function RANDBETWEEN()
  */
 public class TestRandBetween {
 
-       private Workbook wb;
        private FormulaEvaluator evaluator;
        private Cell bottomValueCell;
        private Cell topValueCell;
        private Cell formulaCell;
 
-       @Before
+       @BeforeEach
        public void setUp() throws Exception {
-               wb = 
HSSFTestDataSamples.openSampleWorkbook("TestRandBetween.xls");
+               Workbook wb = 
HSSFTestDataSamples.openSampleWorkbook("TestRandBetween.xls");
                evaluator = wb.getCreationHelper().createFormulaEvaluator();
 
                Sheet sheet = wb.createSheet("RandBetweenSheet");
@@ -76,8 +75,8 @@ public class TestRandBetween {
             formulaCell.setCellFormula("RANDBETWEEN(0,9999999999)");
             evaluator.evaluateFormulaCell(formulaCell);
             double value = formulaCell.getNumericCellValue();
-            assertTrue("rand is greater than or equal to lowerbound", value >= 
0.0);
-            assertTrue("rand is less than or equal to upperbound", value <= 
9999999999.0);
+            assertTrue(value >= 0.0, "rand is greater than or equal to 
lowerbound");
+            assertTrue(value <= 9999999999.0, "rand is less than or equal to 
upperbound");
         }
        }
 

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestWorkdayCalculator.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestWorkdayCalculator.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- 
poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestWorkdayCalculator.java
 (original)
+++ 
poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestWorkdayCalculator.java
 Thu Dec 24 18:42:29 2020
@@ -18,14 +18,14 @@
 package org.apache.poi.ss.formula.atp;
 
 import static java.util.Calendar.SATURDAY;
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.util.Calendar;
 import java.util.Date;
 
 import org.apache.poi.ss.usermodel.DateUtil;
 import org.apache.poi.util.LocaleUtil;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class TestWorkdayCalculator {
 
@@ -139,8 +139,7 @@ public class TestWorkdayCalculator {
         final double holiday1 = DateUtil.getExcelDate(d(2016, 12, 25));
         final double holiday2 = DateUtil.getExcelDate(d(2016, 12, 26));
         int count = 
WorkdayCalculator.instance.calculateNonWeekendHolidays(start, end, new 
double[]{holiday1, holiday2});
-        assertEquals("Expected 1 non-weekend-holiday for " + start + " to " + 
end + " and " + holiday1 + " and " + holiday2,
-                1, count);
+        assertEquals(1, count, "Expected 1 non-weekend-holiday for " + start + 
" to " + end + " and " + holiday1 + " and " + holiday2);
     }
 
     @Test
@@ -150,7 +149,6 @@ public class TestWorkdayCalculator {
         final double holiday1 = DateUtil.getExcelDate(d(2016, 12, 25));
         final double holiday2 = DateUtil.getExcelDate(d(2016, 12, 26));
         int count = 
WorkdayCalculator.instance.calculateNonWeekendHolidays(start, end, new 
double[]{holiday1, holiday2});
-        assertEquals("Expected 1 non-weekend-holiday for " + start + " to " + 
end + " and " + holiday1 + " and " + holiday2,
-                1, count);
+        assertEquals(1, count, "Expected 1 non-weekend-holiday for " + start + 
" to " + end + " and " + holiday1 + " and " + holiday2);
     }
 }

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestWorkdayFunction.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestWorkdayFunction.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- 
poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestWorkdayFunction.java 
(original)
+++ 
poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestWorkdayFunction.java 
Thu Dec 24 18:42:29 2020
@@ -20,7 +20,7 @@ package org.apache.poi.ss.formula.atp;
 
 
 import static org.apache.poi.ss.formula.eval.ErrorEval.VALUE_INVALID;
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.util.ArrayList;
 import java.util.Calendar;
@@ -36,7 +36,7 @@ import org.apache.poi.ss.formula.eval.St
 import org.apache.poi.ss.formula.eval.ValueEval;
 import org.apache.poi.ss.usermodel.DateUtil;
 import org.apache.poi.util.LocaleUtil;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class TestWorkdayFunction {
 
@@ -89,7 +89,7 @@ public class TestWorkdayFunction {
         ValueEval[] ve = {new StringEval("2013/09/30"), new NumberEval(-1)};
                double numberValue = ((NumberEval) 
WorkdayFunction.instance.evaluate(ve, EC)).getNumberValue();
                assertEquals(41544.0, numberValue, 0);
-               
+
                Date actDate = DateUtil.getJavaDate(numberValue);
         assertEquals(expDate, actDate);
     }
@@ -140,7 +140,7 @@ public class TestWorkdayFunction {
 
         ValueEval[] ve = {new StringEval(STARTING_DATE), new 
NumberEval(151.99999)};
         double numberValue = ((NumberEval) 
WorkdayFunction.instance.evaluate(ve, EC)).getNumberValue();
-        
+
         Date actDate = DateUtil.getJavaDate(numberValue);
         assertEquals(expDate, actDate);
     }
@@ -152,7 +152,7 @@ public class TestWorkdayFunction {
 
         ValueEval[] ve = {new StringEval(STARTING_DATE), new NumberEval(-5), 
new StringEval(RETROATIVE_HOLIDAY)};
         double numberValue = ((NumberEval) 
WorkdayFunction.instance.evaluate(ve, EC)).getNumberValue();
-        
+
         Date actDate = DateUtil.getJavaDate(numberValue);
         assertEquals(expDate, actDate);
     }
@@ -166,7 +166,7 @@ public class TestWorkdayFunction {
                 new StringEval(STARTING_DATE), new NumberEval(151),
                 new MockAreaEval(FIRST_HOLIDAY, SECOND_HOLIDAY, 
THIRD_HOLIDAY)};
         double numberValue = ((NumberEval) 
WorkdayFunction.instance.evaluate(ve, EC)).getNumberValue();
-        
+
         Date actDate = DateUtil.getJavaDate(numberValue);
         assertEquals(expDate, actDate);
     }

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestYearFracCalculator.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestYearFracCalculator.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- 
poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestYearFracCalculator.java
 (original)
+++ 
poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestYearFracCalculator.java
 Thu Dec 24 18:42:29 2020
@@ -17,14 +17,14 @@
 
 package org.apache.poi.ss.formula.atp;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.util.Calendar;
 
 import org.apache.poi.ss.formula.eval.EvaluationException;
 import org.apache.poi.ss.usermodel.DateUtil;
 import org.apache.poi.util.LocaleUtil;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Specific test cases for YearFracCalculator
@@ -56,7 +56,7 @@ public final class TestYearFracCalculato
                        System.out.println(startDate + " " + endDate + " off by 
" + hours + " hours");
                        assertEquals(expectedValue, actualValue, 0.000000001);
                }
-               
+
        }
 
        private static double md(int year, int month, int day) {

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestYearFracCalculatorFromSpreadsheet.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestYearFracCalculatorFromSpreadsheet.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- 
poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestYearFracCalculatorFromSpreadsheet.java
 (original)
+++ 
poi/trunk/src/testcases/org/apache/poi/ss/formula/atp/TestYearFracCalculatorFromSpreadsheet.java
 Thu Dec 24 18:42:29 2020
@@ -17,9 +17,9 @@
 
 package org.apache.poi.ss.formula.atp;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.Calendar;
 import java.util.Iterator;
@@ -35,13 +35,13 @@ import org.apache.poi.ss.usermodel.CellT
 import org.apache.poi.ss.usermodel.DateUtil;
 import org.apache.poi.ss.usermodel.Row;
 import org.apache.poi.util.LocaleUtil;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Tests YearFracCalculator using test-cases listed in a sample spreadsheet
  */
 public final class TestYearFracCalculatorFromSpreadsheet {
-       
+
        private static final class SS {
 
                public static final int BASIS_COLUMN = 1; // "B"
@@ -53,7 +53,7 @@ public final class TestYearFracCalculato
 
        @Test
        public void testAll() throws Exception {
-               
+
                HSSFWorkbook wb = 
HSSFTestDataSamples.openSampleWorkbook("yearfracExamples.xls");
                HSSFSheet sheet = wb.getSheetAt(0);
                HSSFFormulaEvaluator formulaEvaluator = new 
HSSFFormulaEvaluator(wb);
@@ -61,7 +61,7 @@ public final class TestYearFracCalculato
                Iterator<Row> rowIterator = sheet.rowIterator();
                while(rowIterator.hasNext()) {
                        HSSFRow row = (HSSFRow) rowIterator.next();
-                       
+
                        HSSFCell cell = row.getCell(SS.YEARFRAC_FORMULA_COLUMN);
                        if (cell == null || cell.getCellType() != 
CellType.FORMULA) {
                                continue;
@@ -70,26 +70,26 @@ public final class TestYearFracCalculato
             nSuccess++;
                }
 
-               assertTrue("No test sample cases found", nSuccess > 0);
+               assertTrue(nSuccess > 0, "No test sample cases found");
                wb.close();
        }
-       
+
        private void processRow(HSSFRow row, HSSFCell cell, 
HSSFFormulaEvaluator formulaEvaluator)
        throws EvaluationException {
-               
+
                double startDate = makeDate(row, SS.START_YEAR_COLUMN);
                double endDate = makeDate(row, SS.END_YEAR_COLUMN);
-               
+
                int basis = getIntCell(row, SS.BASIS_COLUMN);
-               
+
                double expectedValue = getDoubleCell(row, 
SS.EXPECTED_RESULT_COLUMN);
-               
+
                double actualValue = YearFracCalculator.calculate(startDate, 
endDate, basis);
 
                String loc = " - row " + (row.getRowNum()+1);
-               assertEquals("Direct calculate failed"+loc, expectedValue, 
actualValue, 0);
+               assertEquals(expectedValue, actualValue, 0, "Direct calculate 
failed"+loc);
                actualValue = formulaEvaluator.evaluate(cell).getNumberValue();
-               assertEquals("Formula evaluate failed"+loc, expectedValue, 
actualValue, 0);
+               assertEquals(expectedValue, actualValue, 0, "Formula evaluate 
failed"+loc);
        }
 
        private static double makeDate(HSSFRow row, int yearColumn) {
@@ -103,13 +103,13 @@ public final class TestYearFracCalculato
        private static int getIntCell(HSSFRow row, int colIx) {
                double dVal = getDoubleCell(row, colIx);
                String msg = "Non integer value (" + dVal + ") cell found at 
column " + (char)('A' + colIx);
-               assertEquals(msg, Math.floor(dVal), dVal, 0);
+               assertEquals(Math.floor(dVal), dVal, 0, msg);
                return (int)dVal;
        }
 
        private static double getDoubleCell(HSSFRow row, int colIx) {
                HSSFCell cell = row.getCell(colIx);
-               assertNotNull("No cell found at column " + colIx, cell);
+               assertNotNull(cell, "No cell found at column " + colIx);
         return cell.getNumericCellValue();
        }
 }

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/constant/TestConstantValueParser.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/constant/TestConstantValueParser.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- 
poi/trunk/src/testcases/org/apache/poi/ss/formula/constant/TestConstantValueParser.java
 (original)
+++ 
poi/trunk/src/testcases/org/apache/poi/ss/formula/constant/TestConstantValueParser.java
 Thu Dec 24 18:42:29 2020
@@ -18,17 +18,16 @@
 package org.apache.poi.ss.formula.constant;
 
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.fail;
-
-import java.util.Arrays;
+import static org.junit.jupiter.api.Assertions.assertArrayEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import org.apache.poi.hssf.record.TestcaseRecordInputStream;
 import org.apache.poi.ss.usermodel.FormulaError;
 import org.apache.poi.util.HexRead;
 import org.apache.poi.util.LittleEndianByteArrayOutputStream;
 import org.apache.poi.util.LittleEndianInput;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public final class TestConstantValueParser {
        private static final Object[] SAMPLE_VALUES = {
@@ -58,9 +57,7 @@ public final class TestConstantValuePars
 
                ConstantValueParser.encode(new 
LittleEndianByteArrayOutputStream(data, 0), SAMPLE_VALUES);
 
-               if (!Arrays.equals(data, SAMPLE_ENCODING)) {
-                       fail("Encoding differs");
-               }
+               assertArrayEquals(SAMPLE_ENCODING, data, "Encoding differs");
        }
 
        @Test
@@ -69,9 +66,7 @@ public final class TestConstantValuePars
 
                Object[] values = ConstantValueParser.parse(in, 4);
                for (int i = 0; i < values.length; i++) {
-                       if(!isEqual(SAMPLE_VALUES[i], values[i])) {
-                               fail("Decoded result differs");
-                       }
+                       assertTrue(isEqual(SAMPLE_VALUES[i], values[i]), 
"Decoded result differs");
                }
        }
        private static boolean isEqual(Object a, Object b) {

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/BaseTestCircularReferences.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/BaseTestCircularReferences.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/BaseTestCircularReferences.java
 (original)
+++ 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/BaseTestCircularReferences.java
 Thu Dec 24 18:42:29 2020
@@ -16,11 +16,11 @@
 ==================================================================== */
 package org.apache.poi.ss.formula.eval;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertSame;
-import static org.junit.Assert.fail;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.fail;
 
 import java.io.IOException;
 
@@ -32,7 +32,7 @@ import org.apache.poi.ss.usermodel.Formu
 import org.apache.poi.ss.usermodel.Row;
 import org.apache.poi.ss.usermodel.Sheet;
 import org.apache.poi.ss.usermodel.Workbook;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Common superclass for testing cases of circular references

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestAreaEval.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestAreaEval.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestAreaEval.java 
(original)
+++ poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestAreaEval.java 
Thu Dec 24 18:42:29 2020
@@ -18,14 +18,14 @@
 package org.apache.poi.ss.formula.eval;
 
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
 
 import org.apache.poi.ss.SpreadsheetVersion;
 import org.apache.poi.ss.formula.functions.EvalFactory;
 import org.apache.poi.ss.formula.ptg.AreaPtg;
 import org.apache.poi.ss.util.AreaReference;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Tests for <tt>AreaEval</tt>
@@ -46,7 +46,7 @@ public final class TestAreaEval {
                                new NumberEval(6),
                };
                AreaEval ae = EvalFactory.createAreaEval(ptg, values);
-               assertNotEquals("Identified bug 44950 a", one, 
ae.getAbsoluteValue(1, 2));
+               assertNotEquals(one, ae.getAbsoluteValue(1, 2), "Identified bug 
44950 a");
                confirm(1, ae, 1, 1);
                confirm(2, ae, 1, 2);
                confirm(3, ae, 1, 3);

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestDivideEval.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestDivideEval.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestDivideEval.java 
(original)
+++ poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestDivideEval.java 
Thu Dec 24 18:42:29 2020
@@ -17,11 +17,11 @@
 
 package org.apache.poi.ss.formula.eval;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import org.apache.poi.ss.formula.functions.EvalFactory;
 import org.apache.poi.ss.formula.functions.NumericFunctionInvoker;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Test for divide operator evaluator.

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestEqualEval.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestEqualEval.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestEqualEval.java 
(original)
+++ poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestEqualEval.java 
Thu Dec 24 18:42:29 2020
@@ -17,13 +17,13 @@
 
 package org.apache.poi.ss.formula.eval;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotEquals;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import org.apache.poi.ss.formula.functions.EvalFactory;
 import org.apache.poi.ss.formula.functions.Function;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Test for EqualEval
@@ -42,7 +42,7 @@ public final class TestEqualEval {
                        BoolEval.FALSE,
                };
                ValueEval result = evaluate(EvalInstances.Equal, args, 10, 10);
-               assertNotEquals("Identified bug in evaluation of 1x1 area", 
ErrorEval.VALUE_INVALID, result);
+               assertNotEquals(ErrorEval.VALUE_INVALID, result, "Identified 
bug in evaluation of 1x1 area");
                assertTrue(result instanceof BoolEval);
                assertTrue(((BoolEval)result).getBooleanValue());
        }
@@ -60,7 +60,7 @@ public final class TestEqualEval {
                ValueEval result = evaluate(EvalInstances.Equal, args, 10, 10);
                assertEquals(BoolEval.class, result.getClass());
                BoolEval be = (BoolEval) result;
-               assertTrue("Identified bug blank/empty string equality", 
be.getBooleanValue());
+               assertTrue(be.getBooleanValue(), "Identified bug blank/empty 
string equality");
        }
 
        /**
@@ -133,11 +133,11 @@ public final class TestEqualEval {
        public void testZeroEquality_bug47198() {
                NumberEval zero = new NumberEval(0.0);
                NumberEval mZero = (NumberEval) 
evaluate(UnaryMinusEval.instance, new ValueEval[] { zero, }, 0, 0);
-               assertNotEquals("Identified bug 47198: unary minus should 
convert -0.0 to 0.0",
-                                               0x8000000000000000L, 
Double.doubleToLongBits(mZero.getNumberValue()));
+               assertNotEquals(0x8000000000000000L, 
Double.doubleToLongBits(mZero.getNumberValue()),
+                                               "Identified bug 47198: unary 
minus should convert -0.0 to 0.0");
                ValueEval[] args = { zero, mZero, };
                BoolEval result = (BoolEval) evaluate(EvalInstances.Equal, 
args, 0, 0);
-               assertTrue("Identified bug 47198: -0.0 != 0.0", 
result.getBooleanValue());
+               assertTrue(result.getBooleanValue(), "Identified bug 47198: 
-0.0 != 0.0");
        }
 
        @Test
@@ -151,7 +151,7 @@ public final class TestEqualEval {
 
                ValueEval[] args = { a, b, };
                BoolEval result = (BoolEval) evaluate(EvalInstances.Equal, 
args, 0, 0);
-               assertTrue("Identified bug 47598: 1+1.0028-0.9973 != 1.0055", 
result.getBooleanValue());
+               assertTrue(result.getBooleanValue(), "Identified bug 47598: 
1+1.0028-0.9973 != 1.0055");
        }
 
        private static ValueEval evaluate(Function oper, ValueEval[] args, int 
srcRowIx, int srcColIx) {

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestExternalFunction.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestExternalFunction.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestExternalFunction.java
 (original)
+++ 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestExternalFunction.java
 Thu Dec 24 18:42:29 2020
@@ -17,7 +17,7 @@
 
 package org.apache.poi.ss.formula.eval;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.io.IOException;
 
@@ -32,7 +32,7 @@ import org.apache.poi.ss.formula.functio
 import org.apache.poi.ss.formula.udf.AggregatingUDFFinder;
 import org.apache.poi.ss.formula.udf.DefaultUDFFinder;
 import org.apache.poi.ss.formula.udf.UDFFinder;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public final class TestExternalFunction {
 

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestFormulaBugs.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestFormulaBugs.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestFormulaBugs.java 
(original)
+++ poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestFormulaBugs.java 
Thu Dec 24 18:42:29 2020
@@ -17,17 +17,23 @@
 
 package org.apache.poi.ss.formula.eval;
 
-import org.apache.poi.hssf.HSSFTestDataSamples;
-import org.apache.poi.hssf.usermodel.*;
-import org.apache.poi.ss.usermodel.*;
-import org.junit.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
 
 import java.io.IOException;
 import java.io.InputStream;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
+import org.apache.poi.hssf.HSSFTestDataSamples;
+import org.apache.poi.hssf.usermodel.HSSFWorkbook;
+import org.apache.poi.ss.usermodel.Cell;
+import org.apache.poi.ss.usermodel.CellType;
+import org.apache.poi.ss.usermodel.CellValue;
+import org.apache.poi.ss.usermodel.FormulaEvaluator;
+import org.apache.poi.ss.usermodel.Row;
+import org.apache.poi.ss.usermodel.Sheet;
+import org.apache.poi.ss.usermodel.Workbook;
+import org.junit.jupiter.api.Test;
 
 /**
  * Miscellaneous tests for bugzilla entries.<p> The test name contains the
@@ -61,14 +67,14 @@ public final class TestFormulaBugs {
 
                assertEquals(CellType.NUMERIC, cv.getCellType());
                assertEquals(3.0, cv.getNumberValue(), 0.0);
-               
+
                wb.close();
                is.close();
        }
 
        /**
         * Bug 27405 - isnumber() formula always evaluates to false in if 
statement<p>
-        * 
+        *
         * seems to be a duplicate of 24925
         */
        @Test
@@ -102,18 +108,18 @@ public final class TestFormulaBugs {
 //                             throw new RuntimeException(e);
 //                     }
 //             }
-               
+
                // use POI's evaluator as an extra sanity check
                FormulaEvaluator fe = 
wb.getCreationHelper().createFormulaEvaluator();
                CellValue cv;
                cv = fe.evaluate(cell);
                assertEquals(CellType.NUMERIC, cv.getCellType());
                assertEquals(1.0, cv.getNumberValue(), 0.0);
-               
+
                cv = fe.evaluate(row.getCell(1));
                assertEquals(CellType.BOOLEAN, cv.getCellType());
         assertTrue(cv.getBooleanValue());
-               
+
                wb.close();
        }
 
@@ -122,49 +128,48 @@ public final class TestFormulaBugs {
         */
        @Test
        public void test42448() throws IOException {
-               Workbook wb = new HSSFWorkbook();
-               Sheet sheet1 = wb.createSheet("Sheet1");
+               try (Workbook wb = new HSSFWorkbook()) {
+                       Sheet sheet1 = wb.createSheet("Sheet1");
 
-               Row row = sheet1.createRow(0);
-               Cell cell = row.createCell(0);
+                       Row row = sheet1.createRow(0);
+                       Cell cell = row.createCell(0);
 
-               // it's important to create the referenced sheet first
-               Sheet sheet2 = wb.createSheet("A"); // note name 'A'
-               // TODO - POI crashes if the formula is added before this sheet
-               // RuntimeException("Zero length string is an invalid sheet 
name")
-               // Excel doesn't crash but the formula doesn't work until it is
-               // re-entered
-
-               String inputFormula = "SUMPRODUCT(A!C7:A!C67, B8:B68) / B69"; 
// as per bug report
-               try {
-                       cell.setCellFormula(inputFormula); 
-               } catch (StringIndexOutOfBoundsException e) {
-                       fail("Identified bug 42448");
-               }
+                       // it's important to create the referenced sheet first
+                       Sheet sheet2 = wb.createSheet("A"); // note name 'A'
+                       // TODO - POI crashes if the formula is added before 
this sheet
+                       // RuntimeException("Zero length string is an invalid 
sheet name")
+                       // Excel doesn't crash but the formula doesn't work 
until it is
+                       // re-entered
+
+                       String inputFormula = "SUMPRODUCT(A!C7:A!C67, B8:B68) / 
B69"; // as per bug report
+                       try {
+                               cell.setCellFormula(inputFormula);
+                       } catch (StringIndexOutOfBoundsException e) {
+                               fail("Identified bug 42448");
+                       }
+
+                       assertEquals("SUMPRODUCT(A!C7:A!C67,B8:B68)/B69", 
cell.getCellFormula());
+
+                       // might as well evaluate the sucker...
+
+                       addCell(sheet2, 5, 2, 3.0); // A!C6
+                       addCell(sheet2, 6, 2, 4.0); // A!C7
+                       addCell(sheet2, 66, 2, 5.0); // A!C67
+                       addCell(sheet2, 67, 2, 6.0); // A!C68
+
+                       addCell(sheet1, 6, 1, 7.0); // B7
+                       addCell(sheet1, 7, 1, 8.0); // B8
+                       addCell(sheet1, 67, 1, 9.0); // B68
+                       addCell(sheet1, 68, 1, 10.0); // B69
 
-               assertEquals("SUMPRODUCT(A!C7:A!C67,B8:B68)/B69", 
cell.getCellFormula());
+                       double expectedResult = (4.0 * 8.0 + 5.0 * 9.0) / 10.0;
 
-               // might as well evaluate the sucker...
+                       FormulaEvaluator fe = 
wb.getCreationHelper().createFormulaEvaluator();
+                       CellValue cv = fe.evaluate(cell);
 
-               addCell(sheet2, 5, 2, 3.0); // A!C6
-               addCell(sheet2, 6, 2, 4.0); // A!C7
-               addCell(sheet2, 66, 2, 5.0); // A!C67
-               addCell(sheet2, 67, 2, 6.0); // A!C68
-
-               addCell(sheet1, 6, 1, 7.0); // B7
-               addCell(sheet1, 7, 1, 8.0); // B8
-               addCell(sheet1, 67, 1, 9.0); // B68
-               addCell(sheet1, 68, 1, 10.0); // B69
-
-               double expectedResult = (4.0 * 8.0 + 5.0 * 9.0) / 10.0;
-
-               FormulaEvaluator fe = 
wb.getCreationHelper().createFormulaEvaluator();
-               CellValue cv = fe.evaluate(cell);
-
-               assertEquals(CellType.NUMERIC, cv.getCellType());
-               assertEquals(expectedResult, cv.getNumberValue(), 0.0);
-
-               wb.close();
+                       assertEquals(CellType.NUMERIC, cv.getCellType());
+                       assertEquals(expectedResult, cv.getNumberValue(), 0.0);
+               }
        }
 
        private static void addCell(Sheet sheet, int rowIx, int colIx,
@@ -183,21 +188,21 @@ public final class TestFormulaBugs {
                checkFormulaValue(wb, cell, "PV(0.08/12, 20*12, 500, ,0)", 
-59777.14585);
                checkFormulaValue(wb, cell, "PV(0.08/12, 20*12, 500, ,)", 
-59777.14585);
                checkFormulaValue(wb, cell, "PV(0.08/12, 20*12, 500, 500,)", 
-59878.6315455);
-               
+
                checkFormulaValue(wb, cell, "FV(0.08/12, 20*12, 500, ,)", 
-294510.2078107270);
                checkFormulaValue(wb, cell, "PMT(0.08/12, 20*12, 500, ,)", 
-4.1822003450);
                checkFormulaValue(wb, cell, "NPER(0.08/12, 20*12, 500, ,)", 
-2.0758873434);
 
                wb.close();
        }
-       
+
        // bug 52063: LOOKUP(2-arg) and LOOKUP(3-arg)
        // FIXME: This could be moved into LookupFunctionsTestCaseData.xls, 
which is tested by TestLookupFunctionsFromSpreadsheet.java
        @Test
        public void testLookupFormula() throws Exception {
                Workbook wb = new HSSFWorkbook();
                Sheet sheet = wb.createSheet("52063");
-               
+
                // Note: Values in arrays are in ascending order since LOOKUP 
expects that in order to work properly
                //               column
                //               A B C
@@ -212,33 +217,33 @@ public final class TestFormulaBugs {
                row.createCell(0).setCellValue("X");
                row.createCell(1).setCellValue("Y");
                row.createCell(2).setCellValue("Z");
-               
+
                Cell evalcell = sheet.createRow(2).createCell(0);
-               
+
                //// ROW VECTORS
                // lookup and result row are the same
                checkFormulaValue(wb, evalcell, "LOOKUP(\"Q\", A1:C1)", "Q");
                checkFormulaValue(wb, evalcell, "LOOKUP(\"R\", A1:C1)", "R");
                checkFormulaValue(wb, evalcell, "LOOKUP(\"Q\", A1:C1, A1:C1)", 
"Q");
                checkFormulaValue(wb, evalcell, "LOOKUP(\"R\", A1:C1, A1:C1)", 
"R");
-               
+
                // lookup and result row are different
                checkFormulaValue(wb, evalcell, "LOOKUP(\"Q\", A1:C2)", "Y");
                checkFormulaValue(wb, evalcell, "LOOKUP(\"R\", A1:C2)", "Z");
                checkFormulaValue(wb, evalcell, "LOOKUP(\"Q\", A1:C1, A2:C2)", 
"Y");
                checkFormulaValue(wb, evalcell, "LOOKUP(\"R\", A1:C1, A2:C2)", 
"Z");
-               
+
                //// COLUMN VECTORS
                // lookup and result column are different
                checkFormulaValue(wb, evalcell, "LOOKUP(\"P\", A1:B2)", "Q");
                checkFormulaValue(wb, evalcell, "LOOKUP(\"X\", A1:A2, C1:C2)", 
"Z");
-               
+
                wb.close();
        }
-       
+
        private CellValue evaluateFormulaInCell(Workbook wb, Cell cell, String 
formula) {
                cell.setCellFormula(formula);
-               
+
                FormulaEvaluator evaluator = 
wb.getCreationHelper().createFormulaEvaluator();
 
         return evaluator.evaluate(cell);
@@ -248,7 +253,7 @@ public final class TestFormulaBugs {
                CellValue value = evaluateFormulaInCell(wb, cell, formula);
                assertEquals(expectedValue, value.getNumberValue(), 0.0001);
        }
-       
+
        private void checkFormulaValue(Workbook wb, Cell cell, String formula, 
String expectedValue) {
                CellValue value = evaluateFormulaInCell(wb, cell, formula);
                assertEquals(expectedValue, value.getStringValue());

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestFormulasFromSpreadsheet.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestFormulasFromSpreadsheet.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestFormulasFromSpreadsheet.java
 (original)
+++ 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestFormulasFromSpreadsheet.java
 Thu Dec 24 18:42:29 2020
@@ -17,14 +17,15 @@
 
 package org.apache.poi.ss.formula.eval;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.fail;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
 
 import java.util.ArrayList;
-import java.util.Collection;
 import java.util.List;
 import java.util.Locale;
+import java.util.stream.Stream;
 
 import org.apache.poi.hssf.HSSFTestDataSamples;
 import org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator;
@@ -36,12 +37,10 @@ import org.apache.poi.ss.usermodel.CellV
 import org.apache.poi.ss.usermodel.Row;
 import org.apache.poi.ss.usermodel.Sheet;
 import org.apache.poi.util.LocaleUtil;
-import org.junit.AfterClass;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.junit.runners.Parameterized;
-import org.junit.runners.Parameterized.Parameter;
-import org.junit.runners.Parameterized.Parameters;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
 
 /**
  * Tests formulas and operators as loaded from a test data spreadsheet.<p>
@@ -51,7 +50,6 @@ import org.junit.runners.Parameterized.P
  * corresponding test class (<tt>TestXxxx</tt>) of the target (<tt>Xxxx</tt>) 
implementor,
  * where execution can be observed more easily.
  */
-@RunWith(Parameterized.class)
 public final class TestFormulasFromSpreadsheet {
 
     private static HSSFWorkbook workbook;
@@ -97,22 +95,13 @@ public final class TestFormulasFromSprea
                int NUMBER_OF_ROWS_PER_FUNCTION = 4;
        }
 
-    @SuppressWarnings("DefaultAnnotationParam")
-    @Parameter(value = 0)
-    public String targetFunctionName;
-    @Parameter(value = 1)
-    public int formulasRowIdx;
-    @Parameter(value = 2)
-    public int expectedValuesRowIdx;
-
-    @AfterClass
+    @AfterAll
     public static void closeResource() throws Exception {
         LocaleUtil.setUserLocale(userLocale);
         workbook.close();
     }
 
-    @Parameters(name="{0}")
-    public static Collection<Object[]> data() {
+    public static Stream<Arguments> data() {
         // Function "Text" uses custom-formats which are locale specific
         // can't set the locale on a per-testrun execution, as some settings 
have been
         // already set, when we would try to change the locale by then
@@ -123,7 +112,7 @@ public final class TestFormulasFromSprea
         sheet = workbook.getSheetAt( 0 );
         evaluator = new HSSFFormulaEvaluator(workbook);
 
-        List<Object[]> data = new ArrayList<>();
+        List<Arguments> data = new ArrayList<>();
 
         processFunctionGroup(data, SS.START_OPERATORS_ROW_INDEX);
         processFunctionGroup(data, SS.START_FUNCTIONS_ROW_INDEX);
@@ -131,20 +120,20 @@ public final class TestFormulasFromSprea
         // processFunctionGroup(data, SS.START_OPERATORS_ROW_INDEX, 
"ConcatEval");
         // processFunctionGroup(data, SS.START_FUNCTIONS_ROW_INDEX, "Text");
 
-        return data;
+        return data.stream();
     }
 
     /**
      * @param startRowIndex row index in the spreadsheet where the first 
function/operator is found
      * Typically pass <code>null</code> to test all functions
      */
-    private static void processFunctionGroup(List<Object[]> data, int 
startRowIndex) {
+    private static void processFunctionGroup(List<Arguments> data, int 
startRowIndex) {
         for (int rowIndex = startRowIndex; true; rowIndex += 
SS.NUMBER_OF_ROWS_PER_FUNCTION) {
             Row r = sheet.getRow(rowIndex);
             String targetFunctionName = getTargetFunctionName(r);
-            assertNotNull("Test spreadsheet cell empty on row ("
+            assertNotNull(targetFunctionName, "Test spreadsheet cell empty on 
row ("
                     + (rowIndex+1) + "). Expected function name or '"
-                    + SS.FUNCTION_NAMES_END_SENTINEL + "'", 
targetFunctionName);
+                    + SS.FUNCTION_NAMES_END_SENTINEL + "'");
             if(targetFunctionName.equals(SS.FUNCTION_NAMES_END_SENTINEL)) {
                 // found end of functions list
                 break;
@@ -153,15 +142,16 @@ public final class TestFormulasFromSprea
             // expected results are on the row below
             Row expectedValuesRow = sheet.getRow(rowIndex + 1);
             int missingRowNum = rowIndex + 2; //+1 for 1-based, +1 for next row
-            assertNotNull("Missing expected values row for function '"
-                    + targetFunctionName + " (row " + missingRowNum + ")", 
expectedValuesRow);
+            assertNotNull(expectedValuesRow, "Missing expected values row for 
function '"
+                    + targetFunctionName + " (row " + missingRowNum + ")");
 
-            data.add(new Object[]{targetFunctionName, rowIndex, rowIndex + 1});
+            data.add(Arguments.of(targetFunctionName, rowIndex, rowIndex + 1));
         }
     }
 
-    @Test
-    public void processFunctionRow() {
+    @ParameterizedTest
+    @MethodSource("data")
+    public void processFunctionRow(String targetFunctionName, int 
formulasRowIdx, int expectedValuesRowIdx) {
         Row formulasRow = sheet.getRow(formulasRowIdx);
         Row expectedValuesRow = sheet.getRow(expectedValuesRowIdx);
 
@@ -180,31 +170,31 @@ public final class TestFormulasFromSprea
            String msg = String.format(Locale.ROOT, "Function '%s': Formula: %s 
@ %d:%d"
                    , targetFunctionName, c.getCellFormula(), 
formulasRow.getRowNum(), colnum);
 
-           assertNotNull(msg + " - Bad setup data expected value is null", 
expValue);
-           assertNotNull(msg + " - actual value was null", actValue);
+           assertNotNull(expValue, msg + " - Bad setup data expected value is 
null");
+           assertNotNull(actValue, msg + " - actual value was null");
 
            final CellType cellType = expValue.getCellType();
            switch (cellType) {
                case BLANK:
-                   assertEquals(msg, CellType.BLANK, actValue.getCellType());
+                   assertEquals(CellType.BLANK, actValue.getCellType(), msg);
                    break;
                case BOOLEAN:
-                   assertEquals(msg, CellType.BOOLEAN, actValue.getCellType());
-                   assertEquals(msg, expValue.getBooleanCellValue(), 
actValue.getBooleanValue());
+                   assertEquals(CellType.BOOLEAN, actValue.getCellType(), msg);
+                   assertEquals(expValue.getBooleanCellValue(), 
actValue.getBooleanValue(), msg);
                    break;
                case ERROR:
-                   assertEquals(msg, CellType.ERROR, actValue.getCellType());
-                   assertEquals(msg, 
ErrorEval.getText(expValue.getErrorCellValue()), 
ErrorEval.getText(actValue.getErrorValue()));
+                   assertEquals(CellType.ERROR, actValue.getCellType(), msg);
+                   
assertEquals(ErrorEval.getText(expValue.getErrorCellValue()), 
ErrorEval.getText(actValue.getErrorValue()), msg);
                    break;
                case FORMULA: // will never be used, since we will call method 
after formula evaluation
                    fail("Cannot expect formula as result of formula 
evaluation: " + msg);
                case NUMERIC:
-                   assertEquals(msg, CellType.NUMERIC, actValue.getCellType());
-                   TestMathX.assertEquals(msg, expValue.getNumericCellValue(), 
actValue.getNumberValue(), TestMathX.POS_ZERO, TestMathX.DIFF_TOLERANCE_FACTOR);
+                   assertEquals(CellType.NUMERIC, actValue.getCellType(), msg);
+                   TestMathX.assertDouble(msg, expValue.getNumericCellValue(), 
actValue.getNumberValue(), TestMathX.POS_ZERO, TestMathX.DIFF_TOLERANCE_FACTOR);
                    break;
                case STRING:
-                   assertEquals(msg, CellType.STRING, actValue.getCellType());
-                   assertEquals(msg, 
expValue.getRichStringCellValue().getString(), actValue.getStringValue());
+                   assertEquals(CellType.STRING, actValue.getCellType(), msg);
+                   assertEquals(expValue.getRichStringCellValue().getString(), 
actValue.getStringValue(), msg);
                    break;
                default:
                    fail("Unexpected cell type: " + cellType);
@@ -224,14 +214,11 @@ public final class TestFormulasFromSprea
                        System.err.println("Warning - Row " + r.getRowNum() + " 
has no cell " + SS.COLUMN_INDEX_FUNCTION_NAME + ", can't figure out function 
name");
                        return null;
                }
-               if(cell.getCellType() == CellType.BLANK) {
-                       return null;
-               }
-               if(cell.getCellType() == CellType.STRING) {
-                       return cell.getRichStringCellValue().getString();
-               }
 
-               fail("Bad cell type for 'function name' column: (" + 
cell.getCellType() + ") row (" + (r.getRowNum() +1) + ")");
-               return null;
+        CellType ct = cell.getCellType();
+        assertTrue(ct == CellType.BLANK || ct == CellType.STRING,
+            "Bad cell type for 'function name' column: (" + cell.getCellType() 
+ ") row (" + (r.getRowNum() +1) + ")");
+
+        return (ct == CellType.STRING) ? 
cell.getRichStringCellValue().getString() : null;
        }
 }

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestMinusZeroResult.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestMinusZeroResult.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestMinusZeroResult.java 
(original)
+++ 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestMinusZeroResult.java 
Thu Dec 24 18:42:29 2020
@@ -17,12 +17,12 @@
 
 package org.apache.poi.ss.formula.eval;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import org.apache.poi.ss.formula.functions.Function;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * IEEE 754 defines a quantity '-0.0' which is distinct from '0.0'.

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestMissingArgEval.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestMissingArgEval.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestMissingArgEval.java 
(original)
+++ 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestMissingArgEval.java 
Thu Dec 24 18:42:29 2020
@@ -17,9 +17,9 @@
 
 package org.apache.poi.ss.formula.eval;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.io.IOException;
 
@@ -28,7 +28,7 @@ import org.apache.poi.hssf.usermodel.HSS
 import org.apache.poi.hssf.usermodel.HSSFSheet;
 import org.apache.poi.hssf.usermodel.HSSFWorkbook;
 import org.apache.poi.ss.usermodel.CellValue;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Tests for {@link MissingArgEval}

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestMultiSheetEval.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestMultiSheetEval.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestMultiSheetEval.java 
(original)
+++ 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestMultiSheetEval.java 
Thu Dec 24 18:42:29 2020
@@ -17,15 +17,16 @@
 
 package org.apache.poi.ss.formula.eval;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
 
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
 import java.util.Locale;
+import java.util.stream.Stream;
 
 import org.apache.poi.hssf.HSSFTestDataSamples;
 import org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator;
@@ -36,15 +37,13 @@ import org.apache.poi.ss.usermodel.CellT
 import org.apache.poi.ss.usermodel.CellValue;
 import org.apache.poi.ss.usermodel.Row;
 import org.apache.poi.ss.usermodel.Sheet;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.junit.runners.Parameterized;
-import org.junit.runners.Parameterized.Parameter;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
 
 /**
  * Tests formulas for multi sheet reference (i.e. SUM(Sheet1:Sheet5!A1))
  */
-@RunWith(Parameterized.class)
 public final class TestMultiSheetEval {
        /**
         * This class defines constants for navigating around the test data 
spreadsheet used for these tests.
@@ -89,27 +88,14 @@ public final class TestMultiSheetEval {
        private static HSSFFormulaEvaluator evaluator;
        private static Collection<String> funcs;
 
-       @SuppressWarnings("DefaultAnnotationParam")
-       @Parameter(value = 0)
-       public String testName;
 
-       @Parameter(value = 1)
-       public String functionName;
-
-       @Parameter(value = 2)
-       public Cell expected;
-
-       @Parameter(value = 3)
-       public Row testRow;
-
-       @Parameterized.Parameters(name="{0}")
-       public static Collection<Object[]> data() {
+       public static Stream<Arguments> data() {
                HSSFWorkbook workbook = 
HSSFTestDataSamples.openSampleWorkbook(SS.FILENAME);
                Sheet sheet = workbook.getSheet(SS.TEST_SHEET_NAME);
                evaluator = new HSSFFormulaEvaluator(workbook);
                funcs = FunctionEval.getSupportedFunctionNames();
 
-               List<Object[]> data = new ArrayList<>();
+               List<Arguments> data = new ArrayList<>();
                for (int rowIndex = 
SS.START_FUNCTIONS_ROW_INDEX;true;rowIndex++) {
                        Row r = sheet.getRow(rowIndex);
 
@@ -119,7 +105,7 @@ public final class TestMultiSheetEval {
                        }
 
                        String targetFunctionName = getTargetFunctionName(r);
-                       assertNotNull("Expected function name or '" + 
SS.FUNCTION_NAMES_END_SENTINEL + "'", targetFunctionName);
+                       assertNotNull(targetFunctionName, "Expected function 
name or '" + SS.FUNCTION_NAMES_END_SENTINEL + "'");
                        if 
(targetFunctionName.equals(SS.FUNCTION_NAMES_END_SENTINEL)) {
                                // found end of functions list
                                break;
@@ -128,29 +114,30 @@ public final class TestMultiSheetEval {
 
                        // expected results are on the row below
                        Cell expectedValueCell = 
r.getCell(SS.COLUMN_INDEX_EXPECTED_VALUE);
-                       assertNotNull("Missing expected values cell for 
function '" + targetFunctionName, expectedValueCell);
+                       assertNotNull(expectedValueCell, "Missing expected 
values cell for function '" + targetFunctionName);
 
-                       data.add(new Object[]{ targetTestName, 
targetFunctionName, expectedValueCell, r });
+                       data.add(Arguments.of( targetTestName, 
targetFunctionName, expectedValueCell, r ));
                }
 
-               return data;
+               return data.stream();
        }
 
-       @Test
-       public void testFunction() {
+       @ParameterizedTest
+       @MethodSource("data")
+       public void testFunction(String testName, String functionName, Cell 
expected, Row testRow) {
 
                Cell c = testRow.getCell(SS.COLUMN_INDEX_ACTUAL_VALUE);
                if (c == null || c.getCellType() != CellType.FORMULA) {
                        // missing test data
                        assertTrue(testRow.getRowNum() >= 
SS.START_FUNCTIONS_ROW_INDEX);
-                       assertTrue("unsupported function", 
funcs.contains(functionName.toUpperCase(Locale.ROOT)));
+                       
assertTrue(funcs.contains(functionName.toUpperCase(Locale.ROOT)), "unsupported 
function");
                        return;
                }
 
                CellValue actual = evaluator.evaluate(c);
 
-               assertNotNull("Bad setup data expected value is null", 
expected);
-               assertNotNull("actual value was null", actual);
+               assertNotNull(expected, "Bad setup data expected value is 
null");
+               assertNotNull(actual, "actual value was null");
 
                final CellType cellType = expected.getCellType();
 
@@ -171,7 +158,7 @@ public final class TestMultiSheetEval {
                                break;
                        case NUMERIC:
                                assertEquals(CellType.NUMERIC, 
actual.getCellType());
-                               TestMathX.assertEquals("", 
expected.getNumericCellValue(), actual.getNumberValue(), TestMathX.POS_ZERO, 
TestMathX.DIFF_TOLERANCE_FACTOR);
+                               TestMathX.assertDouble("", 
expected.getNumericCellValue(), actual.getNumberValue(), TestMathX.POS_ZERO, 
TestMathX.DIFF_TOLERANCE_FACTOR);
                                break;
                        case STRING:
                                assertEquals(CellType.STRING, 
actual.getCellType());
@@ -184,17 +171,17 @@ public final class TestMultiSheetEval {
        }
 
        private static String getTargetFunctionName(Row r) {
-               assertNotNull("given null row, can't figure out function name", 
r);
+               assertNotNull(r, "given null row, can't figure out function 
name");
                Cell cell = r.getCell(SS.COLUMN_INDEX_FUNCTION_NAME);
-               assertNotNull("Row " + r.getRowNum() + " has no cell " + 
SS.COLUMN_INDEX_FUNCTION_NAME + ", can't figure out function name", cell);
+               assertNotNull(cell, "Row " + r.getRowNum() + " has no cell " + 
SS.COLUMN_INDEX_FUNCTION_NAME + ", can't figure out function name");
                assertEquals(CellType.STRING, cell.getCellType());
                return cell.getRichStringCellValue().getString();
        }
 
        private static String getTargetTestName(Row r) {
-               assertNotNull("Given null row, can't figure out test name", r);
+               assertNotNull(r, "Given null row, can't figure out test name");
                Cell cell = r.getCell(SS.COLUMN_INDEX_TEST_NAME);
-               assertNotNull("Row " + r.getRowNum() + " has no cell " + 
SS.COLUMN_INDEX_TEST_NAME + ", can't figure out test name", cell);
+               assertNotNull(cell, "Row " + r.getRowNum() + " has no cell " + 
SS.COLUMN_INDEX_TEST_NAME + ", can't figure out test name");
                assertEquals(CellType.STRING, cell.getCellType());
                return cell.getRichStringCellValue().getString();
        }

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestOperandResolver.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestOperandResolver.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestOperandResolver.java 
(original)
+++ 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestOperandResolver.java 
Thu Dec 24 18:42:29 2020
@@ -17,14 +17,14 @@
 
 package org.apache.poi.ss.formula.eval;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNull;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
 
 import java.util.LinkedHashMap;
 import java.util.Map;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Tests for <tt>OperandResolver</tt>
@@ -42,7 +42,7 @@ public final class TestOperandResolver {
                String value = ".1";
                Double resolvedValue = OperandResolver.parseDouble(value);
 
-               assertNotNull("Identified bug 49723", resolvedValue);
+               assertNotNull(resolvedValue, "Identified bug 49723");
        }
 
        /**

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestPercentEval.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestPercentEval.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestPercentEval.java 
(original)
+++ poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestPercentEval.java 
Thu Dec 24 18:42:29 2020
@@ -17,7 +17,7 @@
 
 package org.apache.poi.ss.formula.eval;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import java.io.IOException;
 
@@ -30,7 +30,7 @@ import org.apache.poi.ss.formula.functio
 import org.apache.poi.ss.formula.functions.NumericFunctionInvoker;
 import org.apache.poi.ss.usermodel.CellType;
 import org.apache.poi.ss.usermodel.CellValue;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Test for percent operator evaluator.

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestPowerEval.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestPowerEval.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestPowerEval.java 
(original)
+++ poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestPowerEval.java 
Thu Dec 24 18:42:29 2020
@@ -17,7 +17,7 @@
 
 package org.apache.poi.ss.formula.eval;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import org.apache.poi.hssf.usermodel.HSSFCell;
 import org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator;
@@ -26,7 +26,7 @@ import org.apache.poi.hssf.usermodel.HSS
 import org.apache.poi.hssf.usermodel.HSSFWorkbook;
 import org.apache.poi.ss.usermodel.CellType;
 import org.apache.poi.ss.usermodel.CellValue;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Tests for power operator evaluator.

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestRangeEval.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestRangeEval.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestRangeEval.java 
(original)
+++ poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestRangeEval.java 
Thu Dec 24 18:42:29 2020
@@ -17,8 +17,8 @@
 
 package org.apache.poi.ss.formula.eval;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.util.Arrays;
 import java.util.List;
@@ -34,7 +34,7 @@ import org.apache.poi.ss.formula.ptg.Are
 import org.apache.poi.ss.usermodel.CellValue;
 import org.apache.poi.ss.util.AreaReference;
 import org.apache.poi.ss.util.CellReference;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Test for unary plus operator evaluator.

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestUnaryPlusEval.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestUnaryPlusEval.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestUnaryPlusEval.java 
(original)
+++ 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/TestUnaryPlusEval.java 
Thu Dec 24 18:42:29 2020
@@ -17,12 +17,12 @@
 
 package org.apache.poi.ss.formula.eval;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import org.apache.poi.ss.formula.functions.EvalFactory;
 import org.apache.poi.ss.formula.functions.NumericFunctionInvoker;
 import org.apache.poi.ss.formula.ptg.AreaPtg;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Test for unary plus operator evaluator.

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/forked/BaseTestForkedEvaluator.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/forked/BaseTestForkedEvaluator.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/forked/BaseTestForkedEvaluator.java
 (original)
+++ 
poi/trunk/src/testcases/org/apache/poi/ss/formula/eval/forked/BaseTestForkedEvaluator.java
 Thu Dec 24 18:42:29 2020
@@ -17,9 +17,9 @@
 
 package org.apache.poi.ss.formula.eval.forked;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 import java.io.IOException;
 
@@ -29,7 +29,7 @@ import org.apache.poi.ss.formula.eval.Nu
 import org.apache.poi.ss.usermodel.Row;
 import org.apache.poi.ss.usermodel.Sheet;
 import org.apache.poi.ss.usermodel.Workbook;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public class BaseTestForkedEvaluator {
 

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/function/TestFunctionMetadataRegistry.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/function/TestFunctionMetadataRegistry.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- 
poi/trunk/src/testcases/org/apache/poi/ss/formula/function/TestFunctionMetadataRegistry.java
 (original)
+++ 
poi/trunk/src/testcases/org/apache/poi/ss/formula/function/TestFunctionMetadataRegistry.java
 Thu Dec 24 18:42:29 2020
@@ -17,10 +17,10 @@
 
 package org.apache.poi.ss.formula.function;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 public final class TestFunctionMetadataRegistry {
        @Test

Modified: 
poi/trunk/src/testcases/org/apache/poi/ss/formula/function/TestParseMissingBuiltInFuncs.java
URL: 
http://svn.apache.org/viewvc/poi/trunk/src/testcases/org/apache/poi/ss/formula/function/TestParseMissingBuiltInFuncs.java?rev=1884783&r1=1884782&r2=1884783&view=diff
==============================================================================
--- 
poi/trunk/src/testcases/org/apache/poi/ss/formula/function/TestParseMissingBuiltInFuncs.java
 (original)
+++ 
poi/trunk/src/testcases/org/apache/poi/ss/formula/function/TestParseMissingBuiltInFuncs.java
 Thu Dec 24 18:42:29 2020
@@ -17,8 +17,8 @@
 
 package org.apache.poi.ss.formula.function;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
 
 import java.io.IOException;
 
@@ -28,7 +28,7 @@ import org.apache.poi.ss.formula.ptg.Abs
 import org.apache.poi.ss.formula.ptg.FuncPtg;
 import org.apache.poi.ss.formula.ptg.FuncVarPtg;
 import org.apache.poi.ss.formula.ptg.Ptg;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Tests parsing of some built-in functions that were not properly
@@ -53,7 +53,7 @@ public final class TestParseMissingBuilt
                    throw new RuntimeException("function token missing");
                }
                AbstractFunctionPtg func = (AbstractFunctionPtg) ptgF;
-               assertNotEquals("Failed to recognise built-in function in 
formula", 255, func.getFunctionIndex());
+               assertNotEquals(255, func.getFunctionIndex(), "Failed to 
recognise built-in function in formula");
                assertEquals(expPtgArraySize, ptgs.length);
                assertEquals(funcIx, func.getFunctionIndex());
                Class<? extends AbstractFunctionPtg> expCls = isVarArgFunc ? 
FuncVarPtg.class : FuncPtg.class;



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