Github user onealj commented on a diff in the pull request:
https://github.com/apache/commons-imaging/pull/27#discussion_r127633319
--- Diff:
src/test/java/org/apache/commons/imaging/formats/tiff/fieldtypes/FieldTypeByteTest.java
---
@@ -0,0 +1,37 @@
+package org.apache.commons.imaging.formats.tiff.fieldtypes;
+
+import org.junit.Test;
+
+import java.nio.ByteOrder;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.fail;
+
+/**
+ * Unit tests for class {@link FieldTypeByte}.
+ *
+ * @date 13.07.2017
+ * @see FieldTypeByte
+ *
+ **/
+public class FieldTypeByteTest{
+
+
+ @Test
+ public void testWriteDataWithNull() {
+
+ FieldTypeByte fieldTypeByte = FieldType.UNDEFINED;
+ ByteOrder byteOrder = ByteOrder.BIG_ENDIAN;
+
+ try {
+ fieldTypeByte.writeData( null, byteOrder);
+ fail("Expecting exception: Exception");
+ } catch(Exception e) {
+ assertEquals("Invalid data: null (null)",e.getMessage());
+ assertEquals(FieldTypeByte.class.getName(),
e.getStackTrace()[0].getClassName());
--- End diff --
It may be worth adding a helper method for this..
assertExceptionClassName(FieldTypeByte.class, e);
Why are you needing to look at the stack trace? Can't you look at the
exception class itself?
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