(orc) branch branch-2.0 updated: ORC-1643: Add test for `scan` command

[dongjoon]

This is an automated email from the ASF dual-hosted git repository.

dongjoon pushed a commit to branch branch-2.0
in repository https://gitbox.apache.org/repos/asf/orc.git


The following commit(s) were added to refs/heads/branch-2.0 by this push:
     new 5115c173e ORC-1643: Add test for `scan` command
5115c173e is described below

commit 5115c173e0eee5f804e547c3ef47f0e9ba04b269
Author: sychen <syc...@ctrip.com>
AuthorDate: Mon Mar 4 11:28:27 2024 -0800

    ORC-1643: Add test for `scan` command
    
    ### What changes were proposed in this pull request?
    Add unit test for `scan` command of `orc-tools`.
    
    ### Why are the changes needed?
    Improve code test coverage and avoid regressions.
    
    ### How was this patch tested?
    Add UT
    
    ### Was this patch authored or co-authored using generative AI tooling?
    No
    
    Closes #1833 from cxzl25/ORC-1643.
    
    Authored-by: sychen <syc...@ctrip.com>
    Signed-off-by: Dongjoon Hyun <dongj...@apache.org>
    (cherry picked from commit 01ebb961ba30f25efd33777a5220225feedc45c2)
    Signed-off-by: Dongjoon Hyun <dongj...@apache.org>
---
 .../src/test/org/apache/orc/tools/TesScanData.java | 91 ++++++++++++++++++++++
 1 file changed, 91 insertions(+)

diff --git a/java/tools/src/test/org/apache/orc/tools/TesScanData.java 
b/java/tools/src/test/org/apache/orc/tools/TesScanData.java
new file mode 100644
index 000000000..df73abc90
--- /dev/null
+++ b/java/tools/src/test/org/apache/orc/tools/TesScanData.java
@@ -0,0 +1,91 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.orc.tools;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.hive.ql.exec.vector.BytesColumnVector;
+import org.apache.hadoop.hive.ql.exec.vector.LongColumnVector;
+import org.apache.hadoop.hive.ql.exec.vector.VectorizedRowBatch;
+import org.apache.orc.OrcFile;
+import org.apache.orc.TypeDescription;
+import org.apache.orc.Writer;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import java.io.ByteArrayOutputStream;
+import java.io.PrintStream;
+import java.nio.charset.StandardCharsets;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+public class TesScanData {
+  private Path workDir = new Path(System.getProperty("test.tmp.dir"));
+  private Configuration conf;
+  private FileSystem fs;
+  private Path testFilePath;
+
+  @BeforeEach
+  public void openFileSystem() throws Exception {
+    conf = new Configuration();
+    fs = FileSystem.getLocal(conf);
+    fs.setWorkingDirectory(workDir);
+    testFilePath = new Path("TesScanData.testScan.orc");
+    fs.delete(testFilePath, false);
+  }
+
+  @Test
+  public void testScan() throws Exception {
+    TypeDescription schema = 
TypeDescription.fromString("struct<x:int,y:string>");
+    Writer writer = OrcFile.createWriter(testFilePath,
+        OrcFile.writerOptions(conf)
+            .setSchema(schema));
+    VectorizedRowBatch batch = schema.createRowBatch();
+    LongColumnVector x = (LongColumnVector) batch.cols[0];
+    BytesColumnVector y = (BytesColumnVector) batch.cols[1];
+    for (int r = 0; r < 10000; ++r) {
+      int row = batch.size++;
+      x.vector[row] = r;
+      byte[] buffer = ("byte-" + r).getBytes();
+      y.setRef(row, buffer, 0, buffer.length);
+      if (batch.size == batch.getMaxSize()) {
+        writer.addRowBatch(batch);
+        batch.reset();
+      }
+    }
+    if (batch.size != 0) {
+      writer.addRowBatch(batch);
+    }
+    writer.close();
+
+    PrintStream origOut = System.out;
+    ByteArrayOutputStream myOut = new ByteArrayOutputStream();
+    // replace stdout and run command
+    System.setOut(new PrintStream(myOut, false, StandardCharsets.UTF_8));
+    ScanData.main(conf, new String[]{"--schema", testFilePath.toString()});
+    System.out.flush();
+    System.setOut(origOut);
+    String output = myOut.toString(StandardCharsets.UTF_8);
+    assertTrue(output.contains("{\"category\": \"struct\", \"id\": 0, \"max\": 
2, \"fields\": [\n" +
+        "{  \"x\": {\"category\": \"int\", \"id\": 1, \"max\": 1}},\n" +
+        "{  \"y\": {\"category\": \"string\", \"id\": 2, \"max\": 2}}]}"));
+    assertTrue(output.contains("File: TesScanData.testScan.orc, bad batches: 
0, rows: 10000/10000"));
+  }
+}