MAPREDUCE-7421. [JDK17] Upgrade Junit 4 to 5 in hadoop-mapreduce-client-jobclient Part2.

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapreduce/TestChild.java

@@ -140,8 +140,8 @@ private Job submitAndValidateJob(JobConf conf, int numMaps, int numReds,
     assertTrue(fs.exists(outDir), "Job output directory doesn't exit!");
     FileStatus[] list = fs.listStatus(outDir, new OutputFilter());
     int numPartFiles = numReds == 0 ? numMaps : numReds;
-    assertTrue(list.length == numPartFiles, "Number of part-files is " + list.length + " and not "
-        + numPartFiles);
+    assertTrue(list.length == numPartFiles,
+        "Number of part-files is " + list.length + " and not " + numPartFiles);
     return job;
   }
 

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapreduce/TestClientProtocolProviderImpls.java

@@ -27,10 +27,10 @@
 import org.apache.hadoop.mapred.YARNRunner;
 import org.apache.hadoop.mapreduce.server.jobtracker.JTConfig;
 import org.apache.hadoop.util.StringUtils;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
 
 public class TestClientProtocolProviderImpls {
 
@@ -91,9 +91,9 @@ public void testClusterExceptionRootCause() throws Exception {
       fail("Cluster init should fail because of non-existing FileSystem");
     } catch (IOException ioEx) {
       final String stackTrace = StringUtils.stringifyException(ioEx);
-      assertTrue("No root cause detected",
-          stackTrace.contains(UnsupportedFileSystemException.class.getName())
-              && stackTrace.contains("nosuchfs"));
+      assertTrue(stackTrace.contains(
+          UnsupportedFileSystemException.class.getName()) && stackTrace.contains("nosuchfs"),
+          "No root cause detected");
     }
   }
 }

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapreduce/TestCounters.java

@@ -23,9 +23,12 @@
 import org.apache.hadoop.mapreduce.counters.Limits;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertSame;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
-import static org.junit.Assert.*;
 /**
  * TestCounters checks the sanity and recoverability of {@code Counters}
  */
@@ -46,19 +49,19 @@ public void testCounterValue() {
       long expectedValue = initValue;
       Counter counter = new Counters().findCounter("test", "foo");
       counter.setValue(initValue);
-      assertEquals("Counter value is not initialized correctly",
-          expectedValue, counter.getValue());
+      assertEquals(expectedValue, counter.getValue(),
+          "Counter value is not initialized correctly");
       for (int j = 0; j < NUMBER_INC; j++) {
         int incValue = rand.nextInt();
         counter.increment(incValue);
         expectedValue += incValue;
-        assertEquals("Counter value is not incremented correctly",
-            expectedValue, counter.getValue());
+        assertEquals(expectedValue, counter.getValue(),
+            "Counter value is not incremented correctly");
       }
       expectedValue = rand.nextInt();
       counter.setValue(expectedValue);
-      assertEquals("Counter value is not set correctly",
-          expectedValue, counter.getValue());
+      assertEquals(expectedValue, counter.getValue(),
+          "Counter value is not set correctly");
     }
   }
 
@@ -148,6 +151,6 @@ private void shouldThrow(Class<? extends Exception> ecls, Runnable runnable) {
       LOG.info("got expected: "+ e);
       return;
     }
-    assertTrue("Should've thrown "+ ecls.getSimpleName(), false);
+    assertTrue(false, "Should've thrown "+ ecls.getSimpleName());
   }
 }

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapreduce/TestLargeSort.java

@@ -23,25 +23,25 @@
 import org.apache.hadoop.mapred.MiniMRClientClusterFactory;
 import org.apache.hadoop.util.ToolRunner;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 import java.io.IOException;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class TestLargeSort {
   MiniMRClientCluster cluster;
 
-  @Before
+  @BeforeEach
   public void setup() throws IOException {
     Configuration conf = new YarnConfiguration();
     cluster = MiniMRClientClusterFactory.create(this.getClass(), 2, conf);
     cluster.start();
   }
 
-  @After
+  @AfterEach
   public void cleanup() throws IOException {
     if (cluster != null) {
       cluster.stop();
@@ -59,8 +59,8 @@ public void testLargeSort() throws Exception {
       conf.setInt(MRJobConfig.IO_SORT_MB, ioSortMb);
       conf.setInt(LargeSorter.NUM_MAP_TASKS, 1);
       conf.setInt(LargeSorter.MBS_PER_MAP, ioSortMb);
-      assertEquals("Large sort failed for " + ioSortMb, 0,
-          ToolRunner.run(conf, new LargeSorter(), args));
+      assertEquals(0, ToolRunner.run(conf, new LargeSorter(), args),
+          "Large sort failed for " + ioSortMb);
     }
   }
 }

hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapreduce/TestLocalRunner.java

@@ -30,7 +30,8 @@
 import org.apache.hadoop.mapreduce.lib.input.FileSplit;
 import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
 import org.apache.hadoop.util.ReflectionUtils;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.Timeout;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -44,10 +45,10 @@
 import java.util.ArrayList;
 import java.util.List;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-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.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /**
  * Stress tests for the LocalJobRunner
@@ -235,9 +236,9 @@ private void verifyOutput(Path outputPath) throws IOException {
 
     // Should get a single line of the form "0\t(count)"
     String line = r.readLine().trim();
-    assertTrue("Line does not have correct key", line.startsWith("0\t"));
+    assertTrue(line.startsWith("0\t"), "Line does not have correct key");
     int count = Integer.valueOf(line.substring(2));
-    assertEquals("Incorrect count generated!", TOTAL_RECORDS, count);
+    assertEquals(TOTAL_RECORDS, count, "Incorrect count generated!");
 
     r.close();
 
@@ -276,23 +277,24 @@ public void testGcCounter() throws Exception {
     FileOutputFormat.setOutputPath(job, outputPath);
 
     boolean ret = job.waitForCompletion(true);
-    assertTrue("job failed", ret);
+    assertTrue(ret, "job failed");
 
     // This job should have done *some* gc work.
     // It had to clean up 400,000 objects.
     // We strongly suspect this will result in a few milliseconds effort.
     Counter gcCounter = job.getCounters().findCounter(
         TaskCounter.GC_TIME_MILLIS);
     assertNotNull(gcCounter);
-    assertTrue("No time spent in gc", gcCounter.getValue() > 0);
+    assertTrue(gcCounter.getValue() > 0, "No time spent in gc");
   }
 
 
   /**
    * Run a test with several mappers in parallel, operating at different
    * speeds. Verify that the correct amount of output is created.
    */
-  @Test(timeout=120*1000)
+  @Test
+  @Timeout(value=120)
   public void testMultiMaps() throws Exception {
     Job job = Job.getInstance();
 
@@ -377,7 +379,7 @@ public void testInvalidMultiMapParallelism() throws Exception {
     FileOutputFormat.setOutputPath(job, outputPath);
 
     boolean success = job.waitForCompletion(true);
-    assertFalse("Job succeeded somehow", success);
+    assertFalse(success, "Job succeeded somehow");
   }
 
   /** An IF that creates no splits */
@@ -434,7 +436,7 @@ public void testEmptyMaps() throws Exception {
     FileOutputFormat.setOutputPath(job, outputPath);
 
     boolean success = job.waitForCompletion(true);
-    assertTrue("Empty job should work", success);
+    assertTrue(success, "Empty job should work");
   }
 
   /** @return the directory where numberfiles are written (mapper inputs)  */
@@ -510,7 +512,7 @@ private void verifyNumberJob(int numMaps) throws Exception {
     int expectedPerMapper = maxVal * (maxVal + 1) / 2;
     int expectedSum = expectedPerMapper * numMaps;
     LOG.info("expected sum: " + expectedSum + ", got " + valueSum);
-    assertEquals("Didn't get all our results back", expectedSum, valueSum);
+    assertEquals(expectedSum, valueSum, "Didn't get all our results back");
   }
 
   /**
@@ -551,7 +553,7 @@ private void doMultiReducerTest(int numMaps, int numReduces,
     LocalJobRunner.setLocalMaxRunningReduces(job, parallelReduces);
 
     boolean result = job.waitForCompletion(true);
-    assertTrue("Job failed!!", result);
+    assertTrue(result, "Job failed!!");
 
     verifyNumberJob(numMaps);
   }