HADOOP-1328. Implement user counters in streaming. Missed a new file. Contributed by Tom White.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/core/trunk@663368 13f79535-47bb-0310-9956-ffa450edef68

src/contrib/streaming/src/test/org/apache/hadoop/streaming/TestStreamingCounters.java

@@ -0,0 +1,72 @@
+/**
+ * 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.hadoop.streaming;
+
+import java.io.File;
+import java.io.IOException;
+
+import org.apache.hadoop.mapred.Counters;
+import org.apache.hadoop.mapred.Counters.Counter;
+import org.apache.hadoop.mapred.Counters.Group;
+
+/**
+ * This class tests streaming counters in MapReduce local mode.
+ */
+public class TestStreamingCounters extends TestStreaming {
+
+  public TestStreamingCounters() throws IOException {
+    super();
+  }
+
+  public void testCommandLine() throws IOException
+  {
+    try {
+      try {
+        OUTPUT_DIR.getAbsoluteFile().delete();
+      } catch (Exception e) {
+      }
+
+      createInput();
+      boolean mayExit = false;
+
+      // During tests, the default Configuration will use a local mapred
+      // So don't specify -config or -cluster
+      StreamJob job = new StreamJob(genArgs(), mayExit);      
+      job.go();
+      File outFile = new File(OUTPUT_DIR, "part-00000").getAbsoluteFile();
+      String output = StreamUtil.slurp(outFile);
+      outFile.delete();
+      assertEquals(outputExpect, output);
+      
+      Counters counters = job.running_.getCounters();
+      assertNotNull("Counters", counters);
+      Group group = counters.getGroup("UserCounters");
+      assertNotNull("Group", group);
+      Counter counter = group.getCounterForName("InputLines");
+      assertNotNull("Counter", counter);
+      assertEquals(3, counter.getCounter());
+    } finally {
+      File outFileCRC = new File(OUTPUT_DIR, ".part-00000.crc").getAbsoluteFile();
+      INPUT_FILE.delete();
+      outFileCRC.delete();
+      OUTPUT_DIR.getAbsoluteFile().delete();
+    }
+  }
+  
+}