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From la...@apache.org
Subject svn commit: r1482687 - in /hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/metrics/file: ./ TestTimeStampingMetricsContext.java
Date Wed, 15 May 2013 06:23:23 GMT
Author: larsh
Date: Wed May 15 06:23:23 2013
New Revision: 1482687

URL: http://svn.apache.org/r1482687
Log:
HBASE-8508 improve unit-test coverage of package org.apache.hadoop.hbase.metrics.file (Ivan
A. Veselovsky)

Added:
    hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/metrics/file/
    hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/metrics/file/TestTimeStampingMetricsContext.java

Added: hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/metrics/file/TestTimeStampingMetricsContext.java
URL: http://svn.apache.org/viewvc/hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/metrics/file/TestTimeStampingMetricsContext.java?rev=1482687&view=auto
==============================================================================
--- hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/metrics/file/TestTimeStampingMetricsContext.java
(added)
+++ hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/metrics/file/TestTimeStampingMetricsContext.java
Wed May 15 06:23:23 2013
@@ -0,0 +1,107 @@
+/**
+ * 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.hbase.metrics.file;
+
+import java.io.File;
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.Collection;
+import java.util.Date;
+import java.util.Map;
+
+import org.apache.commons.io.FileUtils;
+import org.apache.hadoop.fs.FileUtil;
+import org.apache.hadoop.hbase.SmallTests;
+
+import org.junit.*;
+import org.junit.experimental.categories.Category;
+
+import static org.junit.Assert.*;
+
+/**
+ * Test for TimeStampingMetricsContext functionality.
+ * (FQN class names are used to suppress javac warnings in imports.)
+ */
+@Category(SmallTests.class)
+@SuppressWarnings("deprecation")
+public class TestTimeStampingMetricsContext {
+
+  private static final int updatePeriodSeconds = 2;
+
+  private TimeStampingFileContext mc;
+
+  @Test
+  public void testFileUpdate() throws Exception {
+    final Date start = new Date();
+    final File metricOutFile = FileUtil.createLocalTempFile(
+      new File(FileUtils.getTempDirectory(),getClass().getName() + "-out-"), "", true);
+    assertTrue(metricOutFile.exists());
+    assertEquals(0L, metricOutFile.length());
+
+    mc = new TimeStampingFileContext();
+    org.apache.hadoop.metrics.ContextFactory cf
+      = org.apache.hadoop.metrics.ContextFactory.getFactory();
+    cf.setAttribute("test1.fileName", metricOutFile.getAbsolutePath());
+    cf.setAttribute("test1.period", Integer.toString(updatePeriodSeconds));
+    mc.init("test1", cf);
+
+    assertEquals("test1", mc.getContextName());
+
+    org.apache.hadoop.metrics.MetricsRecord r = mc.createRecord("testRecord");
+    r.setTag("testTag1", "testTagValue1");
+    r.setTag("testTag2", "testTagValue2");
+    r.setMetric("testMetric1", 1);
+    r.setMetric("testMetric2", 33);
+    r.update();
+
+    mc.startMonitoring();
+    assertTrue(mc.isMonitoring());
+
+    // wait 3/2 of the update period:
+    Thread.sleep((1000 * updatePeriodSeconds * 3)/2);
+
+    mc.stopMonitoring();
+    assertFalse(mc.isMonitoring());
+
+    mc.close();
+
+    Map<String, Collection<org.apache.hadoop.metrics.spi.OutputRecord>> m = mc.getAllRecords();
+    assertEquals(1, m.size());
+    Collection<org.apache.hadoop.metrics.spi.OutputRecord> outputRecords = m.get("testRecord");
+    assertNotNull(outputRecords);
+    assertEquals(1, outputRecords.size());
+    org.apache.hadoop.metrics.spi.OutputRecord outputRecord = outputRecords.iterator().next();
+    assertNotNull(outputRecord);
+
+    String outStr = FileUtils.readFileToString(metricOutFile);
+    assertTrue(outStr.length() > 0);
+    int pos = outStr.indexOf(" ");
+    String time = outStr.substring(0, pos);
+
+    DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
+    Date date = df.parse(time);
+    assertTrue(date.after(start));
+    assertTrue(date.before(new Date()));
+
+    String reminder = outStr.substring(pos);
+    assertEquals(" test1.testRecord: testTag1=testTagValue1, testTag2=testTagValue2, testMetric1=1,"
+      +" testMetric2=33\n", reminder);
+  }
+
+}



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