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MAPREDUCE-3595. Add missing TestCounters#testCounterValue test from branch 1 to 0.23 (Contributed by Tom White) 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1227380 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Siddharth Seth 2012-01-04 23:15:41 +00:00
parent f445eb31f1
commit be285fc27f
2 changed files with 35 additions and 0 deletions
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3
hadoop-mapreduce-project/CHANGES.txt
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@ -398,6 +398,9 @@ Release 0.23.1 - Unreleased
MAPREDUCE-3529. TokenCache does not cache viewfs credentials correctly
(sseth)
MAPREDUCE-3595. Add missing TestCounters#testCounterValue test from branch
1 to 0.23 (Tom White via sseth)
Release 0.23.0 - 2011-11-01
INCOMPATIBLE CHANGES

32
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/test/java/org/apache/hadoop/mapred/TestCounters.java
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@ -21,6 +21,7 @@ import static org.junit.Assert.assertEquals;
import java.io.IOException;
import java.text.ParseException;
import java.util.Random;
import org.apache.hadoop.mapred.Counters.Counter;
import org.apache.hadoop.mapreduce.FileSystemCounter;
@ -98,6 +99,37 @@ public class TestCounters {
}
}
/**
* Verify counter value works
*/
@SuppressWarnings("deprecation")
@Test
public void testCounterValue() {
Counters counters = new Counters();
final int NUMBER_TESTS = 100;
final int NUMBER_INC = 10;
final Random rand = new Random();
for (int i = 0; i < NUMBER_TESTS; i++) {
long initValue = rand.nextInt();
long expectedValue = initValue;
Counter counter = counters.findCounter("foo", "bar");
counter.setValue(initValue);
assertEquals("Counter value is not initialized correctly",
expectedValue, counter.getValue());
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());
}
expectedValue = rand.nextInt();
counter.setValue(expectedValue);
assertEquals("Counter value is not set correctly",
expectedValue, counter.getValue());
}
}
@SuppressWarnings("deprecation")
@Test
public void testLegacyNames() {