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JUnit is a regression testing framework written by Erich Gamma and Kent Beck.
It is used by the developer who implements unit tests in Java.
package org.junit.runner;
import java.util.ArrayList;
import java.util.List;
import org.junit.runner.notification.Failure;
import org.junit.runner.notification.RunListener;
/**
* A Result collects and summarizes information from running multiple
* tests. Since tests are expected to run correctly, successful tests are only noted in
* the count of tests that ran.
*/
public class Result {
private int fCount= 0;
private int fIgnoreCount= 0;
private final List fFailures= new ArrayList();
private long fRunTime= 0;
private long fStartTime;
/**
* @return the number of tests run
*/
public int getRunCount() {
return fCount;
}
/**
* @return the number of tests that failed during the run
*/
public int getFailureCount() {
return fFailures.size();
}
/**
* @return the number of milliseconds it took to run the entire suite to run
*/
public long getRunTime() {
return fRunTime;
}
/**
* @return the {@link Failure}s describing tests that failed and the problems they encountered
*/
public List getFailures() {
return fFailures;
}
/**
* @return the number of tests ignored during the run
*/
public int getIgnoreCount() {
return fIgnoreCount;
}
/**
* @return true if all tests succeeded
*/
public boolean wasSuccessful() {
return getFailureCount() == 0;
}
private class Listener extends RunListener {
private boolean fIgnoredDuringExecution= false;
@Override
public void testRunStarted(Description description) throws Exception {
fStartTime= System.currentTimeMillis();
}
@Override
public void testRunFinished(Result result) throws Exception {
long endTime= System.currentTimeMillis();
fRunTime+= endTime - fStartTime;
}
@Override
public void testFinished(Description description) throws Exception {
if (!fIgnoredDuringExecution)
fCount++;
fIgnoredDuringExecution= false;
}
@Override
public void testFailure(Failure failure) throws Exception {
fFailures.add(failure);
}
@Override
public void testIgnored(Description description) throws Exception {
fIgnoreCount++;
fIgnoredDuringExecution= true;
}
@Override
public void testAssumptionFailure(Failure failure) {
// do nothing: same as passing (for 4.5; may change in 4.6)
}
}
/**
* Internal use only.
*/
public RunListener createListener() {
return new Listener();
}
}