/** This method returns once the "startedAfterString" has been seen. */
protected Runner startWithArgs(String[] args, String startedAfterString, RunTypes type) {
LOG.info("Running with args {}", Arrays.toString(args));
outContent = new ByteArrayOutputStream();
errContent = new ByteArrayOutputStream();
System.setOut(new PrintStream(outContent));
System.setErr(new PrintStream(errContent));
final int START_TIMEOUT_SECONDS = 60;
Runner runner = new Runner(args, type);
runner.setName("Frontend (CLI/YARN Client) runner thread (startWithArgs()).");
runner.start();
for (int second = 0; second < START_TIMEOUT_SECONDS; second++) {
sleep(1000);
// check output for correct TaskManager startup.
if (outContent.toString().contains(startedAfterString)
|| errContent.toString().contains(startedAfterString)) {
LOG.info("Found expected output in redirected streams");
return runner;
}
// check if thread died
if (!runner.isAlive()) {
sendOutput();
Assert.fail(
"Runner thread died before the test was finished. Return value = "
+ runner.getReturnValue());
}
}
sendOutput();
Assert.fail(
"During the timeout period of "
+ START_TIMEOUT_SECONDS
+ " seconds the "
+ "expected string did not show up");
return null;
}
/**
* The test has been passed once the "terminateAfterString" has been seen.
*
* @param args Command line arguments for the runner
* @param terminateAfterString the runner is searching the stdout and stderr for this string. as
* soon as it appears, the test has passed
* @param failOnPatterns The runner is searching stdout and stderr for the pattern (regexp)
* specified here. If one appears, the test has failed
* @param type Set the type of the runner
* @param returnCode Expected return code from the runner.
* @param checkLogForTerminateString If true, the runner checks also the log4j logger for the
* terminate string
*/
protected void runWithArgs(
String[] args,
String terminateAfterString,
String[] failOnPatterns,
RunTypes type,
int returnCode,
boolean checkLogForTerminateString) {
LOG.info("Running with args {}", Arrays.toString(args));
outContent = new ByteArrayOutputStream();
errContent = new ByteArrayOutputStream();
System.setOut(new PrintStream(outContent));
System.setErr(new PrintStream(errContent));
// we wait for at most three minutes
final int START_TIMEOUT_SECONDS = 180;
final long deadline = System.currentTimeMillis() + (START_TIMEOUT_SECONDS * 1000);
Runner runner = new Runner(args, type);
runner.start();
boolean expectedStringSeen = false;
boolean testPassedFromLog4j = false;
do {
sleep(1000);
String outContentString = outContent.toString();
String errContentString = errContent.toString();
if (failOnPatterns != null) {
for (String failOnString : failOnPatterns) {
Pattern pattern = Pattern.compile(failOnString);
if (pattern.matcher(outContentString).find()
|| pattern.matcher(errContentString).find()) {
LOG.warn("Failing test. Output contained illegal string '" + failOnString + "'");
sendOutput();
// stopping runner.
runner.sendStop();
Assert.fail("Output contained illegal string '" + failOnString + "'");
}
}
}
// check output for the expected terminateAfterString.
if (checkLogForTerminateString) {
LoggingEvent matchedEvent = UtilsTest.getEventContainingString(terminateAfterString);
if (matchedEvent != null) {
testPassedFromLog4j = true;
LOG.info("Found expected output in logging event {}", matchedEvent);
}
}
if (outContentString.contains(terminateAfterString)
|| errContentString.contains(terminateAfterString)
|| testPassedFromLog4j) {
expectedStringSeen = true;
LOG.info("Found expected output in redirected streams");
// send "stop" command to command line interface
LOG.info("RunWithArgs: request runner to stop");
runner.sendStop();
// wait for the thread to stop
try {
runner.join(30000);
} catch (InterruptedException e) {
LOG.warn("Interrupted while stopping runner", e);
}
LOG.warn("RunWithArgs runner stopped.");
} else {
// check if thread died
if (!runner.isAlive()) {
if (runner.getReturnValue() != 0) {
Assert.fail(
"Runner thread died before the test was finished. Return value = "
+ runner.getReturnValue());
} else {
LOG.info("Runner stopped earlier than expected with return value = 0");
}
// leave loop: the runner died, so we can not expect new strings to show up.
break;
}
}
} while (!expectedStringSeen && System.currentTimeMillis() < deadline);
sendOutput();
Assert.assertTrue(
"During the timeout period of "
+ START_TIMEOUT_SECONDS
+ " seconds the "
+ "expected string did not show up",
expectedStringSeen);
// check for 0 return code
Assert.assertEquals("Expected return value", returnCode, runner.getReturnValue());
LOG.info("Test was successful");
}