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From GitBox <...@apache.org>
Subject [GitHub] [flink] zentol commented on a change in pull request #8534: [FLINK-12614][yarn] Refactor test to not do assertions in @After methods
Date Tue, 28 May 2019 10:30:30 GMT
zentol commented on a change in pull request #8534: [FLINK-12614][yarn] Refactor test to not
do assertions in @After methods 
URL: https://github.com/apache/flink/pull/8534#discussion_r288034455
 
 

 ##########
 File path: flink-yarn-tests/src/test/java/org/apache/flink/yarn/YarnTestBase.java
 ##########
 @@ -212,30 +212,45 @@ public void checkClusterEmpty() {
 	 * Sleep a bit between the tests (we are re-using the YARN cluster for the tests).
 	 */
 	@After
-	public void sleep() throws IOException, YarnException {
-		Deadline deadline = Deadline.now().plus(Duration.ofSeconds(10));
+	public void shutdownYarnClient() {
+		yarnClient.stop();
+	}
 
-		boolean isAnyJobRunning = yarnClient.getApplications().stream()
-			.anyMatch(YarnTestBase::isApplicationRunning);
+	protected void runTest(RunnableWithException test) {
+		Throwable testFailure = null;
+		try {
+			test.run();
+		} catch (Throwable t) {
+			testFailure = t;
+		}
 
-		while (deadline.hasTimeLeft() && isAnyJobRunning) {
-			try {
-				Thread.sleep(500);
-			} catch (InterruptedException e) {
-				Assert.fail("Should not happen");
-			}
-			isAnyJobRunning = yarnClient.getApplications().stream()
+		try {
+			Deadline deadline = Deadline.now().plus(Duration.ofSeconds(10));
+
+			boolean isAnyJobRunning = yarnClient.getApplications().stream()
 				.anyMatch(YarnTestBase::isApplicationRunning);
-		}
 
-		if (isAnyJobRunning) {
-			final List<String> runningApps = yarnClient.getApplications().stream()
-				.filter(YarnTestBase::isApplicationRunning)
-				.map(app -> "App " + app.getApplicationId() + " is in state " + app.getYarnApplicationState()
+ '.')
-				.collect(Collectors.toList());
-			if (!runningApps.isEmpty()) {
-				Assert.fail("There is at least one application on the cluster that is not finished."
+ runningApps);
+			while (deadline.hasTimeLeft() && isAnyJobRunning) {
+				try {
+					Thread.sleep(500);
+				} catch (InterruptedException e) {
+					Assert.fail("Should not happen");
+				}
+				isAnyJobRunning = yarnClient.getApplications().stream()
+					.anyMatch(YarnTestBase::isApplicationRunning);
+			}
+
+			if (isAnyJobRunning) {
+				final List<String> runningApps = yarnClient.getApplications().stream()
+					.filter(YarnTestBase::isApplicationRunning)
+					.map(app -> "App " + app.getApplicationId() + " is in state " + app.getYarnApplicationState()
+ '.')
+					.collect(Collectors.toList());
+				if (!runningApps.isEmpty()) {
+					Assert.fail("There is at least one application on the cluster that is not finished."
+ runningApps);
+				}
 			}
+		} catch (Throwable t) {
+			throw new AssertionError(ExceptionUtils.firstOrSuppressed(t, testFailure));
 
 Review comment:
   ah, now I see what you mean.
   If this try block doesn't throw an exception we never re-throw the original failure.  That
is indeed a defect, changing it.

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