cadonna commented on a change in pull request #9273:
URL: https://github.com/apache/kafka/pull/9273#discussion_r501802252
##########
File path: streams/src/test/java/org/apache/kafka/streams/KafkaStreamsTest.java
##########
@@ -617,7 +619,19 @@ public void
shouldThrowExceptionSettingUncaughtExceptionHandlerNotInCreateState(
final KafkaStreams streams = new
KafkaStreams(getBuilderWithSource().build(), props, supplier, time);
streams.start();
try {
- streams.setUncaughtExceptionHandler(null);
+
streams.setUncaughtExceptionHandler((Thread.UncaughtExceptionHandler) null);
+ fail("Should throw IllegalStateException");
+ } catch (final IllegalStateException e) {
+ // expected
+ }
+ }
Review comment:
Sorry, my bad! It doesn't matter whether it is called or not, since the
`IllegalStateException` is thrown.
##########
File path: streams/src/test/java/org/apache/kafka/streams/KafkaStreamsTest.java
##########
@@ -617,7 +619,19 @@ public void
shouldThrowExceptionSettingUncaughtExceptionHandlerNotInCreateState(
final KafkaStreams streams = new
KafkaStreams(getBuilderWithSource().build(), props, supplier, time);
streams.start();
try {
- streams.setUncaughtExceptionHandler(null);
+
streams.setUncaughtExceptionHandler((Thread.UncaughtExceptionHandler) null);
+ fail("Should throw IllegalStateException");
+ } catch (final IllegalStateException e) {
+ // expected
+ }
+ }
+
+ @Test
+ public void
shouldThrowExceptionSettingStreamsUncaughtExceptionHandlerNotInCreateState() {
Review comment:
Actually, there are two tests missing. With the test you added, you test
the `else` branch on line 400 in `KafkaStreams`. But you do not test the
`then` branch of the same `if` statement and within the `then` branch there are
again a `then` branch and a `else` branch to test.
If you do without the inner `else` branch as I proposed in another comment,
you need to test the exception that is thrown when `null` is passed to the
method.
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