Github user tzulitai commented on a diff in the pull request:
https://github.com/apache/flink/pull/3562#discussion_r106775966
--- Diff:
flink-runtime/src/test/java/org/apache/flink/runtime/state/StateBackendTestBase.java
---
@@ -162,22 +176,422 @@ protected CheckpointStreamFactory
createStreamFactory() throws Exception {
}
@Test
+ public void testBackendUsesRegisteredKryoDefaultSerializer() throws
Exception {
+ CheckpointStreamFactory streamFactory = createStreamFactory();
+ Environment env = new DummyEnvironment("test", 1, 0);
+ AbstractKeyedStateBackend<Integer> backend =
createKeyedBackend(IntSerializer.INSTANCE, env);
+
+ // cast because our test serializer is not typed to TestPojo
+ env.getExecutionConfig()
+ .addDefaultKryoSerializer(TestPojo.class,
(Class) ExceptionThrowingTestSerializer.class);
+
+ TypeInformation<TestPojo> pojoType = new
GenericTypeInfo<>(TestPojo.class);
+
+ // make sure that we are in fact using the KryoSerializer
+ assertTrue(pojoType.createSerializer(env.getExecutionConfig())
instanceof KryoSerializer);
+
+ pojoType.createSerializer(env.getExecutionConfig());
--- End diff --
I think this is redundant.
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