Github user uce commented on a diff in the pull request:
https://github.com/apache/flink/pull/2371#discussion_r74893581
--- Diff:
flink-core/src/test/java/org/apache/flink/configuration/DelegatingConfigurationTest.java
---
@@ -88,4 +90,49 @@ private String typeParamToString(Class<?>[] classes) {
assertTrue("Foo method '" +
configurationMethod.getName() + "' has not been wrapped correctly in
DelegatingConfiguration wrapper", hasMethod);
}
}
+
+ @Test
+ public void testDelegationConfigurationWithNullPrefix() {
+
+ Configuration backingConf = new Configuration();
+ backingConf.setValueInternal("test-key", "value");
+
+ DelegatingConfiguration configuration = new
DelegatingConfiguration(
+ backingConf, null);
+ Set<String> keySet = configuration.keySet();
+
+ assertEquals(keySet, backingConf.keySet());
+
--- End diff --
empty line
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