abhishekrb19 commented on code in PR #16627:
URL: https://github.com/apache/druid/pull/16627#discussion_r1645243107
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services/src/test/java/org/apache/druid/cli/TestValidateIncompatibleCentralizedDatasourceSchemaConfig.java:
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@@ -51,6 +52,9 @@ public
TestValidateIncompatibleCentralizedDatasourceSchemaConfig(ServerRunnable
this.runnable = runnable;
}
+ // It seems that setting the system properties is causing MainTest to fail.
+ // Ignoring this test until there is a better way to set the properties.
+ @Ignore
@Test(expected = RuntimeException.class)
Review Comment:
I think this line is the problem. Looking at this test, an exception is
expected to be thrown when the runnable gets the system properties in L68-69.
After an exception is thrown, it doesn't clear the properties set from
L71-73 causing the incompatible system properties to be "leaked".
A couple of points regarding fixing this test:
1. Instead of setting system-wide properties that can affect other tests
broadly, you can bind the supplied properties to the Guice injector instance.
For example, please see
[SqlModuleTest.java](https://github.com/apache/druid/blob/master/sql/src/test/java/org/apache/druid/sql/guice/SqlModuleTest.java#L188).
This way, the properties would only be scoped to this test injector.
2. One of the problems with expected exceptions `@Test(expected =
Foo.class)` is that it doesn't tell us which line of code is expected to throw
the exception. We should use `Assert.assertThrows()` with a narrow code block
around lines 68-69.
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