divijvaidya commented on PR #15030:
URL: https://github.com/apache/kafka/pull/15030#issuecomment-1871243698
Hey @sciclon2 , try something like this
```
@ClusterTest
public void testAdminConfigCustomTimeouts() throws Exception {
int defaultApiTimeoutMs = 240000;
int requestTimeoutMs = 120000;
Path adminConfigPath = tempAdminConfig(defaultApiTimeoutMs,
requestTimeoutMs);
try (final MockedStatic<Admin> mockedAdmin =
Mockito.mockStatic(Admin.class)) {
LeaderElectionCommand.main(
"--bootstrap-server", cluster.bootstrapServers(),
"--election-type", "unclean", "--all-topic-partitions",
"--admin.config", adminConfigPath.toString()
);
ArgumentCaptor<Properties> argumentCaptor =
ArgumentCaptor.forClass(Properties.class);
mockedAdmin.verify(() -> Admin.create(argumentCaptor.capture()));
// verify that properties provided to admin client are the
overridden properties
final Properties actualProps = argumentCaptor.getValue();
assertEquals(actualProps.get(AdminClientConfig.REQUEST_TIMEOUT_MS_CONFIG),
requestTimeoutMs);
assertEquals(actualProps.get(AdminClientConfig.DEFAULT_API_TIMEOUT_MS_CONFIG),
defaultApiTimeoutMs);
}
}
```
We are using Mockito to mock a static method. You were getting a
NullPointerException because you were trying to mock a static method with
incorrect syntax. Note that we are also using ArgumentCapture to verify the
arguments that are being passed while creation of admin client.
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