KAFKA-15148: Some integration tests are running as unit tests

[eziosudo]

Change these tests by adding @tag("integration") and @category(IntegrationTest.class).
./streams/build/reports/tests/unitTest/classes/org.apache.kafka.streams.integration.MetricsReporterIntegrationTest.html ./streams/build/reports/tests/unitTest/classes/org.apache.kafka.streams.integration.LagFetchIntegrationTest.html ./streams/build/reports/tests/unitTest/classes/org.apache.kafka.streams.integration.OptimizedKTableIntegrationTest.html ./streams/build/reports/tests/unitTest/classes/org.apache.kafka.streams.integration.RegexSourceIntegrationTest.html ./streams/build/reports/tests/unitTest/classes/org.apache.kafka.streams.integration.PurgeRepartitionTopicIntegrationTest.html ./streams/build/reports/tests/unitTest/classes/org.apache.kafka.streams.integration.StandbyTaskCreationIntegrationTest.html ./streams/build/reports/tests/unitTest/classes/org.apache.kafka.streams.integration.MetricsIntegrationTest.html ./streams/build/reports/tests/unitTest/classes/org.apache.kafka.streams.integration.KTableKTableForeignKeyInnerJoinMultiIntegrationTest.html ./streams/build/reports/tests/unitTest/classes/org.apache.kafka.streams.integration.KTableKTableForeignKeyJoinDistributedTest.html ./streams/build/reports/tests/unitTest/classes/org.apache.kafka.streams.integration.NamedTopologyIntegrationTest.html ./streams/build/reports/tests/unitTest/classes/org.apache.kafka.streams.integration.QueryableStateIntegrationTest.html ./streams/build/reports/tests/unitTest/classes/org.apache.kafka.streams.integration.KTableEfficientRangeQueryTest.html ./connect/runtime/build/reports/tests/unitTest/classes/org.apache.kafka.connect.integration.StartAndStopCounterTest.html ./connect/runtime/build/reports/tests/unitTest/classes/org.apache.kafka.connect.integration.StartAndStopLatchTest.html

"stream" module's unitTest time reduced from 25 minutes to 17 minutes, "connect" module's unitTest time reduced from 18 minutes to 12 minutes.

Committer Checklist (excluded from commit message)

• Verify design and implementation
• Verify test coverage and CI build status
• Verify documentation (including upgrade notes)

[eziosudo]

@divijvaidya Hi, can you help to review this PR?

[divijvaidya]

Thank you for addressing the comments. Are the results in the description updated after the latest change? If not, can you please update them. My motivation of asking this is to ensure that we are not accidentally removing the tests from running in either unitTest or integTests.

[eziosudo]

Thank you for addressing the comments. Are the results in the description updated after the latest change? If not, can you please update them. My motivation of asking this is to ensure that we are not accidentally removing the tests from running in either unitTest or integTests.

I agree. We shall be careful with every merge. So I run all the tests agian.

These are integration tests in trunk branch after running './gradlew unitTest':

In my branch I run './gradlew unitTest' then filter integration tests and got nothing, which means integration cases are excluded.

After run './gradle integrationTest' in my branch, I get all the integration tests I changed in this PR, which means they are all included.

[divijvaidya]

Thank you for the change. I have verified that the modified tests are running as part of the CI as well. Merging in.