Kafka Connect: Capture integration test logs in CI#16504
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The integration tests drive their workloads through a testcontainers docker compose stack (kafka, connect, iceberg REST catalog, minio). The Kafka Connect coordinator does the actual snapshot commit work, and its logs live in the Connect container's stdout — never in the JVM test worker. So when an Awaitility timeout surfaced as a bare AssertionError in CI, there was no way to see why the commit did not happen.
Attach a withLogConsumer for the connect, kafka, and iceberg services in TestContext, writing each service's container output to ${rootDir}/build/testlogs/<service>-container.log. The location is passed in from the integrationTest Gradle task via a `dockerLogDir` system property and falls back to a no-op when unset (so the constructor still works under IDEs or ad-hoc runs). The Kafka Connect CI artifact upload already covers `**/build/testlogs`, so on failure the docker logs come along automatically.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…sts in CI
The `integrationTest` Gradle task carried no `addTestOutputListener` and no `testLogging` block, so test-process stdout/stderr was lost and the Gradle console output for CI showed only a bare `FAILED` line and the assertion source location, with no stack trace or AssertJ description. The Kafka Connect CI workflow uploaded only `**/build/testlogs`, which is populated by the unit test task in the root `build.gradle` but not by `integrationTest`.
Mirror the existing `test` block from the root `build.gradle` inside the `integrationTest` task: stream per-test output to `${rootDir}/build/testlogs/${project.name}-integration.log` (a separate file from the unit-test log), and emit verbose `testLogging` events with `exceptionFormat "full"` on CI. Extend the Kafka Connect CI artifact upload to also include `**/build/reports/tests/integrationTest` so the HTML reports with per-test stack traces are preserved.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
Split out from #16438 per reviewer request. Two related improvements to integration-test observability in CI:
build/testlogs/<service>-container.logvia testcontainerswithLogConsumer, so coordinator-side failures are visible when an Awaitility timeout surfaces as a bareAssertionError.testLogging/addTestOutputListenerconfiguration on theintegrationTestGradle task, and extend the Kafka Connect CI artifact upload to also include**/build/reports/tests/integrationTest.