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Add awaitility module: testing async @Async/@Scheduled/@KafkaListener code without Thread.sleep

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Covers replacing Thread.sleep with await() across a void @Async method, an
@EmbeddedKafka-backed @KafkaListener, and an already-running @Scheduled job;
verifies Awaitility 4.3.0's real defaults (10s timeout, 100ms poll interval)
and its default-uncaught-exception-handler swap directly against the jar;
and documents a real pom.xml trap where Boot 4.1.1 split Kafka's
autoconfiguration (spring-boot-kafka) out of spring-kafka itself, which
silently leaves @KafkaListener beans with no running container.
This commit is contained in:
Claude
2026-10-08 15:18:58 +00:00
parent 09631dcaab
commit a7b76243fa
31 changed files with 900 additions and 0 deletions
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awaitility/docs/output/01-sleep-guesses-wrong.txt
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== Thread.sleep(100) against a confirmation that actually takes 220ms (real failure, test since removed) ==
$ mvn -B -Dtest=SleepGuessesWrongTest test
[ERROR] Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 3.568 s <<< FAILURE! -- in com.ankurm.awaitility.SleepGuessesWrongTest
com.ankurm.awaitility.SleepGuessesWrongTest.confirmationArrivesWithin100ms -- Time elapsed: 1.084 s <<< FAILURE!
java.lang.AssertionError:
Expecting actual not to be null
at com.ankurm.awaitility.SleepGuessesWrongTest.confirmationArrivesWithin100ms(SleepGuessesWrongTest.java:27)