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Improve diagnostics for flaky ParallelApplicationEventsIntegrationTests

This commit is contained in:
Sam Brannen 2021-02-12 12:02:37 +01:00
parent 566ff54782
commit 5d70aaacef
1 changed files with 5 additions and 2 deletions
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7
spring-test/src/test/java/org/springframework/test/context/junit/jupiter/event/ParallelApplicationEventsIntegrationTests.java
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@ -75,13 +75,16 @@ class ParallelApplicationEventsIntegrationTests {
assertThat(payloads).hasSize(10);
assertThat(testNames).hasSize(10);
int availableProcessors = Runtime.getRuntime().availableProcessors();
// Skip the following assertion entirely if too few processors are available
// to the current JVM.
if (Runtime.getRuntime().availableProcessors() >= 4) {
if (availableProcessors >= 6) {
// There are probably 10 different thread names on a developer's machine,
// but we really just want to assert that at least two different threads
// were used, since the CI server often has fewer threads available.
assertThat(threadNames).hasSizeGreaterThanOrEqualTo(2);
assertThat(threadNames)
.as("number of threads used with " + availableProcessors + " available processors")
.hasSizeGreaterThanOrEqualTo(2);
}
}