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Record test times and slowests tests #4140

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Merged
dondonz merged 2 commits into from
Oct 15, 2025
+40 −0
Merged

Record test times and slowests tests #4140

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Test info
bbakerman Oct 15, 2025
b502921
Merge remote-tracking branch 'origin/master' into record-test-times
bbakerman Oct 15, 2025
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40 changes: 40 additions & 0 deletions build.gradle
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Original file line number Diff line number Diff line change
Expand Up @@ -309,6 +309,10 @@ artifacts {
}

List<TestDescriptor> failedTests = []
Map<String, Integer> testsAndTime = [:]
Map<String, Integer> testClassesAndTime = [:]
int testCount = 0
long testTime = 0L

tasks.withType(Test) {
useJUnitPlatform()
Expand All @@ -322,9 +326,19 @@ tasks.withType(Test) {
dependsOn "jmhClasses"

afterTest { TestDescriptor descriptor, TestResult result ->
testCount++
if (result.getFailedTestCount() > 0) {
failedTests.add(descriptor)
}
def ms = (int) (result.endTime - result.startTime)
testTime += ms
String className = descriptor.className ?: "unknown"
String name = className + "." + descriptor.displayName
if (ms > 500) {
testsAndTime[name] = ms
testClassesAndTime.compute(className) { k, v -> v == null ? ms : v + ms }
println "\tTest '$name' took ${ms}ms"
}
}
}

Expand All @@ -349,6 +363,10 @@ test.dependsOn testWithJava11
* See https://github.com/gradle/gradle/issues/20151
*/
gradle.buildFinished {
println "\n\n"
println "============================"
println "$testCount tests run in $testTime ms"
println "============================"
if (!failedTests.isEmpty()) {
println "\n\n"
println "============================"
Expand All @@ -359,6 +377,28 @@ gradle.buildFinished {
}
println "============================"
}
// slowest tests
println "\n\n"
println "============================"
println "Top 20 slowest test classes"
println "============================"
showTestResults(testClassesAndTime,20) { e ->
println "\tTest class ${e.key} took ${e.value}ms"
}
println "\n\n"
println "============================"
println "Top 50 slowest tests"
println "============================"
showTestResults(testsAndTime,50) { e ->
println "\tTest ${e.key} took ${e.value}ms"
}
}

static private showTestResults(Map<String, Integer> testMap, int limit, Closure closure) {
testMap.entrySet().stream()
.sorted { e1, e2 -> e2.getValue() - e1.getValue() }
.limit(limit)
.forEach(closure)
}


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