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Reject blank value for @SuiteDisplayName #4810

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Reject blank value for @SuiteDisplayName#4810
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component: Platformstatus: in progresstheme: diagnosticstheme: suitestype: enhancement
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6.0.0-RC1
@sbrannen

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@sbrannen
sbrannen
opened on Aug 4, 2025

Overview

While investigating #4714, I noticed that we currently ignore a blank value for @SuiteDisplayName.

junit-framework/junit-platform-suite-engine/src/main/java/org/junit/platform/suite/engine/SuiteTestDescriptor.java

Lines 143 to 150 in 99380e0

private static String getSuiteDisplayName(Class<?> testClass) {
// @formatter:off
return findAnnotation(testClass, SuiteDisplayName.class)
.map(SuiteDisplayName::value)
.filter(StringUtils::isNotBlank)
.orElse(testClass.getSimpleName());
// @formatter:on
}

However, the Javadoc for org.junit.platform.suite.api.SuiteDisplayName.value() clearly states that the value is:

never blank or consisting solely of whitespace

We should therefore reject blank values for @SuiteDisplayName in 6.0, along the lines of similar changes in 6.0.

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