java config_error ai_generated true

org.junit.jupiter.api.extension.ParameterResolutionException: No ParameterResolver registered for parameter [int arg0] in constructor

ID: java/junit-parameterized-test-no-source

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80%Fix Rate
84%Confidence
0Evidence
2025-03-05First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
8+ active — — —

Root Cause

Parameterized test method or constructor has parameters but no @ValueSource or other source annotation.

generic

中文

参数化测试方法或构造函数有参数，但缺少 @ValueSource 或其他源注解。

Workarounds

  1. 95% success Add @ValueSource with values 
    @ParameterizedTest
@ValueSource(ints = {1, 2, 3})
void testWithInts(int num) {
    assertTrue(num > 0);
}
  2. 90% success Use @CsvSource for multiple parameters 
    @ParameterizedTest
@CsvSource({"1, foo", "2, bar"})
void testWithCsv(int id, String name) {
    assertNotNull(name);
}

Dead Ends

Common approaches that don't work:

  1. Adding @ParameterizedTest without source 80% fail

    JUnit doesn't know where to get parameters from.

  2. Using @Test instead of @ParameterizedTest 60% fail

    Test won't be parameterized and will fail with missing arguments.