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int-layer/target/surefire-reports/com.example.service.unit_testing.QuickReplyContentServiceTest.txt
2026-02-23 06:51:36 +00:00

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Test set: com.example.service.unit_testing.QuickReplyContentServiceTest
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Tests run: 3, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.583 s <<< FAILURE! -- in com.example.service.unit_testing.QuickReplyContentServiceTest
com.example.service.unit_testing.QuickReplyContentServiceTest.getQuickReplies_success -- Time elapsed: 0.122 s <<< ERROR!
org.mockito.exceptions.misusing.InvalidUseOfMatchersException:
Misplaced or misused argument matcher detected here:
-> at com.example.service.unit_testing.GeminiClientServiceTest.generateContent_whenApiResponseIsNull_throwsGeminiClientException(GeminiClientServiceTest .java:72)
-> at com.example.service.unit_testing.GeminiClientServiceTest.generateContent_whenApiResponseIsNull_throwsGeminiClientException(GeminiClientServiceTest .java:72)
-> at com.example.service.unit_testing.GeminiClientServiceTest.generateContent_whenApiResponseIsNull_throwsGeminiClientException(GeminiClientServiceTest .java:72)
You cannot use argument matchers outside of verification or stubbing.
Examples of correct usage of argument matchers:
when(mock.get(anyInt())).thenReturn(null);
doThrow(new RuntimeException()).when(mock).someVoidMethod(any());
verify(mock).someMethod(contains("foo"))
This message may appear after an NullPointerException if the last matcher is returning an object
like any() but the stubbed method signature expect a primitive argument, in this case,
use primitive alternatives.
when(mock.get(any())); // bad use, will raise NPE
when(mock.get(anyInt())); // correct usage use
Also, this error might show up because you use argument matchers with methods that cannot be mocked.
Following methods *cannot* be stubbed/verified: final/private/equals()/hashCode().
Mocking methods declared on non-public parent classes is not supported.
at com.example.service.unit_testing.QuickReplyContentServiceTest.setUp(QuickReplyContentServiceTest.java:49)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)