Ignore declaring class when equal to class name

Author: mpkorstanje

junit-platform-engine/src/main/java/org/junit/platform/engine/discovery/MethodSelector.java

@@ -120,7 +120,7 @@ private MethodSelector(@Nullable ClassLoader classLoader, String className, Stri
 		this.className = className;
 		this.methodName = methodName;
 		this.parameterTypeNames = parameterTypeNames;
-		this.declaringClassName = declaringClassName;
+		this.declaringClassName = className.equals(declaringClassName) ? null : declaringClassName;
 	}
 
 	/**

platform-tests/src/test/java/org/junit/platform/engine/discovery/MethodSelectorTests.java

@@ -93,6 +93,14 @@ void distinguishesDeclaringClass() throws Exception {
 		assertThat(childMethodSelector).isNotEqualTo(parentMethodSelector);
 	}
 
+	@Test
+	void ignoresDeclaringClassWhenEqualToClassname() throws Exception {
+		var selectorByMethod = new MethodSelector(TestCase.class,
+			TestCase.class.getDeclaredMethod("method", int.class, boolean.class));
+		var selectorByName = new MethodSelector(TestCase.class, "method", int.class, boolean.class);
+		assertThat(selectorByMethod).isEqualTo(selectorByName);
+	}
+
 	private static class ParentTestCase {
 
 		@SuppressWarnings("unused")