malformed parameterized: meta arguments source support (IDEA-177110)

plugins/junit/src/com/intellij/execution/junit/codeInsight/JUnit5MalformedParameterizedInspection.kt

@@ -73,7 +73,7 @@ class JUnit5MalformedParameterizedInspection : BaseJavaBatchLocalInspectionTool(
 
           var noMultiArgsProvider = true
           var source : PsiAnnotation? = null
-          AnnotationUtil.findAnnotations(method, JUnitCommonClassNames.SOURCE_ANNOTATIONS).forEach {
+          MetaAnnotationUtil.findMetaAnnotations(method, JUnitCommonClassNames.SOURCE_ANNOTATIONS).forEach {
             when (it.qualifiedName) {
               JUnitCommonClassNames.ORG_JUNIT_JUPITER_PARAMS_PROVIDER_METHOD_SOURCE -> {
                 checkMethodSource(method, it)

plugins/junit/test/com/intellij/execution/junit/codeInsight/JUnit5MalformedParameterizedTest.java

@@ -54,6 +54,9 @@ public class JUnit5MalformedParameterizedTest extends LightInspectionTestCase {
                         "public @interface CsvSource {String[] value();}");
     addEnvironmentClass("package org.junit.jupiter.params.provider;\n" +
                         "public interface Arguments {static Arguments of(Object... arguments){}}\n");
+
+    addEnvironmentClass("package org.junit.jupiter.params.provider;\n" +
+                        "public @interface ArgumentsSource {}");
   }
 
   public void testMalformedSources() { doTest(); }

plugins/junit/testData/codeInsight/malformedParameterized/MalformedSources.java

@@ -64,3 +64,12 @@ class ParameterizedTestsDemo {
   @CsvSource({"foo, 1"})
   void testWithCsvSource(String first, int second) {}
 }
+
+@org.junit.jupiter.params.provider.ArgumentsSource()
+@interface CustomSource { }
+
+class CustomArgProviderTest {
+  @ParameterizedTest
+  @CustomSource
+  void jsonSourceTest(String param) { }
+}