Checking that light classes agree with their delegates

compiler/tests/org/jetbrains/jet/asJava/KotlinLightClassCoherenceTest.java

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+/*
+ * Copyright 2010-2013 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.jet.asJava;
+
+import com.google.common.collect.Lists;
+import com.intellij.psi.PsiClass;
+import com.intellij.psi.PsiModifier;
+import com.intellij.psi.search.GlobalSearchScope;
+import org.jetbrains.annotations.NotNull;
+
+import java.io.File;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.List;
+
+
+public class KotlinLightClassCoherenceTest extends KotlinAsJavaTestBase {
+
+    @Override
+    protected List<File> getKotlinSourceRoots() {
+        return Lists.newArrayList(
+                new File("compiler/testData/asJava/lightClasses/Declared.kt"),
+                new File("compiler/testData/asJava/lightClasses/Package.kt")
+        );
+    }
+
+    @NotNull
+    protected PsiClass doTest() {
+        return doTest("test." + getTestName(false));
+    }
+
+    @NotNull
+    protected PsiClass doTest(String qualifiedName) {
+        KotlinLightClass psiClass = (KotlinLightClass) finder.findClass(qualifiedName, GlobalSearchScope.allScope(getProject()));
+        assertNotNull(psiClass);
+
+        assertModifiersCoherent(psiClass);
+
+        assertPropertyCoherent(psiClass, "isInterface");
+        assertPropertyCoherent(psiClass, "isAnnotationType");
+        assertPropertyCoherent(psiClass, "isEnum");
+        assertPropertyCoherent(psiClass, "hasTypeParameters");
+        assertPropertyCoherent(psiClass, "isDeprecated");
+
+        return psiClass;
+    }
+
+    private static void assertModifiersCoherent(KotlinLightClass lightClass) {
+        PsiClass delegate = lightClass.getDelegate();
+        for (String modifier : PsiModifier.MODIFIERS) {
+            assertEquals("Incoherent modifier: " + modifier,
+                         delegate.hasModifierProperty(modifier),
+                         lightClass.hasModifierProperty(modifier));
+        }
+    }
+
+    private static void assertPropertyCoherent(KotlinLightClass lightClass, String methodName) {
+        Class<?> reflect = PsiClass.class;
+        try {
+            Method method = reflect.getMethod(methodName);
+            Object lightResult = method.invoke(lightClass);
+            Object delegateResult = method.invoke(lightClass.getDelegate());
+            assertEquals("Result of method " + methodName + "() differs in light class and its delegate", delegateResult, lightResult);
+        }
+        catch (NoSuchMethodException e) {
+            throw new AssertionError(e);
+        }
+        catch (InvocationTargetException e) {
+            throw new AssertionError(e);
+        }
+        catch (IllegalAccessException e) {
+            throw new AssertionError(e);
+        }
+    }
+
+    public void testPackage() throws Exception {
+        doTest("test.namespace");
+    }
+
+    public void testNoModifiers() throws Exception {
+        doTest();
+    }
+
+    public void testPublic() throws Exception {
+        doTest();
+    }
+
+    public void testPrivate() throws Exception {
+        doTest();
+    }
+
+    public void testInternal() throws Exception {
+        doTest();
+    }
+
+    public void testInnerPublic() throws Exception {
+        doTest("test.Outer.Public");
+    }
+
+    public void testInnerProtected() throws Exception {
+        doTest("test.Outer.Protected");
+    }
+
+    public void testInnerInternal() throws Exception {
+        doTest("test.Outer.Internal");
+    }
+
+    public void testInnerPrivate() throws Exception {
+        doTest("test.Outer.Private");
+    }
+
+    public void testAbstract() throws Exception {
+        doTest();
+    }
+
+    public void testOpen() throws Exception {
+        doTest();
+    }
+
+    public void testFinal() throws Exception {
+        doTest();
+    }
+
+    public void testAnnotation() throws Exception {
+        doTest();
+    }
+
+    public void testEnum() throws Exception {
+        doTest();
+    }
+
+    public void testTrait() throws Exception {
+        doTest();
+    }
+
+    public void testDeprectaed() throws Exception {
+        doTest();
+    }
+
+    public void testDeprecatedWithBrackets() throws Exception {
+        doTest();
+    }
+}