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// Copyright 2000-2021 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
package org.jetbrains.kotlin.idea.lightClasses;
import com.intellij.psi.PsiClass;
import com.intellij.testFramework.LightProjectDescriptor;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.kotlin.asJava.classes.KtLightClass;
import org.jetbrains.kotlin.asJava.classes.KtLightClassForSourceDeclaration;
import org.jetbrains.kotlin.config.JvmDefaultMode;
import org.jetbrains.kotlin.idea.caches.lightClasses.KtLightClassForDecompiledDeclaration;
import org.jetbrains.kotlin.idea.test.KotlinLightCodeInsightFixtureTestCase;
import org.jetbrains.kotlin.idea.test.KotlinWithJdkAndRuntimeLightProjectDescriptor;
import org.jetbrains.kotlin.psi.KtClassOrObject;
import org.junit.internal.runners.JUnit38ClassRunner;
import org.junit.runner.RunWith;
@RunWith(JUnit38ClassRunner.class)
public class LightClassEqualsTest extends KotlinLightCodeInsightFixtureTestCase {
@NotNull
@Override
protected LightProjectDescriptor getProjectDescriptor() {
return KotlinWithJdkAndRuntimeLightProjectDescriptor.INSTANCE;
}
public void testEqualsForExplicitDeclaration() throws Exception {
myFixture.configureByText("a.kt", "class A");
PsiClass theClass = myFixture.getJavaFacade().findClass("A");
assertNotNull(theClass);
assertInstanceOf(theClass, KtLightClassForSourceDeclaration.class);
doTestEquals(((KtLightClass) theClass).getKotlinOrigin());
}
public void testEqualsForDecompiledClass() throws Exception {
myFixture.configureByText("a.kt", "");
PsiClass theClass = myFixture.getJavaFacade().findClass("kotlin.Unit");
assertNotNull(theClass);
assertInstanceOf(theClass, KtLightClassForDecompiledDeclaration.class);
doTestEquals(((KtLightClass) theClass).getKotlinOrigin());
}
static void doTestEquals(@Nullable KtClassOrObject origin) {
assertNotNull(origin);
PsiClass lightClass1 = KtLightClassForSourceDeclaration.Companion.createNoCache(origin, JvmDefaultMode.DEFAULT, true);
PsiClass lightClass2 = KtLightClassForSourceDeclaration.Companion.createNoCache(origin, JvmDefaultMode.DEFAULT, true);
assertNotNull(lightClass1);
assertNotNull(lightClass2);
// If the same light class is returned twice, it means some caching was introduced and this test no longer makes sense.
// Any other way of obtaining light classes should be used, which bypasses caches
assertNotSame(lightClass1, lightClass2);
assertEquals(lightClass1, lightClass2);
assertEquals(lightClass1.hashCode(), lightClass2.hashCode());
}
}
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