| /******************************************************************************* |
| * Copyright (c) 2000, 2020 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.jdt.ui.tests.quickfix; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import java.util.Hashtable; |
| |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| |
| import org.eclipse.jdt.testplugin.JavaProjectHelper; |
| import org.eclipse.jdt.testplugin.TestOptions; |
| |
| import org.eclipse.jface.preference.IPreferenceStore; |
| |
| import org.eclipse.jdt.core.ICompilationUnit; |
| import org.eclipse.jdt.core.IJavaProject; |
| import org.eclipse.jdt.core.IPackageFragment; |
| import org.eclipse.jdt.core.IPackageFragmentRoot; |
| import org.eclipse.jdt.core.JavaCore; |
| import org.eclipse.jdt.core.dom.ASTNode; |
| import org.eclipse.jdt.core.dom.CompilationUnit; |
| import org.eclipse.jdt.core.dom.FieldDeclaration; |
| import org.eclipse.jdt.core.dom.ITypeBinding; |
| import org.eclipse.jdt.core.dom.MethodDeclaration; |
| import org.eclipse.jdt.core.dom.NodeFinder; |
| import org.eclipse.jdt.core.dom.TypeDeclaration; |
| import org.eclipse.jdt.core.formatter.DefaultCodeFormatterConstants; |
| import org.eclipse.jdt.core.manipulation.TypeKinds; |
| |
| import org.eclipse.jdt.internal.core.manipulation.dom.ASTResolving; |
| |
| import org.eclipse.jdt.ui.PreferenceConstants; |
| import org.eclipse.jdt.ui.tests.core.rules.ProjectTestSetup; |
| |
| import org.eclipse.jdt.internal.ui.JavaPlugin; |
| |
| /** |
| * |
| */ |
| public class UtilitiesTest extends QuickFixTest { |
| |
| @Rule |
| public ProjectTestSetup projectSetup = new ProjectTestSetup(); |
| |
| private IJavaProject fJProject1; |
| private IPackageFragmentRoot fSourceFolder; |
| |
| @Before |
| public void setUp() throws Exception { |
| Hashtable<String, String> options= TestOptions.getDefaultOptions(); |
| options.put(DefaultCodeFormatterConstants.FORMATTER_TAB_CHAR, JavaCore.SPACE); |
| options.put(DefaultCodeFormatterConstants.FORMATTER_TAB_SIZE, "4"); |
| options.put(JavaCore.COMPILER_PB_UNUSED_IMPORT, JavaCore.ERROR); |
| JavaCore.setOptions(options); |
| |
| IPreferenceStore store= JavaPlugin.getDefault().getPreferenceStore(); |
| store.setValue(PreferenceConstants.CODEGEN_ADD_COMMENTS, false); |
| |
| fJProject1= projectSetup.getProject(); |
| |
| fSourceFolder= JavaProjectHelper.addSourceContainer(fJProject1, "src"); |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| JavaProjectHelper.clear(fJProject1, projectSetup.getDefaultClasspath()); |
| } |
| |
| @Test |
| public void testGuessBindingForTypeReference() throws Exception { |
| IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null); |
| StringBuilder buf= new StringBuilder(); |
| buf.append("package test1;\n"); |
| buf.append("import java.util.ArrayList;\n"); |
| buf.append("import java.util.HashMap;\n"); |
| buf.append("public class E<T> {\n"); |
| buf.append("\n"); // array types |
| buf.append(" public class F<U> {}\n"); |
| buf.append(" X[] x1= new String[0];\n"); |
| buf.append(" X[][] x2= new String[][0];\n"); |
| buf.append(" X[][] x3= new String[][][0];\n"); |
| buf.append("\n"); // parameterized types |
| buf.append(" ArrayList<X> x4= new ArrayList<String>();\n"); |
| buf.append(" X<String> x5= new ArrayList<String>();\n"); |
| buf.append(" HashMap<ArrayList<String>, X> x6= new HashMap<ArrayList<String>, Number>();\n"); |
| buf.append(" HashMap<ArrayList<X>, Number> x7= new HashMap<ArrayList<String>, Number>();\n"); |
| buf.append("\n"); // wildcard types |
| buf.append(" HashMap<? extends X, Number> x8= new HashMap<? extends Number, Number>();\n"); |
| buf.append("\n"); // qualified types |
| buf.append(" E<String>.F<X> x9 = new E<String>().new F<Number>();\n"); |
| buf.append(" E<String>.X<Number> x10 = new E<String>().new F<Number>();\n"); |
| buf.append(" X<String>.F<Number> x11 = new E<String>().new F<Number>();\n"); |
| buf.append("}\n"); |
| ICompilationUnit cu= pack1.createCompilationUnit("E.java", buf.toString(), false, null); |
| |
| String[] expected= { |
| "java.lang.String", "java.lang.String", "null", |
| "java.lang.String", "java.util.ArrayList<java.lang.String>", "java.lang.Number", "java.lang.String", |
| "java.lang.Number", |
| "java.lang.Number", "test1.E<java.lang.String>.F<java.lang.Number>", "test1.E<java.lang.String>" |
| }; |
| |
| CompilationUnit astRoot= getASTRoot(cu); |
| FieldDeclaration[] fields= ((TypeDeclaration) astRoot.types().get(0)).getFields(); |
| for (int i= 0; i < fields.length; i++) { |
| ASTNode node= NodeFinder.perform(astRoot, buf.indexOf("X", fields[i].getStartPosition()), 1); |
| ITypeBinding actualBinding= ASTResolving.guessBindingForTypeReference(node); |
| String actual= actualBinding != null ? actualBinding.getQualifiedName() : "null"; |
| if (!actual.equals(expected[i])) { |
| assertEquals("Guessing failed for " + fields[i].toString(), expected[i], actual); |
| } |
| } |
| } |
| |
| @Test |
| public void testGuessBindingForTypeReference2() throws Exception { |
| IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null); |
| StringBuilder buf= new StringBuilder(); |
| buf.append("package test1;\n"); |
| buf.append("import java.util.List;\n"); |
| buf.append("public class E {\n"); |
| buf.append(" private Object o;\n"); |
| buf.append(" public void foo(String s) {\n"); |
| buf.append(" foo((X) o);\n"); |
| buf.append(" }\n"); |
| buf.append(" public void foo2(List<Number> s) {\n"); |
| buf.append(" foo2((X<Number>) o);\n"); |
| buf.append(" }\n"); |
| buf.append(" public void foo3() {\n"); |
| buf.append(" X.foo3();\n"); |
| buf.append(" }\n"); |
| buf.append(" public Class[][] foo4() {\n"); |
| buf.append(" return new X[][];\n"); |
| buf.append(" }\n"); |
| buf.append("}\n"); |
| ICompilationUnit cu= pack1.createCompilationUnit("E.java", buf.toString(), false, null); |
| |
| String[] expected= { "java.lang.String", "java.util.List<java.lang.Number>", "null", "java.lang.Class" }; |
| |
| CompilationUnit astRoot= getASTRoot(cu); |
| MethodDeclaration[] methods= ((TypeDeclaration) astRoot.types().get(0)).getMethods(); |
| for (int i= 0; i < methods.length; i++) { |
| ASTNode node= NodeFinder.perform(astRoot, buf.indexOf("X", methods[i].getStartPosition()), 1); |
| ITypeBinding actualBinding= ASTResolving.guessBindingForTypeReference(node); |
| String actual= actualBinding != null ? actualBinding.getQualifiedName() : "null"; |
| if (!actual.equals(expected[i])) { |
| assertEquals("Guessing failed for " + methods[i].toString(), expected[i], actual); |
| } |
| } |
| |
| } |
| |
| @Test |
| public void testGetPossibleTypeKinds() throws Exception { |
| IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null); |
| StringBuilder buf= new StringBuilder(); |
| buf.append("package test1;\n"); |
| buf.append("import java.util.ArrayList;\n"); |
| buf.append("import java.util.HashMap;\n"); |
| buf.append("public class E<T> {\n"); |
| buf.append(" X x1;\n"); |
| buf.append(" X[] x2;\n"); |
| buf.append(" X<String> x3;\n"); |
| buf.append(" ArrayList<X> x4;\n"); |
| buf.append(" ArrayList<? extends X> x5;\n"); |
| buf.append("\n"); |
| buf.append(" E<String>.X x6;\n"); |
| buf.append(" X<String>.A x7;\n"); |
| buf.append(" Object x8= new X();\n"); |
| buf.append(" Object x9= new X() { };\n"); |
| buf.append(" Object x10= (X) x1;\n"); |
| buf.append("\n"); |
| buf.append(" X.A x11;\n"); |
| buf.append(" Object x12= X.class;\n"); |
| buf.append("}\n"); |
| ICompilationUnit cu= pack1.createCompilationUnit("E.java", buf.toString(), false, null); |
| |
| int[] expected= { |
| TypeKinds.ALL_TYPES, |
| TypeKinds.ALL_TYPES, |
| TypeKinds.CLASSES | TypeKinds.INTERFACES, // X<String> |
| TypeKinds.REF_TYPES_AND_VAR, |
| TypeKinds.REF_TYPES_AND_VAR, |
| |
| TypeKinds.REF_TYPES, // E<String>.X |
| TypeKinds.CLASSES | TypeKinds.INTERFACES, //X<String>.A |
| TypeKinds.CLASSES, //new X(); |
| TypeKinds.CLASSES | TypeKinds.INTERFACES, //new X() { }; |
| TypeKinds.ALL_TYPES, |
| |
| TypeKinds.REF_TYPES, |
| TypeKinds.REF_TYPES, |
| }; |
| |
| CompilationUnit astRoot= getASTRoot(cu); |
| FieldDeclaration[] fields= ((TypeDeclaration) astRoot.types().get(0)).getFields(); |
| for (int i= 0; i < fields.length; i++) { |
| ASTNode node= NodeFinder.perform(astRoot, buf.indexOf("X", fields[i].getStartPosition()), 1); |
| int kinds= ASTResolving.getPossibleTypeKinds(node, true); |
| if (kinds != expected[i]) { |
| assertEquals("Guessing failed for " + fields[i].toString(), expected[i], kinds); |
| } |
| } |
| } |
| } |