org.eclipse.jdt.ui.tests/ui/org/eclipse/jdt/ui/tests/quickfix/QuickFixTest18.java

/*******************************************************************************
 * Copyright (c) 2013 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * This is an implementation of an early-draft specification developed under the Java Community Process (JCP) and
 * is made available for testing and evaluation purposes only.
 * The code is not compatible with any specification of the JCP.
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jdt.ui.tests.quickfix;

import java.util.ArrayList;
import java.util.Hashtable;

import junit.framework.Test;
import junit.framework.TestSuite;

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.CompilationUnit;
import org.eclipse.jdt.core.formatter.DefaultCodeFormatterConstants;

import org.eclipse.jdt.internal.corext.codemanipulation.StubUtility;
import org.eclipse.jdt.internal.corext.template.java.CodeTemplateContextType;

import org.eclipse.jdt.ui.PreferenceConstants;
import org.eclipse.jdt.ui.tests.core.Java18ProjectTestSetup;
import org.eclipse.jdt.ui.text.java.correction.CUCorrectionProposal;

import org.eclipse.jdt.internal.ui.JavaPlugin;


public class QuickFixTest18 extends QuickFixTest {

	private static final Class THIS= QuickFixTest18.class;

	private IJavaProject fJProject1;

	private IPackageFragmentRoot fSourceFolder;

	public QuickFixTest18(String name) {
		super(name);
	}

	public static Test suite() {
		return new Java18ProjectTestSetup(new TestSuite(THIS));
	}

	public static Test setUpTest(Test test) {
		return new Java18ProjectTestSetup(test);
	}

	@Override
	protected void setUp() throws Exception {
		Hashtable options= TestOptions.getDefaultOptions();
		options.put(DefaultCodeFormatterConstants.FORMATTER_TAB_CHAR, JavaCore.SPACE);
		options.put(DefaultCodeFormatterConstants.FORMATTER_TAB_SIZE, "4");
		options.put(DefaultCodeFormatterConstants.FORMATTER_INSERT_NEW_LINE_AFTER_ANNOTATION_ON_LOCAL_VARIABLE, JavaCore.DO_NOT_INSERT);


		JavaCore.setOptions(options);

		IPreferenceStore store= JavaPlugin.getDefault().getPreferenceStore();
		store.setValue(PreferenceConstants.CODEGEN_ADD_COMMENTS, false);

		fJProject1= Java18ProjectTestSetup.getProject();

		StubUtility.setCodeTemplate(CodeTemplateContextType.METHODSTUB_ID, "", null);
		StubUtility.setCodeTemplate(CodeTemplateContextType.CONSTRUCTORSTUB_ID, "", null);

		fSourceFolder= JavaProjectHelper.addSourceContainer(fJProject1, "src");
	}


	@Override
	protected void tearDown() throws Exception {
		JavaProjectHelper.clear(fJProject1, Java18ProjectTestSetup.getDefaultClasspath());
	}

	public void testUnimplementedMethods() throws Exception {
		IPackageFragment pack2= fSourceFolder.createPackageFragment("test2", false, null);
		StringBuffer buf= new StringBuffer();
		buf.append("package test2;\n");
		buf.append("import java.io.IOException;\n");
		buf.append("public interface Inter {\n");
		buf.append("    int getCount(Object[] o) throws IOException;\n");
		buf.append("    static int staticMethod(Object[] o) throws IOException{return 10;}\n");
		buf.append("    default int defaultMethod(Object[] o) throws IOException{return 20;}\n");
		buf.append("}\n");
		pack2.createCompilationUnit("Inter.java", buf.toString(), false, null);


		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("import test2.Inter;\n");
		buf.append("public class E implements Inter{\n");
		buf.append("}\n");
		ICompilationUnit cu= pack1.createCompilationUnit("E.java", buf.toString(), false, null);

		CompilationUnit astRoot= getASTRoot(cu);
		ArrayList proposals= collectCorrections(cu, astRoot);
		assertNumberOfProposals(proposals, 2);
		assertCorrectLabels(proposals);

		CUCorrectionProposal proposal= (CUCorrectionProposal)proposals.get(1);
		String preview1= getPreviewContent(proposal);

		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("import test2.Inter;\n");
		buf.append("public abstract class E implements Inter{\n");
		buf.append("}\n");
		String expected1= buf.toString();

		proposal= (CUCorrectionProposal)proposals.get(0);
		String preview2= getPreviewContent(proposal);

		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("import java.io.IOException;\n");
		buf.append("\n");
		buf.append("import test2.Inter;\n");
		buf.append("public class E implements Inter{\n");
		buf.append("\n");
		buf.append("    @Override\n");
		buf.append("    public int getCount(Object[] o) throws IOException {\n");
		buf.append("        return 0;\n");
		buf.append("    }\n");
		buf.append("}\n");
		String expected2= buf.toString();

		assertEqualStringsIgnoreOrder(new String[] { preview1, preview2 }, new String[] { expected1, expected2 });

	}

	public void testUnimplementedMethods2() throws Exception {
		StringBuffer buf= new StringBuffer();
		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class MyString implements CharSequence{\n");
		buf.append("}\n");
		ICompilationUnit cu= pack1.createCompilationUnit("MyString.java", buf.toString(), false, null);

		CompilationUnit astRoot= getASTRoot(cu);
		ArrayList proposals= collectCorrections(cu, astRoot, 3);
		assertNumberOfProposals(proposals, 2);
		assertCorrectLabels(proposals);

		CUCorrectionProposal proposal= (CUCorrectionProposal)proposals.get(1);
		String preview1= getPreviewContent(proposal);

		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public abstract class MyString implements CharSequence{\n");
		buf.append("}\n");
		String expected1= buf.toString();

		proposal= (CUCorrectionProposal)proposals.get(0);
		String preview2= getPreviewContent(proposal);

		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class MyString implements CharSequence{\n");
		buf.append("\n");
		buf.append("    @Override\n");
		buf.append("    public char charAt(int arg0) {\n");
		buf.append("        return 0;\n");
		buf.append("    }\n\n");
		buf.append("    @Override\n");
		buf.append("    public int length() {\n");
		buf.append("        return 0;\n");
		buf.append("    }\n\n");
		buf.append("    @Override\n");
		buf.append("    public CharSequence subSequence(int arg0, int arg1) {\n");
		buf.append("        return null;\n");
		buf.append("    }\n");
		buf.append("}\n");
		String expected2= buf.toString();

		assertEqualStringsIgnoreOrder(new String[] { preview1, preview2 }, new String[] { expected1, expected2 });

	}
}