aoqi@0: /*
aoqi@0:  * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: /*
aoqi@0:  * @test
aoqi@0:  * @bug 7068902
aoqi@0:  * @summary verify that string folding can be enabled or disabled
aoqi@0:  */
aoqi@0: 
aoqi@0: import com.sun.source.tree.CompilationUnitTree;
aoqi@0: import com.sun.source.util.JavacTask;
aoqi@0: import java.io.File;
aoqi@0: import java.io.IOException;
aoqi@0: import java.net.URI;
aoqi@0: import java.util.ArrayList;
aoqi@0: import java.util.Arrays;
aoqi@0: import java.util.List;
aoqi@0: import javax.tools.JavaCompiler;
aoqi@0: import javax.tools.JavaFileObject;
aoqi@0: import javax.tools.SimpleJavaFileObject;
aoqi@0: import javax.tools.ToolProvider;
aoqi@0: 
aoqi@0: public class StringFoldingTest {
aoqi@0:     final JavaCompiler tool;
aoqi@0:     final JavaSource source;
aoqi@0: 
aoqi@0:     public StringFoldingTest() {
aoqi@0:         tool = ToolProvider.getSystemJavaCompiler();
aoqi@0:         source = new JavaSource();
aoqi@0:     }
aoqi@0: 
aoqi@0:     static class JavaSource extends SimpleJavaFileObject {
aoqi@0: 
aoqi@0:         final static String source =
aoqi@0:                 "class C {String X=\"F\" + \"O\" + \"L\" + \"D\" + \"E\" + \"D\";}";
aoqi@0: 
aoqi@0:         JavaSource() {
aoqi@0:             super(URI.create("myfo:/C.java"), JavaFileObject.Kind.SOURCE);
aoqi@0:         }
aoqi@0: 
aoqi@0:         @Override
aoqi@0:         public CharSequence getCharContent(boolean ignoreEncodingErrors) {
aoqi@0:             return source;
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     public static void main(String... args) throws IOException {
aoqi@0:         StringFoldingTest t = new StringFoldingTest();
aoqi@0:         t.run(false);
aoqi@0:         t.run(true);
aoqi@0:     }
aoqi@0: 
aoqi@0:     void run(boolean disableStringFolding) throws IOException {
aoqi@0:         List<String> argsList = new ArrayList<String>();
aoqi@0:         if (disableStringFolding) {
aoqi@0:             argsList.add("-XDallowStringFolding=false");
aoqi@0:         }
aoqi@0:         JavacTask ct = (JavacTask)tool.getTask(null, null, null,
aoqi@0:                 argsList,
aoqi@0:                 null,
aoqi@0:                 Arrays.asList(source));
aoqi@0:         Iterable<? extends CompilationUnitTree> trees = ct.parse();
aoqi@0:         String text = trees.toString();
aoqi@0:         System.out.println(text);
aoqi@0: 
aoqi@0:         if (disableStringFolding) {
aoqi@0:             if (text.contains("FOLDED")) {
aoqi@0:                 throw new AssertionError("Expected string folding");
aoqi@0:             }
aoqi@0:         } else {
aoqi@0:             if (!text.contains("FOLDED")) {
aoqi@0:                 throw new AssertionError("Expected no string folding");
aoqi@0:             }
aoqi@0:         }
aoqi@0:     }
aoqi@0: }