Test.java revision 553:9d9f26857129 
1/*
2 * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24import java.io.*;
25import java.net.*;
26import javax.tools.*;
27import java.util.*;
28
29import com.sun.source.tree.CompilationUnitTree;
30import com.sun.source.util.JavacTask;
31import com.sun.tools.javac.api.JavacTool;
32import com.sun.tools.javac.tree.JCTree;
33import com.sun.tools.javac.tree.Pretty;
34
35/**
36 * @test
37 * @bug 6902720
38 * @summary javac pretty printer does not handle enums correctly
39 */
40
41public class Test {
42
43    public static void main(String[] args) throws Exception {
44        Test t = new Test();
45        t.run("E1.java", "E2.java");
46    }
47
48    void run(String... args) throws Exception {
49        File testSrcDir = new File(System.getProperty("test.src"));
50        for (String arg: args) {
51            test(new File(testSrcDir, arg));
52        }
53    }
54
55    void test(File test) throws Exception {
56        JavacTool tool1 = JavacTool.create();
57        StandardJavaFileManager fm = tool1.getStandardFileManager(null, null, null);
58        Iterable<? extends JavaFileObject> files = fm.getJavaFileObjects(test);
59
60        // parse test file into a tree, and write it out to a stringbuffer using Pretty
61        JavacTask t1 = tool1.getTask(null, fm, null, null, null, files);
62        StringWriter sw = new StringWriter();
63        PrintWriter pw = new PrintWriter(sw);
64        Iterable<? extends CompilationUnitTree> trees = t1.parse();
65        for (CompilationUnitTree tree: trees) {
66            new Pretty(pw, true).printExpr((JCTree) tree);
67        }
68        pw.close();
69
70        final String out = sw.toString();
71        System.err.println("generated code:\n" + out + "\n");
72
73        // verify the generated code is valid Java by compiling it
74        JavacTool tool2 = JavacTool.create();
75        JavaFileObject fo = new SimpleJavaFileObject(URI.create("output"), JavaFileObject.Kind.SOURCE) {
76            @Override
77            public CharSequence getCharContent(boolean ignoreEncodingErrors) {
78                return out;
79            }
80        };
81        JavacTask t2 = tool2.getTask(null, fm, null, null, null, Collections.singleton(fo));
82        boolean ok = t2.call();
83        if (!ok)
84            throw new Exception("compilation of generated code failed");
85
86        File expectedClass = new File(test.getName().replace(".java", ".class"));
87        if (!expectedClass.exists())
88            throw new Exception(expectedClass + " not found");
89    }
90}
91
92