1/*
2 * Copyright (c) 2005, 2015, 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
24/**
25 * @test
26 * @bug     4994049
27 * @summary Unit test for SourcePosition.column with respect to tab expansion
28 * @author  Peter von der Ah\u00e9
29 * @modules jdk.javadoc
30 * @run main T4994049 FileWithTabs.java
31 */
32
33import com.sun.javadoc.*;
34import java.io.*;
35import static com.sun.tools.javadoc.Main.execute;
36
37public class T4994049 extends Doclet {
38
39    public static boolean start(RootDoc root) {
40        for (ClassDoc klass : root.classes()) {
41            for (MethodDoc method : klass.methods()) {
42                if (method.name().equals("tabbedMethod")) {
43                    if (method.position().column() == 21) {
44                        System.out.println(method.position().column() + ": OK!");
45                        return true;
46                    } else {
47                        System.err.println(method.position() + ": wrong tab expansion");
48                        return false;
49                    }
50                }
51            }
52        }
53        return false;
54    }
55
56    public static void main(String... args) throws Exception {
57        File testSrc = new File(System.getProperty("test.src"));
58        File tmpSrc = new File("tmpSrc");
59        initTabs(testSrc, tmpSrc);
60
61        for (String file : args) {
62            File source = new File(tmpSrc, file);
63            int rc = execute("javadoc", "T4994049", T4994049.class.getClassLoader(),
64                        new String[]{ source.getPath() } );
65            if (rc != 0)
66                throw new Error("Unexpected return code from javadoc: " + rc);
67        }
68    }
69
70    static void initTabs(File from, File to) throws IOException {
71        for (File f: from.listFiles()) {
72            File t = new File(to, f.getName());
73            if (f.isDirectory()) {
74                initTabs(f, t);
75            } else if (f.getName().endsWith(".java")) {
76                write(t, read(f).replace("\\t", "\t"));
77            }
78        }
79    }
80
81    static String read(File f) throws IOException {
82        StringBuilder sb = new StringBuilder();
83        try (BufferedReader in = new BufferedReader(new FileReader(f))) {
84            String line;
85            while ((line = in.readLine()) != null) {
86                sb.append(line);
87                sb.append("\n");
88            }
89        }
90        return sb.toString();
91    }
92
93    static void write(File f, String s) throws IOException {
94        f.getParentFile().mkdirs();
95        try (Writer out = new FileWriter(f)) {
96            out.write(s);
97        }
98    }
99
100}
101