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 

    33 import com.sun.javadoc.*;

    34 import java.io.*;

    35 import static com.sun.tools.javadoc.Main.execute;

    36 

    37 public 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 }