1 /*
   2  * Copyright (c) 2008, 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 
  24 /* @test
  25  * @bug 4313887
  26  * @summary Unit test for probeContentType method
  27  * @library ..
  28  * @build ContentType SimpleFileTypeDetector
  29  * @run main/othervm ContentType
  30  */
  31 
  32 import java.nio.file.*;
  33 import java.io.*;
  34 
  35 /**
  36  * Uses Files.probeContentType to probe html file and custom file type.
  37  */
  38 
  39 public class ContentType {
  40 
  41     static Path createHtmlFile() throws IOException {
  42         Path file = File.createTempFile("foo", ".html").toPath();
  43         OutputStream out = file.newOutputStream();
  44         try {
  45             out.write("<html><body>foo</body></html>".getBytes());
  46         } finally {
  47             out.close();
  48         }
  49 
  50         return file;
  51     }
  52 
  53     static Path createGrapeFile() throws IOException {
  54         return File.createTempFile("red", ".grape").toPath();
  55     }
  56 
  57     public static void main(String[] args) throws IOException {
  58 
  59         // exercise default file type detector
  60         Path file = createHtmlFile();
  61         try {
  62             String type = Files.probeContentType(file);
  63             if (type == null) {
  64                 System.err.println("Content type cannot be determined - test skipped");
  65             } else {
  66                 if (!type.equals("text/html"))
  67                     throw new RuntimeException("Unexpected type: " + type);
  68             }
  69         } finally {
  70             file.delete();
  71         }
  72 
  73         // exercise custom file type detector
  74         file = createGrapeFile();
  75         try {
  76             String type = Files.probeContentType(file);
  77             if (type == null)
  78                 throw new RuntimeException("Custom file type detector not installed?");
  79             if (!type.equals("grape/unknown"))
  80                 throw new RuntimeException("Unexpected type: " + type);
  81         } finally {
  82             file.delete();
  83         }
  84 
  85     }
  86 }