TIKA-1817 Test DXF ASCII file, and detection unit test

git-svn-id: https://svn.apache.org/repos/asf/tika/trunk@1721576 13f79535-47bb-0310-9956-ffa450edef68

Author: Gagravarr

LICENSE.txt

@@ -370,3 +370,11 @@ JUnRAR (https://github.com/edmund-wagner/junrar/)
 Sqlite (bundled in org.xerial's sqlite-jdbc)
     This product bundles Sqlite, which is in the Public Domain.  For details
     see: https://www.sqlite.org/copyright.html
+
+Sample DXF file testDXF.dxf (in tika-parsers/src/test/resources/test-documents)
+     Copyright 2012 Ho Thanh Tam, www.cadkit.net
+
+     Permission to use, copy, modify, and distribute this software and its 
+     documentation for any purpose is hereby granted without fee, provided 
+     that the above copyright notice, author statement appear in all copies 
+     of this software and related documentation.

tika-parsers/src/test/java/org/apache/tika/mime/TestMimeTypes.java

@@ -531,11 +531,17 @@ public void testSwfDetection() throws Exception {
     }
 
     @Test
-    public void testDwgDetection() throws Exception {
+    public void testAutoCADDetection() throws Exception {
         assertTypeByName("image/vnd.dwg", "x.dwg");
         assertTypeByData("image/vnd.dwg", "testDWG2004.dwg");
         assertTypeByData("image/vnd.dwg", "testDWG2007.dwg");
         assertTypeByData("image/vnd.dwg", "testDWG2010.dwg");
+        
+        // From name, gets the common parent type
+        assertTypeByName("image/vnd.dxf", "x.dxf");
+        // With the data, can work out it's the ASCII flavour
+        assertTypeByData("image/vnd.dxf; format=ascii", "testDXF_ascii.dxf");
+        // TODO Get a sample Binary DXF file and test
     }
 
     @Test