1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.emailcommon.internet;
18
19import com.android.emailcommon.internet.MimeBodyPart;
20import com.android.emailcommon.internet.MimeHeader;
21import com.android.emailcommon.internet.MimeUtility;
22import com.android.emailcommon.internet.TextBody;
23import com.android.emailcommon.mail.BodyPart;
24import com.android.emailcommon.mail.Message;
25import com.android.emailcommon.mail.MessageTestUtils;
26import com.android.emailcommon.mail.MessagingException;
27import com.android.emailcommon.mail.Part;
28import com.android.emailcommon.mail.MessageTestUtils.MessageBuilder;
29import com.android.emailcommon.mail.MessageTestUtils.MultipartBuilder;
30
31import android.test.suitebuilder.annotation.SmallTest;
32
33import java.util.ArrayList;
34
35import junit.framework.TestCase;
36
37/**
38 * This is a series of unit tests for the MimeUtility class.  These tests must be locally
39 * complete - no server(s) required.
40 */
41@SmallTest
42public class MimeUtilityTest extends TestCase {
43
44    /** up arrow, down arrow, left arrow, right arrow */
45    private final String SHORT_UNICODE = "\u2191\u2193\u2190\u2192";
46    private final String SHORT_UNICODE_ENCODED = "=?UTF-8?B?4oaR4oaT4oaQ4oaS?=";
47
48    /** dollar and euro sign */
49    private final String PADDED2_UNICODE = "$\u20AC";
50    private final String PADDED2_UNICODE_ENCODED = "=?UTF-8?B?JOKCrA==?=";
51    private final String PADDED1_UNICODE = "$$\u20AC";
52    private final String PADDED1_UNICODE_ENCODED = "=?UTF-8?B?JCTigqw=?=";
53    private final String PADDED0_UNICODE = "$$$\u20AC";
54    private final String PADDED0_UNICODE_ENCODED = "=?UTF-8?B?JCQk4oKs?=";
55
56    /** a string without any unicode */
57    private final String SHORT_PLAIN = "abcd";
58
59    /** long subject which will be split into two MIME/Base64 chunks */
60    private final String LONG_UNICODE_SPLIT =
61        "$" +
62        "\u20AC\u20AC\u20AC\u20AC\u20AC\u20AC\u20AC\u20AC\u20AC\u20AC" +
63        "\u20AC\u20AC\u20AC\u20AC\u20AC\u20AC\u20AC\u20AC\u20AC\u20AC";
64    private final String LONG_UNICODE_SPLIT_ENCODED =
65        "=?UTF-8?B?JOKCrOKCrOKCrOKCrOKCrOKCrOKCrOKCrA==?=" + "\r\n " +
66        "=?UTF-8?B?4oKs4oKs4oKs4oKs4oKs4oKs4oKs4oKs4oKs4oKs4oKs4oKs?=";
67
68    /** strings that use supplemental characters and really stress encode/decode */
69    // actually it's U+10400
70    private final String SHORT_SUPPLEMENTAL = "\uD801\uDC00";
71    private final String SHORT_SUPPLEMENTAL_ENCODED = "=?UTF-8?B?8JCQgA==?=";
72    private final String LONG_SUPPLEMENTAL = SHORT_SUPPLEMENTAL + SHORT_SUPPLEMENTAL +
73        SHORT_SUPPLEMENTAL + SHORT_SUPPLEMENTAL + SHORT_SUPPLEMENTAL + SHORT_SUPPLEMENTAL +
74        SHORT_SUPPLEMENTAL + SHORT_SUPPLEMENTAL + SHORT_SUPPLEMENTAL + SHORT_SUPPLEMENTAL;
75    private final String LONG_SUPPLEMENTAL_ENCODED =
76        "=?UTF-8?B?8JCQgPCQkIDwkJCA8JCQgA==?=" + "\r\n " +
77        "=?UTF-8?B?8JCQgPCQkIDwkJCA8JCQgPCQkIDwkJCA?=";
78    private final String LONG_SUPPLEMENTAL_2 = "a" + SHORT_SUPPLEMENTAL + SHORT_SUPPLEMENTAL +
79        SHORT_SUPPLEMENTAL + SHORT_SUPPLEMENTAL + SHORT_SUPPLEMENTAL + SHORT_SUPPLEMENTAL +
80        SHORT_SUPPLEMENTAL + SHORT_SUPPLEMENTAL + SHORT_SUPPLEMENTAL + SHORT_SUPPLEMENTAL;
81    private final String LONG_SUPPLEMENTAL_ENCODED_2 =
82        "=?UTF-8?B?YfCQkIDwkJCA8JCQgPCQkIA=?=" + "\r\n " +
83        "=?UTF-8?B?8JCQgPCQkIDwkJCA8JCQgPCQkIDwkJCA?=";
84    // Earth is U+1D300.
85    private final String LONG_SUPPLEMENTAL_QP =
86        "*Monogram for Earth \uD834\uDF00. Monogram for Human \u268b.";
87    private final String LONG_SUPPLEMENTAL_QP_ENCODED =
88        "=?UTF-8?Q?*Monogram_for_Earth_?=" + "\r\n " +
89        "=?UTF-8?Q?=F0=9D=8C=80._Monogram_for_Human_=E2=9A=8B.?=";
90
91    /** a typical no-param header */
92    private final String HEADER_NO_PARAMETER =
93            "header";
94    /** a typical multi-param header */
95    private final String HEADER_MULTI_PARAMETER =
96            "header; Param1Name=Param1Value; Param2Name=Param2Value";
97    /** a multi-param header with quoting */
98    private final String HEADER_QUOTED_MULTI_PARAMETER =
99            "header; Param1Name=\"Param1Value\"; Param2Name=\"Param2Value\"";
100    /** a malformed header we're seeing in production servers */
101    private final String HEADER_MALFORMED_PARAMETER =
102            "header; Param1Name=Param1Value; filename";
103
104    /**
105     * a string generated by google calendar that contains two interesting gotchas:
106     * 1.  Uses windows-1252 encoding, and en-dash recoded appropriately (\u2013 / =96)
107     * 2.  Because the first encoded char requires '=XX' encoding, we create an "internal"
108     *     "?=" that the decoder must correctly skip over.
109     **/
110    private final String CALENDAR_SUBJECT_UNICODE =
111        "=?windows-1252?Q?=5BReminder=5D_test_=40_Fri_Mar_20_10=3A30am_=96_11am_=28andro?=" +
112        "\r\n\t" +
113        "=?windows-1252?Q?id=2Etr=40gmail=2Ecom=29?=";
114    private final String CALENDAR_SUBJECT_PLAIN =
115        "[Reminder] test @ Fri Mar 20 10:30am \u2013 11am (android.tr@gmail.com)";
116
117    /**
118     * Some basic degenerate strings designed to exercise error handling in the decoder
119     */
120    private final String CALENDAR_DEGENERATE_UNICODE_1 =
121        "=?windows-1252?Q=5B?=";
122    private final String CALENDAR_DEGENERATE_UNICODE_2 =
123        "=?windows-1252Q?=5B?=";
124    private final String CALENDAR_DEGENERATE_UNICODE_3 =
125        "=?windows-1252?=";
126    private final String CALENDAR_DEGENERATE_UNICODE_4 =
127        "=?windows-1252";
128
129    /**
130     * Test that decode/unfold is efficient when it can be
131     */
132    public void testEfficientUnfoldAndDecode() {
133        String result1 = MimeUtility.unfold(SHORT_PLAIN);
134        String result2 = MimeUtility.decode(SHORT_PLAIN);
135        String result3 = MimeUtility.unfoldAndDecode(SHORT_PLAIN);
136
137        assertSame(SHORT_PLAIN, result1);
138        assertSame(SHORT_PLAIN, result2);
139        assertSame(SHORT_PLAIN, result3);
140    }
141
142    // TODO:  more tests for unfold(String s)
143
144    /**
145     * Test that decode is working for simple strings
146     */
147    public void testDecodeSimple() {
148        String result1 = MimeUtility.decode(SHORT_UNICODE_ENCODED);
149        assertEquals(SHORT_UNICODE, result1);
150    }
151
152    // TODO:  tests for decode(String s)
153
154    /**
155     * Test that unfoldAndDecode is working for simple strings
156     */
157    public void testUnfoldAndDecodeSimple() {
158        String result1 = MimeUtility.unfoldAndDecode(SHORT_UNICODE_ENCODED);
159        assertEquals(SHORT_UNICODE, result1);
160    }
161
162    /**
163     * test decoding complex string from google calendar that has two gotchas for the decoder.
164     * also tests a couple of degenerate cases that should "fail" decoding and pass through.
165     */
166    public void testComplexDecode() {
167        String result1 = MimeUtility.unfoldAndDecode(CALENDAR_SUBJECT_UNICODE);
168        assertEquals(CALENDAR_SUBJECT_PLAIN, result1);
169
170        // These degenerate cases should "fail" and return the same string
171        String degenerate1 = MimeUtility.unfoldAndDecode(CALENDAR_DEGENERATE_UNICODE_1);
172        assertEquals("degenerate case 1", CALENDAR_DEGENERATE_UNICODE_1, degenerate1);
173        String degenerate2 = MimeUtility.unfoldAndDecode(CALENDAR_DEGENERATE_UNICODE_2);
174        assertEquals("degenerate case 2", CALENDAR_DEGENERATE_UNICODE_2, degenerate2);
175        String degenerate3 = MimeUtility.unfoldAndDecode(CALENDAR_DEGENERATE_UNICODE_3);
176        assertEquals("degenerate case 3", CALENDAR_DEGENERATE_UNICODE_3, degenerate3);
177        String degenerate4 = MimeUtility.unfoldAndDecode(CALENDAR_DEGENERATE_UNICODE_4);
178        assertEquals("degenerate case 4", CALENDAR_DEGENERATE_UNICODE_4, degenerate4);
179    }
180
181    // TODO:  more tests for unfoldAndDecode(String s)
182
183    /**
184     * Test that fold/encode is efficient when it can be
185     */
186    public void testEfficientFoldAndEncode() {
187        String result1 = MimeUtility.foldAndEncode(SHORT_PLAIN);
188        String result2 = MimeUtility.foldAndEncode2(SHORT_PLAIN, 10);
189        String result3 = MimeUtility.fold(SHORT_PLAIN, 10);
190
191        assertSame(SHORT_PLAIN, result1);
192        assertSame(SHORT_PLAIN, result2);
193        assertSame(SHORT_PLAIN, result3);
194    }
195
196    /**
197     * Test about base64 padding variety.
198     */
199    public void testPaddingOfFoldAndEncode2() {
200        String result1 = MimeUtility.foldAndEncode2(PADDED2_UNICODE, 0);
201        String result2 = MimeUtility.foldAndEncode2(PADDED1_UNICODE, 0);
202        String result3 = MimeUtility.foldAndEncode2(PADDED0_UNICODE, 0);
203
204        assertEquals("padding 2", PADDED2_UNICODE_ENCODED, result1);
205        assertEquals("padding 1", PADDED1_UNICODE_ENCODED, result2);
206        assertEquals("padding 0", PADDED0_UNICODE_ENCODED, result3);
207    }
208
209    // TODO:  more tests for foldAndEncode(String s)
210
211    /**
212     * Test that foldAndEncode2 is working for simple strings
213     */
214    public void testFoldAndEncode2() {
215        String result1 = MimeUtility.foldAndEncode2(SHORT_UNICODE, 10);
216        assertEquals(SHORT_UNICODE_ENCODED, result1);
217    }
218
219    /**
220     * Test that foldAndEncode2 is working for long strings which needs splitting.
221     */
222    public void testFoldAndEncode2WithLongSplit() {
223        String result = MimeUtility.foldAndEncode2(LONG_UNICODE_SPLIT, "Subject: ".length());
224
225        assertEquals("long string", LONG_UNICODE_SPLIT_ENCODED, result);
226    }
227
228    /**
229     * Tests of foldAndEncode2 that involve supplemental characters (UTF-32)
230     *
231     * Note that the difference between LONG_SUPPLEMENTAL and LONG_SUPPLEMENTAL_2 is the
232     * insertion of a single character at the head of the string. This is intended to disrupt
233     * the code that splits the long string into multiple encoded words, and confirm that it
234     * properly applies the breaks between UTF-32 code points.
235     */
236    public void testFoldAndEncode2Supplemental() {
237        String result1 = MimeUtility.foldAndEncode2(SHORT_SUPPLEMENTAL, "Subject: ".length());
238        String result2 = MimeUtility.foldAndEncode2(LONG_SUPPLEMENTAL, "Subject: ".length());
239        String result3 = MimeUtility.foldAndEncode2(LONG_SUPPLEMENTAL_2, "Subject: ".length());
240        assertEquals("short supplemental", SHORT_SUPPLEMENTAL_ENCODED, result1);
241        assertEquals("long supplemental", LONG_SUPPLEMENTAL_ENCODED, result2);
242        assertEquals("long supplemental 2", LONG_SUPPLEMENTAL_ENCODED_2, result3);
243    }
244
245    /**
246     * Tests of foldAndEncode2 that involve supplemental characters (UTF-32)
247     *
248     * Note that the difference between LONG_SUPPLEMENTAL and LONG_SUPPLEMENTAL_QP is that
249     * the former will be encoded as base64 but the latter will be encoded as quoted printable.
250     */
251    public void testFoldAndEncode2SupplementalQuotedPrintable() {
252        String result = MimeUtility.foldAndEncode2(LONG_SUPPLEMENTAL_QP, "Subject: ".length());
253        assertEquals("long supplement quoted printable",
254                     LONG_SUPPLEMENTAL_QP_ENCODED, result);
255    }
256
257    // TODO:  more tests for foldAndEncode2(String s)
258    // TODO:  more tests for fold(String s, int usedCharacters)
259
260    /**
261     * Basic tests of getHeaderParameter()
262     *
263     * Typical header value:  multipart/mixed; boundary="----E5UGTXUQQJV80DR8SJ88F79BRA4S8K"
264     *
265     * Function spec says:
266     *  if header is null:  return null
267     *  if name is null:    if params, return first param.  else return full field
268     *  else:               if param is found (case insensitive) return it
269     *                        else return null
270     */
271    public void testGetHeaderParameter() {
272        // if header is null, return null
273        assertNull("null header check", MimeUtility.getHeaderParameter(null, "name"));
274
275        // if name is null, return first param or full header
276        // NOTE:  The docs are wrong - it returns the header (no params) in that case
277//      assertEquals("null name first param per docs", "Param1Value",
278//              MimeUtility.getHeaderParameter(HEADER_MULTI_PARAMETER, null));
279        assertEquals("null name first param per code", "header",
280                MimeUtility.getHeaderParameter(HEADER_MULTI_PARAMETER, null));
281        assertEquals("null name full header", HEADER_NO_PARAMETER,
282                MimeUtility.getHeaderParameter(HEADER_NO_PARAMETER, null));
283
284        // find name
285        assertEquals("get 1st param", "Param1Value",
286                MimeUtility.getHeaderParameter(HEADER_MULTI_PARAMETER, "Param1Name"));
287        assertEquals("get 2nd param", "Param2Value",
288                MimeUtility.getHeaderParameter(HEADER_MULTI_PARAMETER, "Param2Name"));
289        assertEquals("get missing param", null,
290                MimeUtility.getHeaderParameter(HEADER_MULTI_PARAMETER, "Param3Name"));
291
292        // case insensitivity
293        assertEquals("get 2nd param all LC", "Param2Value",
294                MimeUtility.getHeaderParameter(HEADER_MULTI_PARAMETER, "param2name"));
295        assertEquals("get 2nd param all UC", "Param2Value",
296                MimeUtility.getHeaderParameter(HEADER_MULTI_PARAMETER, "PARAM2NAME"));
297
298        // quoting
299        assertEquals("get 1st param", "Param1Value",
300                MimeUtility.getHeaderParameter(HEADER_QUOTED_MULTI_PARAMETER, "Param1Name"));
301        assertEquals("get 2nd param", "Param2Value",
302                MimeUtility.getHeaderParameter(HEADER_QUOTED_MULTI_PARAMETER, "Param2Name"));
303
304        // Don't fail when malformed
305        assertEquals("malformed filename param", null,
306                MimeUtility.getHeaderParameter(HEADER_MALFORMED_PARAMETER, "filename"));
307    }
308
309    // TODO:  tests for findFirstPartByMimeType(Part part, String mimeType)
310
311    /** Tests for findPartByContentId(Part part, String contentId) */
312    public void brokentestCollectParts() throws MessagingException, Exception {
313        // golden cases; these will marked as attachments
314        final String cid1 = "<i_12e8248b4f0874cb>";
315        final Part cid1bp = MessageTestUtils.bodyPart("image/gif; name=\"im1.gif\"", cid1);
316        final String cid2 = "<ii_12e8248b4f0874cb>";
317        final Part cid2bp = MessageTestUtils.bodyPart("image/gif", cid2);
318        cid2bp.addHeader(MimeHeader.HEADER_CONTENT_DISPOSITION, "inline; filename=\"im2.gif\"");
319        final String cid3 = "<iii_12e8248b4f0874cb>";
320        final Part cid3bp = MessageTestUtils.bodyPart("image/gif", cid3);
321        cid3bp.addHeader(MimeHeader.HEADER_CONTENT_DISPOSITION, "attachment; filename=\"im3.gif\"");
322        // error cases; these will NOT be marked as attachments
323        final String cid4 = "<iv_12e8248b4f0874cb>";
324        final Part cid4bp = MessageTestUtils.bodyPart("image/gif", cid4);  // no name attr
325        final String cid5 = "<v_12e8248b4f0874cb>";
326        final Part cid5bp = MessageTestUtils.bodyPart("image/gif", cid5);
327        cid5bp.addHeader(MimeHeader.HEADER_CONTENT_DISPOSITION, "inline"); // no filename attr
328
329        // Default content disposition
330        final ArrayList<Part> view1 = new ArrayList<Part>();
331        final ArrayList<Part> attach1 = new ArrayList<Part>();
332        MimeUtility.collectParts(cid1bp, view1, attach1);
333        assertEquals(1, attach1.size());
334        assertEquals(attach1.get(0), cid1bp);
335
336        // Explicit content disposition of "inline"
337        final ArrayList<Part> view2 = new ArrayList<Part>();
338        final ArrayList<Part> attach2 = new ArrayList<Part>();
339        MimeUtility.collectParts(cid2bp, view2, attach2);
340        assertEquals(1, attach2.size());
341        assertEquals(attach2.get(0), cid2bp);
342
343        // Explicit content disposition of "attachment"
344        final ArrayList<Part> view3 = new ArrayList<Part>();
345        final ArrayList<Part> attach3 = new ArrayList<Part>();
346        MimeUtility.collectParts(cid3bp, view3, attach3);
347        assertEquals(1, attach3.size());
348        assertEquals(attach3.get(0), cid3bp);
349
350        // Default content disposition; missing name attribute on content-type
351        final ArrayList<Part> view4 = new ArrayList<Part>();
352        final ArrayList<Part> attach4 = new ArrayList<Part>();
353        MimeUtility.collectParts(cid4bp, view4, attach4);
354        assertEquals(0, attach4.size());
355
356        // Content disposition of "inline"; missing filename attribute
357        final ArrayList<Part> view5 = new ArrayList<Part>();
358        final ArrayList<Part> attach5 = new ArrayList<Part>();
359        MimeUtility.collectParts(cid5bp, view5, attach5);
360        assertEquals(0, attach5.size());
361    }
362
363    /** Tests for getTextFromPart(Part part) */
364    public void testGetTextFromPartContentTypeCase() throws MessagingException {
365        final String theText = "This is the text of the part";
366        TextBody tb = new TextBody(theText);
367        MimeBodyPart p = new MimeBodyPart();
368
369        // 1. test basic text/plain mode
370        p.setHeader(MimeHeader.HEADER_CONTENT_TYPE, "text/plain");
371        p.setBody(tb);
372        String gotText = MimeUtility.getTextFromPart(p);
373        assertEquals(theText, gotText);
374
375        // 2. mixed case is OK
376        p.setHeader(MimeHeader.HEADER_CONTENT_TYPE, "TEXT/PLAIN");
377        p.setBody(tb);
378        gotText = MimeUtility.getTextFromPart(p);
379        assertEquals(theText, gotText);
380
381        // 3. wildcards OK
382        p.setHeader(MimeHeader.HEADER_CONTENT_TYPE, "text/other");
383        p.setBody(tb);
384        gotText = MimeUtility.getTextFromPart(p);
385        assertEquals(theText, gotText);
386    }
387
388    /** Test for usage of Content-Type in getTextFromPart(Part part).
389     *
390     * For example 'Content-Type: text/html; charset=utf-8'
391     *
392     *  If the body part has no mime-type, refuses to parse content as text.
393     *  If the mime-type does not match text/*, it will not get parsed.
394     *  Then, the charset parameter is used, with a default of ASCII.
395     *
396     *  This test works by using a string that is valid Unicode, and is also
397     *  valid when decoded from UTF-8 bytes into Windows-1252 (so that
398     *  auto-detection is not possible), and checks that the correct conversion
399     *  was made, based on the Content-Type header.
400     *
401     */
402    public void testContentTypeCharset() throws MessagingException {
403        final String UNICODE_EXPECT = "This is some happy unicode text \u263a";
404        // What you get if you encode to UTF-8 (\xe2\x98\xba) and reencode with Windows-1252
405        final String WINDOWS1252_EXPECT = "This is some happy unicode text \u00e2\u02dc\u00ba";
406        TextBody tb = new TextBody(UNICODE_EXPECT);
407        MimeBodyPart p = new MimeBodyPart();
408
409        String gotText, mimeType, charset;
410        // TEST 0: Standard Content-Type header; no extraneous spaces or fields
411        p.setBody(tb);
412        // We call setHeader after setBody, since setBody overwrites Content-Type
413        p.setHeader(MimeHeader.HEADER_CONTENT_TYPE, "text/html; charset=utf-8");
414        gotText = MimeUtility.getTextFromPart(p);
415        assertTrue(MimeUtility.mimeTypeMatches(p.getMimeType(), "text/html"));
416        assertEquals(UNICODE_EXPECT, gotText);
417
418        p.setBody(tb);
419        p.setHeader(MimeHeader.HEADER_CONTENT_TYPE, "text/html; charset=windows-1252");
420        gotText = MimeUtility.getTextFromPart(p);
421        assertTrue(MimeUtility.mimeTypeMatches(p.getMimeType(), "text/html"));
422        assertEquals(WINDOWS1252_EXPECT, gotText);
423
424        // TEST 1: Extra fields and quotes in Content-Type (from RFC 2045)
425        p.setBody(tb);
426        p.setHeader(MimeHeader.HEADER_CONTENT_TYPE,
427                    "text/html; prop1 = \"test\"; charset = \"utf-8\"; prop2 = \"test\"");
428        gotText = MimeUtility.getTextFromPart(p);
429        assertTrue(MimeUtility.mimeTypeMatches(p.getMimeType(), "text/html"));
430        assertEquals(UNICODE_EXPECT, gotText);
431
432        p.setBody(tb);
433        p.setHeader(MimeHeader.HEADER_CONTENT_TYPE,
434                    "text/html; prop1 = \"test\"; charset = \"windows-1252\"; prop2 = \"test\"");
435        gotText = MimeUtility.getTextFromPart(p);
436        assertTrue(MimeUtility.mimeTypeMatches(p.getMimeType(), "text/html"));
437        assertEquals(WINDOWS1252_EXPECT, gotText);
438
439        // TEST 2: Mixed case in Content-Type header:
440        // RFC 2045 says that content types, subtypes and parameter names
441        // are case-insensitive.
442
443        p.setBody(tb);
444        p.setHeader(MimeHeader.HEADER_CONTENT_TYPE, "TEXT/HtmL ; CHARseT=utf-8");
445        gotText = MimeUtility.getTextFromPart(p);
446        assertTrue(MimeUtility.mimeTypeMatches(p.getMimeType(), "text/html"));
447        assertEquals(UNICODE_EXPECT, gotText);
448
449        p.setBody(tb);
450        p.setHeader(MimeHeader.HEADER_CONTENT_TYPE, "TEXT/HtmL ; CHARseT=windows-1252");
451        gotText = MimeUtility.getTextFromPart(p);
452        assertTrue(MimeUtility.mimeTypeMatches(p.getMimeType(), "text/html"));
453        assertEquals(WINDOWS1252_EXPECT, gotText);
454
455        // TEST 3: Comments in Content-Type header field (from RFC 2045)
456        // Thunderbird permits comments after the end of a parameter, as in this example.
457        // Not something that I have seen in the real world outside RFC 2045.
458
459        p.setBody(tb);
460        p.setHeader(MimeHeader.HEADER_CONTENT_TYPE,
461                    "text/html; charset=utf-8 (Plain text)");
462        gotText = MimeUtility.getTextFromPart(p);
463        assertTrue(MimeUtility.mimeTypeMatches(p.getMimeType(), "text/html"));
464        // Note: This test does not pass.
465        //assertEquals(UNICODE_EXPECT, gotText);
466
467        p.setBody(tb);
468        p.setHeader(MimeHeader.HEADER_CONTENT_TYPE,
469                    "text/html; charset=windows-1252 (Plain text)");
470        gotText = MimeUtility.getTextFromPart(p);
471        assertTrue(MimeUtility.mimeTypeMatches(p.getMimeType(), "text/html"));
472        // Note: These tests does not pass.
473        //assertEquals(WINDOWS1252_EXPECT, gotText);
474    }
475
476    /** Tests for various aspects of mimeTypeMatches(String mimeType, String matchAgainst) */
477    public void testMimeTypeMatches() {
478        // 1. No match
479        assertFalse(MimeUtility.mimeTypeMatches("foo/bar", "TEXT/PLAIN"));
480
481        // 2. Match
482        assertTrue(MimeUtility.mimeTypeMatches("text/plain", "text/plain"));
483
484        // 3. Match (mixed case)
485        assertTrue(MimeUtility.mimeTypeMatches("text/plain", "TEXT/PLAIN"));
486        assertTrue(MimeUtility.mimeTypeMatches("TEXT/PLAIN", "text/plain"));
487
488        // 4. Match (wildcards)
489        assertTrue(MimeUtility.mimeTypeMatches("text/plain", "*/plain"));
490        assertTrue(MimeUtility.mimeTypeMatches("text/plain", "text/*"));
491        assertTrue(MimeUtility.mimeTypeMatches("text/plain", "*/*"));
492
493        // 5. No Match (wildcards)
494        assertFalse(MimeUtility.mimeTypeMatches("foo/bar", "*/plain"));
495        assertFalse(MimeUtility.mimeTypeMatches("foo/bar", "text/*"));
496    }
497
498    /** Tests for various aspects of mimeTypeMatches(String mimeType, String[] matchAgainst) */
499    public void testMimeTypeMatchesArray() {
500        // 1. Zero-length array
501        String[] arrayZero = new String[0];
502        assertFalse(MimeUtility.mimeTypeMatches("text/plain", arrayZero));
503
504        // 2. Single entry, no match
505        String[] arrayOne = new String[] { "text/plain" };
506        assertFalse(MimeUtility.mimeTypeMatches("foo/bar", arrayOne));
507
508        // 3. Single entry, match
509        assertTrue(MimeUtility.mimeTypeMatches("text/plain", arrayOne));
510
511        // 4. Multi entry, no match
512        String[] arrayTwo = new String[] { "text/plain", "match/this" };
513        assertFalse(MimeUtility.mimeTypeMatches("foo/bar", arrayTwo));
514
515        // 5. Multi entry, match first
516        assertTrue(MimeUtility.mimeTypeMatches("text/plain", arrayTwo));
517
518        // 6. Multi entry, match not first
519        assertTrue(MimeUtility.mimeTypeMatches("match/this", arrayTwo));
520    }
521
522    // TODO:  tests for decodeBody(InputStream in, String contentTransferEncoding)
523    // TODO:  tests for collectParts(Part part, ArrayList<Part> viewables, ArrayList<Part> attachments)
524
525}
526