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      1 /*
      2  * Copyright (C) 2013 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 
     33 #include "wtf/text/TextCodecUTF8.h"
     34 
     35 #include "wtf/OwnPtr.h"
     36 #include "wtf/text/TextCodec.h"
     37 #include "wtf/text/TextEncoding.h"
     38 #include "wtf/text/TextEncodingRegistry.h"
     39 #include "wtf/text/WTFString.h"
     40 #include <gtest/gtest.h>
     41 
     42 namespace WTF {
     43 
     44 namespace {
     45 
     46 TEST(TextCodecUTF8, DecodeAscii)
     47 {
     48     TextEncoding encoding("UTF-8");
     49     OwnPtr<TextCodec> codec(newTextCodec(encoding));
     50 
     51     const char testCase[] = "HelloWorld";
     52     size_t testCaseSize = sizeof(testCase) - 1;
     53 
     54     bool sawError = false;
     55     const String& result = codec->decode(testCase, testCaseSize, true, false, sawError);
     56     EXPECT_FALSE(sawError);
     57     ASSERT_EQ(testCaseSize, result.length());
     58     for (size_t i = 0; i < testCaseSize; ++i) {
     59         EXPECT_EQ(testCase[i], result[i]);
     60     }
     61 }
     62 
     63 TEST(TextCodecUTF8, DecodeChineseCharacters)
     64 {
     65     TextEncoding encoding("UTF-8");
     66     OwnPtr<TextCodec> codec(newTextCodec(encoding));
     67 
     68     // "Kanji" in Chinese characters.
     69     const char testCase[] = "\xe6\xbc\xa2\xe5\xad\x97";
     70     size_t testCaseSize = sizeof(testCase) - 1;
     71 
     72     bool sawError = false;
     73     const String& result = codec->decode(testCase, testCaseSize, true, false, sawError);
     74     EXPECT_FALSE(sawError);
     75     ASSERT_EQ(2u, result.length());
     76     EXPECT_EQ(0x6f22U, result[0]);
     77     EXPECT_EQ(0x5b57U, result[1]);
     78 }
     79 
     80 TEST(TextCodecUTF8, Decode0xFF)
     81 {
     82     TextEncoding encoding("UTF-8");
     83     OwnPtr<TextCodec> codec(newTextCodec(encoding));
     84 
     85     bool sawError = false;
     86     const String& result = codec->decode("\xff", 1, true, false, sawError);
     87     EXPECT_TRUE(sawError);
     88     ASSERT_EQ(1u, result.length());
     89     EXPECT_EQ(0xFFFDU, result[0]);
     90 }
     91 
     92 } // namespace
     93 
     94 } // namespace WTF
     95