1 /* 2 * Copyright 2011 Google Inc. All Rights Reserved. 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 17 #include <stdio.h> 18 19 #include "gtest/gtest.h" 20 #include "sfntly/port/file_input_stream.h" 21 #include "sfntly/data/font_input_stream.h" 22 #include "test/test_data.h" 23 24 namespace sfntly { 25 26 bool TestFileInputStream() { 27 FILE* file_handle = NULL; 28 #if defined (WIN32) 29 fopen_s(&file_handle, SAMPLE_TTF_FILE, "rb"); 30 #else 31 file_handle = fopen(SAMPLE_TTF_FILE, "rb"); 32 #endif 33 if (file_handle == NULL) { 34 return false; 35 } 36 fseek(file_handle, 0, SEEK_END); 37 size_t length = ftell(file_handle); 38 fseek(file_handle, 0, SEEK_SET); 39 ByteVector b1; 40 b1.resize(length); 41 size_t bytes_read = fread(&(b1[0]), 1, length, file_handle); 42 EXPECT_EQ(bytes_read, length); 43 fclose(file_handle); 44 45 // Full file reading test 46 FileInputStream is; 47 is.Open(SAMPLE_TTF_FILE); 48 EXPECT_EQ(length, (size_t)is.Available()); 49 ByteVector b2; 50 is.Read(&b2, 0, length); 51 is.Close(); 52 EXPECT_EQ(memcmp(&(b1[0]), &(b2[0]), length), 0); 53 b2.clear(); 54 55 // Partial reading test 56 is.Open(SAMPLE_TTF_FILE); 57 is.Skip(89); 58 is.Read(&b2, 0, 100); 59 EXPECT_EQ(memcmp(&(b1[89]), &(b2[0]), 100), 0); 60 b2.clear(); 61 62 // Skip test 63 is.Skip(-89); 64 is.Read(&b2, 0, 100); 65 EXPECT_EQ(memcmp(&(b1[100]), &(b2[0]), 100), 0); 66 b2.clear(); 67 is.Skip(100); 68 is.Read(&b2, 0, 100); 69 EXPECT_EQ(memcmp(&(b1[300]), &(b2[0]), 100), 0); 70 is.Skip(-400); 71 b2.clear(); 72 73 // Offset test 74 is.Read(&b2, 0, 100); 75 is.Read(&b2, 100, 100); 76 EXPECT_EQ(memcmp(&(b1[0]), &(b2[0]), 200), 0); 77 78 // Unread test 79 ByteVector b3; 80 b3.resize(200); 81 is.Unread(&b3); 82 EXPECT_EQ(memcmp(&(b3[0]), &(b2[0]), 200), 0); 83 84 return true; 85 } 86 87 bool TestFontInputStreamBasic() { 88 FILE* file_handle = NULL; 89 #if defined (WIN32) 90 fopen_s(&file_handle, SAMPLE_TTF_FILE, "rb"); 91 #else 92 file_handle = fopen(SAMPLE_TTF_FILE, "rb"); 93 #endif 94 if (file_handle == NULL) { 95 return false; 96 } 97 fseek(file_handle, 0, SEEK_END); 98 size_t length = ftell(file_handle); 99 fseek(file_handle, 0, SEEK_SET); 100 ByteVector b1; 101 b1.resize(length); 102 size_t bytes_read = fread(&(b1[0]), 1, length, file_handle); 103 EXPECT_EQ(bytes_read, length); 104 fclose(file_handle); 105 106 FileInputStream is; 107 is.Open(SAMPLE_TTF_FILE); 108 FontInputStream font_is1(&is); 109 EXPECT_EQ((size_t)font_is1.Available(), length); 110 111 ByteVector b2; 112 font_is1.Read(&b2, 0, length); 113 font_is1.Close(); 114 EXPECT_EQ(memcmp(&(b1[0]), &(b2[0]), length), 0); 115 b2.clear(); 116 117 is.Open(SAMPLE_TTF_FILE); 118 is.Skip(89); 119 FontInputStream font_is2(&is, 200); 120 font_is2.Read(&b2, 0, 100); 121 EXPECT_EQ(memcmp(&(b1[89]), &(b2[0]), 100), 0); 122 font_is2.Read(&b2, 100, 100); 123 EXPECT_EQ(memcmp(&(b1[89]), &(b2[0]), 200), 0); 124 b2.clear(); 125 font_is2.Skip(-200); 126 font_is2.Read(&b2, 0, 100); 127 EXPECT_EQ(memcmp(&(b1[89]), &(b2[0]), 100), 0); 128 129 return true; 130 } 131 132 bool TestFontInputStreamTableLoading() { 133 FileInputStream is; 134 is.Open(SAMPLE_TTF_FILE); 135 FontInputStream font_is(&is); 136 137 font_is.Skip(TTF_OFFSET[SAMPLE_TTF_FEAT]); 138 FontInputStream gdef_is(&font_is, TTF_LENGTH[SAMPLE_TTF_FEAT]); 139 ByteVector feat_data; 140 gdef_is.Read(&feat_data, 0, TTF_LENGTH[SAMPLE_TTF_FEAT]); 141 EXPECT_EQ(memcmp(&(feat_data[0]), TTF_FEAT_DATA, 142 TTF_LENGTH[SAMPLE_TTF_FEAT]), 0); 143 144 return true; 145 } 146 147 } // namespace sfntly 148 149 TEST(FileIO, All) { 150 ASSERT_TRUE(sfntly::TestFileInputStream()); 151 ASSERT_TRUE(sfntly::TestFontInputStreamBasic()); 152 ASSERT_TRUE(sfntly::TestFontInputStreamTableLoading()); 153 } 154
