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 "gtest/gtest.h"
18#include "sample/chromium/font_subsetter.h"
19#include "test/test_data.h"
20#include "test/test_font_utils.h"
21
22namespace {
23  // Use an additional variable to easily change name for testing.
24  const char* kInputFileName = sfntly::SAMPLE_TTF_FILE;
25  const char* kFontName = "Tuffy";
26  const char* kOutputFileName = "tuffy-s.ttf";
27  // The subset we want: Hello, world!
28  // The array is unsorted to verify that the subsetter gets the glyph id
29  // correctly.
30  const unsigned int kGlyphIds[] = { 43, 72, 79, 82, 15, 3, 90, 85, 71, 4 };
31  const unsigned int kGlyphIdsCount = sizeof(kGlyphIds) / sizeof(unsigned int);
32}
33
34// This function is deliberately located at global namespace.
35bool TestChromeSubsetter() {
36  sfntly::ByteVector input_buffer;
37  sfntly::LoadFile(kInputFileName, &input_buffer);
38  EXPECT_GT(input_buffer.size(), (size_t)0);
39
40  unsigned char* output_buffer = NULL;
41  int output_length =
42      SfntlyWrapper::SubsetFont(kFontName,
43                                &(input_buffer[0]),
44                                input_buffer.size(),
45                                kGlyphIds,
46                                kGlyphIdsCount,
47                                &output_buffer);
48
49  EXPECT_GT(output_length, 0);
50
51  if (output_length > 0) {
52    FILE* output_file = NULL;
53#if defined WIN32
54    fopen_s(&output_file, kOutputFileName, "wb");
55#else
56    output_file = fopen(kOutputFileName, "wb");
57#endif
58    EXPECT_TRUE((output_file != NULL));
59    if (output_file) {
60      int byte_count = fwrite(output_buffer, 1, output_length, output_file);
61      EXPECT_EQ(byte_count, output_length);
62      fflush(output_file);
63      fclose(output_file);
64    }
65
66    delete[] output_buffer;
67    return true;
68  }
69
70  return false;
71}
72
73TEST(ChromeSubsetter, All) {
74  EXPECT_TRUE(TestChromeSubsetter());
75}
76