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 "sfntly/font.h"
19#include "sfntly/font_factory.h"
20#include "sfntly/table/core/font_header_table.h"
21#include "sfntly/tag.h"
22#include "sfntly/data/memory_byte_array.h"
23#include "sfntly/port/endian.h"
24#include "sfntly/port/file_input_stream.h"
25#include "sfntly/port/memory_output_stream.h"
26#include "test/test_data.h"
27#include "test/test_font_utils.h"
28
29namespace sfntly {
30
31bool TestOTFBasicEditing() {
32  FontFactoryPtr factory;
33  factory.Attach(FontFactory::GetInstance());
34  FontBuilderArray font_builder_array;
35  BuilderForFontFile(SAMPLE_TTF_FILE, factory, &font_builder_array);
36  FontBuilderPtr font_builder = font_builder_array[0];
37
38  // ensure the builder is not bogus
39  EXPECT_TRUE(font_builder != NULL);
40  TableBuilderMap* builder_map = font_builder->table_builders();
41  EXPECT_TRUE(builder_map != NULL);
42  IntegerSet builder_tags;
43  for (TableBuilderMap::iterator i = builder_map->begin(),
44                                 e = builder_map->end(); i != e; ++i) {
45    EXPECT_TRUE(i->second != NULL);
46    if (i->second == NULL) {
47      char tag[5] = {0};
48      int32_t value = ToBE32(i->first);
49      memcpy(tag, &value, 4);
50      fprintf(stderr, "tag %s does not have valid builder\n", tag);
51    } else {
52      builder_tags.insert(i->first);
53    }
54  }
55
56  FontHeaderTableBuilderPtr header_builder =
57      down_cast<FontHeaderTable::Builder*>(
58          font_builder->GetTableBuilder(Tag::head));
59  int64_t mod_date = header_builder->Modified();
60  header_builder->SetModified(mod_date + 1);
61  FontPtr font;
62  font.Attach(font_builder->Build());
63
64  // ensure every table had a builder
65  const TableMap* table_map = font->GetTableMap();
66  for (TableMap::const_iterator i = table_map->begin(), e = table_map->end();
67                                i != e; ++i) {
68    TablePtr table = (*i).second;
69    HeaderPtr header = table->header();
70    EXPECT_TRUE(builder_tags.find(header->tag()) != builder_tags.end());
71    builder_tags.erase(header->tag());
72  }
73  EXPECT_TRUE(builder_tags.empty());
74
75  FontHeaderTablePtr header =
76      down_cast<FontHeaderTable*>(font->GetTable(Tag::head));
77  int64_t after_mod_date = header->Modified();
78  EXPECT_EQ(mod_date + 1, after_mod_date);
79
80  // Checksum correctness of builder.
81  TablePtr post = font->GetTable(Tag::post);
82  EXPECT_EQ(post->CalculatedChecksum(), TTF_CHECKSUM[SAMPLE_TTF_POST]);
83  return true;
84}
85
86}  // namespace sfntly
87
88TEST(OTFBasicEditing, All) {
89  ASSERT_TRUE(sfntly::TestOTFBasicEditing());
90}
91