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/*
* Copyright 2011 Google Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <string.h>
#include <vector>
#include <string>
#include <algorithm>
#include "sfntly/font.h"
#include "sfntly/font_factory.h"
#include "sfntly/table/core/cmap_table.h"
#include "sfntly/tag.h"
#include "sfntly/port/type.h"
#include "sfntly/port/refcount.h"
#include "test/test_data.h"
#include "test/test_font_utils.h"
#include "gtest/gtest.h"
#if GTEST_HAS_PARAM_TEST
namespace sfntly {
using ::testing::TestWithParam;
using ::testing::Values;
typedef std::vector<bool> BitSet;
class CMapIteratorTestCase {
public:
CMapIteratorTestCase(int32_t platform_id, int32_t encoding_id,
const char* file_name)
: platform_id_(platform_id),
encoding_id_(encoding_id),
file_name_(file_name) {
}
~CMapIteratorTestCase() {}
int32_t platform_id() const { return platform_id_; }
int32_t encoding_id() const { return encoding_id_; }
const char* file_name() const { return file_name_; }
private:
int32_t platform_id_;
int32_t encoding_id_;
const char* file_name_;
};
class CMapIteratorTests
: public ::testing::TestWithParam<CMapIteratorTestCase> {
public:
virtual void SetUp();
virtual void TearDown() {}
BitSet* GenerateCMapEntries(int32_t start, int32_t count);
int32_t CompareCMapIterAndBitSet(CMapTable::CMap::CharacterIterator*
character_iterator,
BitSet* bit_set);
Ptr<CMapTable::CMap> cmap_;
};
void CMapIteratorTests::SetUp() {
FontArray fonts;
Ptr<FontFactory> font_factory;
const char* file_name = GetParam().file_name();
LoadFont(file_name, font_factory, &fonts);
Ptr<Font> font;
font.Attach(fonts[0].Detach());
Ptr<CMapTable> cmap_table = down_cast<CMapTable*>(font->GetTable(Tag::cmap));
ASSERT_FALSE(cmap_table == NULL);
cmap_.Attach(cmap_table->GetCMap(GetParam().platform_id(),
GetParam().encoding_id()));
ASSERT_FALSE(cmap_ == NULL);
}
BitSet* CMapIteratorTests::GenerateCMapEntries(int32_t start, int32_t count) {
BitSet* entries = new BitSet(count);
for (int32_t c = start; c < start + count; ++c) {
int32_t g = cmap_->GlyphId(c);
if (g != CMapTable::NOTDEF)
(*entries)[c] = true;
}
return entries;
}
int32_t
CMapIteratorTests::
CompareCMapIterAndBitSet(CMapTable::CMap::CharacterIterator* character_iterator,
BitSet* bit_set) {
int32_t iterator_not_bitset_count = 0;
BitSet::iterator end = bit_set->end(),
beginning = bit_set->begin(),
init_beginning = beginning,
current = std::find(beginning, end, true);
for (int32_t next_bit = current - beginning;
character_iterator->HasNext() && current != end;
next_bit = current - init_beginning) {
int32_t c = character_iterator->Next();
EXPECT_TRUE(c <= next_bit || current == end);
if (!(c <= next_bit || current == end))
return -1;
if (c == next_bit) {
beginning = current + 1;
current = std::find(beginning, end, true);
} else {
iterator_not_bitset_count++;
}
}
EXPECT_EQ(end, current);
#if defined (SFNTLY_DEBUG_CMAP)
fprintf(stderr, "%s %d: Differences between iterator and bitset: %d\n",
cmap_->format(), GetParam().file_name(), iterator_not_bitset_count);
#endif
return iterator_not_bitset_count;
}
TEST_P(CMapIteratorTests, IteratorTest) {
BitSet* bit_set = GenerateCMapEntries(0, 0x10ffff);
CMapTable::CMap::CharacterIterator* character_iterator = NULL;
character_iterator = cmap_->Iterator();
EXPECT_NE(character_iterator,
reinterpret_cast<CMapTable::CMap::CharacterIterator*>(NULL));
CompareCMapIterAndBitSet(character_iterator, bit_set);
delete character_iterator;
delete bit_set;
}
CMapIteratorTestCase kCMapIteratorTestsTestCases[] = {
CMapIteratorTestCase(CMapTable::WINDOWS_BMP.platform_id,
CMapTable::WINDOWS_BMP.encoding_id,
SAMPLE_TTF_FILE)
};
INSTANTIATE_TEST_CASE_P(CMapIteratorTests,
CMapIteratorTests,
::testing::ValuesIn(kCMapIteratorTestsTestCases));
}
#else
TEST(DummyTest, ValueParameterizedTestsAreNotSupportedOnThisPlatform) {}
#endif // GTEST_HAS_PARAM
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