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/*
* Copyright (C) 2012 Koji Ishii <kojiishi@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#if ENABLE(OPENTYPE_VERTICAL)
#include <gtest/gtest.h>
#include "platform/SharedBuffer.h"
#include "core/platform/graphics/opentype/OpenTypeTypes.h"
#include "wtf/RefPtr.h"
using namespace WebCore;
namespace {
struct TestTable : OpenType::TableBase {
OpenType::Fixed version;
OpenType::Int16 ascender;
template <typename T> const T* validateOffset(const SharedBuffer& buffer, uint16_t offset) const
{
return TableBase::validateOffset<T>(buffer, offset);
}
};
TEST(OpenTypeVerticalDataTest, ValidateTableTest)
{
RefPtr<SharedBuffer> buffer = SharedBuffer::create(sizeof(TestTable));
const TestTable* table = OpenType::validateTable<TestTable>(buffer);
EXPECT_TRUE(table);
buffer = SharedBuffer::create(sizeof(TestTable) - 1);
table = OpenType::validateTable<TestTable>(buffer);
EXPECT_FALSE(table);
buffer = SharedBuffer::create(sizeof(TestTable) + 1);
table = OpenType::validateTable<TestTable>(buffer);
EXPECT_TRUE(table);
}
TEST(OpenTypeVerticalDataTest, ValidateOffsetTest)
{
RefPtr<SharedBuffer> buffer = SharedBuffer::create(sizeof(TestTable));
const TestTable* table = OpenType::validateTable<TestTable>(buffer);
ASSERT_TRUE(table);
// Test overflow
EXPECT_FALSE(table->validateOffset<uint8_t>(*buffer, -1));
// uint8_t is valid for all offsets
for (uint16_t offset = 0; offset < sizeof(TestTable); offset++)
EXPECT_TRUE(table->validateOffset<uint8_t>(*buffer, offset));
EXPECT_FALSE(table->validateOffset<uint8_t>(*buffer, sizeof(TestTable)));
EXPECT_FALSE(table->validateOffset<uint8_t>(*buffer, sizeof(TestTable) + 1));
// For uint16_t, the last byte is invalid
for (uint16_t offset = 0; offset < sizeof(TestTable) - 1; offset++)
EXPECT_TRUE(table->validateOffset<uint16_t>(*buffer, offset));
EXPECT_FALSE(table->validateOffset<uint16_t>(*buffer, sizeof(TestTable) - 1));
}
} // namespace
#endif // ENABLE(OPENTYPE_VERTICAL)
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