15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2012 Koji Ishii <kojiishi@gmail.com> 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Redistribution and use in source and binary forms, with or without 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modification, are permitted provided that the following conditions 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * are met: 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 1. Redistributions of source code must retain the above copyright 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer. 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 2. Redistributions in binary form must reproduce the above copyright 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer in the 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * documentation and/or other materials provided with the distribution. 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "config.h" 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#if ENABLE(OPENTYPE_VERTICAL) 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 291e202183a5dc46166763171984b285173f8585e5Torne (Richard Coles)#include "platform/SharedBuffer.h" 3051b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles)#include "platform/fonts/opentype/OpenTypeTypes.h" 31591b958dee2cf159d33a0b931e6231072eaf38d5Ben Murdoch#include "wtf/RefPtr.h" 32f91f5fa1608c2cdd9af1842fb5dadbe78275be2aBo Liu#include <gtest/gtest.h> 335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 34c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)using namespace blink; 355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)namespace { 375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)struct TestTable : OpenType::TableBase { 395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) OpenType::Fixed version; 405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) OpenType::Int16 ascender; 415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) template <typename T> const T* validateOffset(const SharedBuffer& buffer, uint16_t offset) const 435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) { 445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return TableBase::validateOffset<T>(buffer, offset); 455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)}; 475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)TEST(OpenTypeVerticalDataTest, ValidateTableTest) 495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RefPtr<SharedBuffer> buffer = SharedBuffer::create(sizeof(TestTable)); 515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) const TestTable* table = OpenType::validateTable<TestTable>(buffer); 525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) EXPECT_TRUE(table); 535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) buffer = SharedBuffer::create(sizeof(TestTable) - 1); 555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) table = OpenType::validateTable<TestTable>(buffer); 565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) EXPECT_FALSE(table); 575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) buffer = SharedBuffer::create(sizeof(TestTable) + 1); 595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) table = OpenType::validateTable<TestTable>(buffer); 605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) EXPECT_TRUE(table); 615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)TEST(OpenTypeVerticalDataTest, ValidateOffsetTest) 645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RefPtr<SharedBuffer> buffer = SharedBuffer::create(sizeof(TestTable)); 665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) const TestTable* table = OpenType::validateTable<TestTable>(buffer); 675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT_TRUE(table); 685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Test overflow 70197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch EXPECT_FALSE(table->validateOffset<uint8_t>(*buffer, 0xFFFF)); 715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // uint8_t is valid for all offsets 735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) for (uint16_t offset = 0; offset < sizeof(TestTable); offset++) 745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) EXPECT_TRUE(table->validateOffset<uint8_t>(*buffer, offset)); 755c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) EXPECT_FALSE(table->validateOffset<uint8_t>(*buffer, sizeof(TestTable))); 765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) EXPECT_FALSE(table->validateOffset<uint8_t>(*buffer, sizeof(TestTable) + 1)); 775c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // For uint16_t, the last byte is invalid 795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) for (uint16_t offset = 0; offset < sizeof(TestTable) - 1; offset++) 805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) EXPECT_TRUE(table->validateOffset<uint16_t>(*buffer, offset)); 815c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) EXPECT_FALSE(table->validateOffset<uint16_t>(*buffer, sizeof(TestTable) - 1)); 825c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 835c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} // namespace 855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 865c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#endif // ENABLE(OPENTYPE_VERTICAL) 87