1 /* 2 * Copyright (C) 2012 Koji Ishii <kojiishi (at) gmail.com> 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 */ 24 25 #include "config.h" 26 27 #if ENABLE(OPENTYPE_VERTICAL) 28 29 #include "platform/SharedBuffer.h" 30 #include "platform/fonts/opentype/OpenTypeTypes.h" 31 #include "wtf/RefPtr.h" 32 #include <gtest/gtest.h> 33 34 using namespace WebCore; 35 36 namespace { 37 38 struct TestTable : OpenType::TableBase { 39 OpenType::Fixed version; 40 OpenType::Int16 ascender; 41 42 template <typename T> const T* validateOffset(const SharedBuffer& buffer, uint16_t offset) const 43 { 44 return TableBase::validateOffset<T>(buffer, offset); 45 } 46 }; 47 48 TEST(OpenTypeVerticalDataTest, ValidateTableTest) 49 { 50 RefPtr<SharedBuffer> buffer = SharedBuffer::create(sizeof(TestTable)); 51 const TestTable* table = OpenType::validateTable<TestTable>(buffer); 52 EXPECT_TRUE(table); 53 54 buffer = SharedBuffer::create(sizeof(TestTable) - 1); 55 table = OpenType::validateTable<TestTable>(buffer); 56 EXPECT_FALSE(table); 57 58 buffer = SharedBuffer::create(sizeof(TestTable) + 1); 59 table = OpenType::validateTable<TestTable>(buffer); 60 EXPECT_TRUE(table); 61 } 62 63 TEST(OpenTypeVerticalDataTest, ValidateOffsetTest) 64 { 65 RefPtr<SharedBuffer> buffer = SharedBuffer::create(sizeof(TestTable)); 66 const TestTable* table = OpenType::validateTable<TestTable>(buffer); 67 ASSERT_TRUE(table); 68 69 // Test overflow 70 EXPECT_FALSE(table->validateOffset<uint8_t>(*buffer, -1)); 71 72 // uint8_t is valid for all offsets 73 for (uint16_t offset = 0; offset < sizeof(TestTable); offset++) 74 EXPECT_TRUE(table->validateOffset<uint8_t>(*buffer, offset)); 75 EXPECT_FALSE(table->validateOffset<uint8_t>(*buffer, sizeof(TestTable))); 76 EXPECT_FALSE(table->validateOffset<uint8_t>(*buffer, sizeof(TestTable) + 1)); 77 78 // For uint16_t, the last byte is invalid 79 for (uint16_t offset = 0; offset < sizeof(TestTable) - 1; offset++) 80 EXPECT_TRUE(table->validateOffset<uint16_t>(*buffer, offset)); 81 EXPECT_FALSE(table->validateOffset<uint16_t>(*buffer, sizeof(TestTable) - 1)); 82 } 83 84 } // namespace 85 86 #endif // ENABLE(OPENTYPE_VERTICAL) 87
