| /* |
| * Copyright (C) 2013 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT |
| * OWNER OR 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" |
| #include "platform/SharedBuffer.h" |
| |
| #include "platform/testing/TestingPlatformSupport.h" |
| #include "public/platform/WebDiscardableMemory.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "wtf/RefPtr.h" |
| #include "wtf/Vector.h" |
| #include <algorithm> |
| #include <cstdlib> |
| |
| namespace blink { |
| |
| TEST(SharedBufferTest, getAsBytes) |
| { |
| char testData0[] = "Hello"; |
| char testData1[] = "World"; |
| char testData2[] = "Goodbye"; |
| |
| RefPtr<SharedBuffer> sharedBuffer = SharedBuffer::create(testData0, strlen(testData0)); |
| sharedBuffer->append(testData1, strlen(testData1)); |
| sharedBuffer->append(testData2, strlen(testData2)); |
| |
| const unsigned size = sharedBuffer->size(); |
| OwnPtr<char[]> data = adoptArrayPtr(new char[size]); |
| ASSERT_TRUE(sharedBuffer->getAsBytes(data.get(), size)); |
| |
| char expectedConcatenation[] = "HelloWorldGoodbye"; |
| ASSERT_EQ(strlen(expectedConcatenation), size); |
| EXPECT_EQ(0, memcmp(expectedConcatenation, data.get(), strlen(expectedConcatenation))); |
| } |
| |
| TEST(SharedBufferTest, getAsBytesLargeSegments) |
| { |
| Vector<char> vector0(0x4000); |
| for (size_t i = 0; i < vector0.size(); ++i) |
| vector0[i] = 'a'; |
| Vector<char> vector1(0x4000); |
| for (size_t i = 0; i < vector1.size(); ++i) |
| vector1[i] = 'b'; |
| Vector<char> vector2(0x4000); |
| for (size_t i = 0; i < vector2.size(); ++i) |
| vector2[i] = 'c'; |
| |
| RefPtr<SharedBuffer> sharedBuffer = SharedBuffer::adoptVector(vector0); |
| sharedBuffer->append(vector1); |
| sharedBuffer->append(vector2); |
| |
| const unsigned size = sharedBuffer->size(); |
| OwnPtr<char[]> data = adoptArrayPtr(new char[size]); |
| ASSERT_TRUE(sharedBuffer->getAsBytes(data.get(), size)); |
| |
| ASSERT_EQ(0x4000U + 0x4000U + 0x4000U, size); |
| int position = 0; |
| for (int i = 0; i < 0x4000; ++i) { |
| EXPECT_EQ('a', data[position]); |
| ++position; |
| } |
| for (int i = 0; i < 0x4000; ++i) { |
| EXPECT_EQ('b', data[position]); |
| ++position; |
| } |
| for (int i = 0; i < 0x4000; ++i) { |
| EXPECT_EQ('c', data[position]); |
| ++position; |
| } |
| } |
| |
| TEST(SharedBufferTest, copy) |
| { |
| Vector<char> testData(10000); |
| std::generate(testData.begin(), testData.end(), &std::rand); |
| |
| unsigned length = testData.size(); |
| RefPtr<SharedBuffer> sharedBuffer = SharedBuffer::create(testData.data(), length); |
| sharedBuffer->append(testData.data(), length); |
| sharedBuffer->append(testData.data(), length); |
| sharedBuffer->append(testData.data(), length); |
| // sharedBuffer must contain data more than segmentSize (= 0x1000) to check copy(). |
| ASSERT_EQ(length * 4, sharedBuffer->size()); |
| |
| RefPtr<SharedBuffer> clone = sharedBuffer->copy(); |
| ASSERT_EQ(length * 4, clone->size()); |
| ASSERT_EQ(0, memcmp(clone->data(), sharedBuffer->data(), clone->size())); |
| |
| clone->append(testData.data(), length); |
| ASSERT_EQ(length * 5, clone->size()); |
| } |
| |
| TEST(SharedBufferTest, constructorWithSizeOnly) |
| { |
| unsigned length = 10000; |
| RefPtr<SharedBuffer> sharedBuffer = SharedBuffer::create(length); |
| ASSERT_EQ(length, sharedBuffer->size()); |
| |
| // The internal flat buffer should have been resized to |length| therefore getSomeData() should |
| // directly return the full size. |
| const char* data; |
| ASSERT_EQ(length, sharedBuffer->getSomeData(data, 0)); |
| } |
| |
| TEST(SharedBufferTest, createPurgeable) |
| { |
| Vector<char> testData(30000); |
| std::generate(testData.begin(), testData.end(), &std::rand); |
| |
| TestingPlatformSupport::Config config; |
| config.hasDiscardableMemorySupport = true; |
| TestingPlatformSupport platformWithDiscardableMemorySupport(config); |
| |
| unsigned length = testData.size(); |
| RefPtr<SharedBuffer> sharedBuffer = SharedBuffer::createPurgeable(testData.data(), length); |
| ASSERT_EQ(length, sharedBuffer->size()); |
| // Merge the segments into a single vector. |
| const char* data = sharedBuffer->data(); |
| ASSERT_EQ(0, memcmp(data, testData.data(), length)); |
| |
| // Do another append + merge the segments again. |
| size_t previousTestDataSize = testData.size(); |
| testData.resize(2 * previousTestDataSize); |
| std::generate(testData.begin() + previousTestDataSize, testData.end(), &std::rand); |
| sharedBuffer->append(testData.data() + previousTestDataSize, previousTestDataSize); |
| ASSERT_EQ(0, memcmp(data, testData.data(), length)); |
| } |
| |
| } // namespace blink |