1 files changed, 119 insertions, 0 deletions
diff --git a/chromium/third_party/WebKit/Source/core/xml/parser/SharedBufferReaderTest.cpp b/chromium/third_party/WebKit/Source/core/xml/parser/SharedBufferReaderTest.cpp
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+++ b/chromium/third_party/WebKit/Source/core/xml/parser/SharedBufferReaderTest.cpp
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+/*
+ * Copyright (C) 2014 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 "core/xml/parser/SharedBufferReader.h"
+
+#include "platform/SharedBuffer.h"
+
+#include <algorithm>
+#include <cstdlib>
+#include <gtest/gtest.h>
+#include <vector>
+
+namespace WebCore {
+
+TEST(SharedBufferReaderTest, readDataWithNullSharedBuffer)
+{
+    SharedBufferReader reader(nullptr);
+    char buffer[32];
+
+    EXPECT_EQ(0, reader.readData(buffer, sizeof(buffer)));
+}
+
+TEST(SharedBufferReaderTest, readDataWith0BytesRequest)
+{
+    RefPtr<SharedBuffer> sharedBuffer = SharedBuffer::create();
+    SharedBufferReader reader(sharedBuffer);
+
+    EXPECT_EQ(0, reader.readData(0, 0));
+}
+
+TEST(SharedBufferReaderTest, readDataWithSizeBiggerThanSharedBufferSize)
+{
+    static const char testData[] = "hello";
+    RefPtr<SharedBuffer> sharedBuffer = SharedBuffer::create(testData, sizeof(testData));
+
+    SharedBufferReader reader(sharedBuffer);
+
+    const int extraBytes = 3;
+    char outputBuffer[sizeof(testData) + extraBytes];
+
+    const char initializationByte = 'a';
+    memset(outputBuffer, initializationByte, sizeof(outputBuffer));
+    EXPECT_EQ(sizeof(testData),
+        static_cast<size_t>(reader.readData(outputBuffer, sizeof(outputBuffer))));
+
+    EXPECT_TRUE(std::equal(testData, testData + sizeof(testData), outputBuffer));
+    // Check that the bytes past index sizeof(testData) were not touched.
+    EXPECT_EQ(extraBytes,
+        std::count(outputBuffer, outputBuffer + sizeof(outputBuffer), initializationByte));
+}
+
+TEST(SharedBufferReaderTest, readDataInMultiples)
+{
+    const int iterationsCount = 8;
+    const int bytesPerIteration = 64;
+
+    std::vector<char> testData(iterationsCount * bytesPerIteration);
+    std::generate(testData.begin(), testData.end(), &std::rand);
+
+    RefPtr<SharedBuffer> sharedBuffer = SharedBuffer::create(&testData[0], testData.size());
+    SharedBufferReader reader(sharedBuffer);
+
+    std::vector<char> destinationVector(testData.size());
+
+    for (int i = 0; i < iterationsCount; ++i) {
+        const int offset = i * bytesPerIteration;
+        const int bytesRead = reader.readData(&destinationVector[0] + offset, bytesPerIteration);
+        EXPECT_EQ(bytesPerIteration, bytesRead);
+    }
+
+    EXPECT_TRUE(std::equal(testData.begin(), testData.end(), destinationVector.begin()));
+}
+
+TEST(SharedBufferReaderTest, clearSharedBufferBetweenCallsToReadData)
+{
+    std::vector<char> testData(128);
+    std::generate(testData.begin(), testData.end(), &std::rand);
+
+    RefPtr<SharedBuffer> sharedBuffer = SharedBuffer::create(&testData[0], testData.size());
+    SharedBufferReader reader(sharedBuffer);
+
+    std::vector<char> destinationVector(testData.size());
+    const int bytesToRead = testData.size() / 2;
+    EXPECT_EQ(bytesToRead, reader.readData(&destinationVector[0], bytesToRead));
+
+    sharedBuffer->clear();
+
+    EXPECT_EQ(0, reader.readData(&destinationVector[0], bytesToRead));
+}
+
+} // namespace WebCore