BinaryStream_unittest.cpp

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Author : Stuart Morgan
Date : 2019-08-14 12:25:12
Hash : 9d737966
Message : Standardize copyright notices to project style For all "ANGLE Project" copyrights, standardize to the format specified by the style guide. Changes: - "Copyright (c)" and "Copyright(c)" changed to just "Copyright". - Removed the second half of date ranges ("Y1Y1-Y2Y2"->"Y1Y1"). - Fixed a small number of files that had no copyright date using the initial commit year from the version control history. - Fixed one instance of copyright being "The ANGLE Project" rather than "The ANGLE Project Authors" These changes are applied both to the copyright of source file, and where applicable to copyright statements that are generated by templates. BUG=angleproject:3811 Change-Id: I973dd65e4ef9deeba232d5be74c768256a0eb2e5 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1754397 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>

src/libANGLE/BinaryStream_unittest.cpp

//
// Copyright 2015 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//

// BinaryStream_unittest.cpp: Unit tests of the binary stream classes.

#include <gtest/gtest.h>

#include "libANGLE/BinaryStream.h"

namespace angle
{

// Test that errors are properly generated for overflows.
TEST(BinaryInputStream, Overflow)
{
    const uint8_t goodValue = 2;
    const uint8_t badValue  = 255;

    const size_t dataSize = 1024;
    const size_t slopSize = 1024;

    std::vector<uint8_t> data(dataSize + slopSize);
    std::fill(data.begin(), data.begin() + dataSize, goodValue);
    std::fill(data.begin() + dataSize, data.end(), badValue);

    std::vector<uint8_t> outputData(dataSize);

    auto checkDataIsSafe = [=](uint8_t item) { return item == goodValue; };

    {
        // One large read
        gl::BinaryInputStream stream(data.data(), dataSize);
        stream.readBytes(outputData.data(), dataSize);
        ASSERT_FALSE(stream.error());
        ASSERT_TRUE(std::all_of(outputData.begin(), outputData.end(), checkDataIsSafe));
        ASSERT_TRUE(stream.endOfStream());
    }

    {
        // Two half-sized reads
        gl::BinaryInputStream stream(data.data(), dataSize);
        stream.readBytes(outputData.data(), dataSize / 2);
        ASSERT_FALSE(stream.error());
        stream.readBytes(outputData.data() + dataSize / 2, dataSize / 2);
        ASSERT_FALSE(stream.error());
        ASSERT_TRUE(std::all_of(outputData.begin(), outputData.end(), checkDataIsSafe));
        ASSERT_TRUE(stream.endOfStream());
    }

    {
        // One large read that is too big
        gl::BinaryInputStream stream(data.data(), dataSize);
        stream.readBytes(outputData.data(), dataSize + 1);
        ASSERT_TRUE(stream.error());
    }

    {
        // Two reads, one that overflows the offset
        gl::BinaryInputStream stream(data.data(), dataSize);
        stream.readBytes(outputData.data(), dataSize - 1);
        ASSERT_FALSE(stream.error());
        stream.readBytes(outputData.data(), std::numeric_limits<size_t>::max() - dataSize - 2);
    }
}
}  // namespace angle

kc3-lang/angle/src/libANGLE/BinaryStream_unittest.cpp

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kc3-lang/angle /src/libANGLE/BinaryStream_unittest.cpp