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author | Andras Becsi <andras.becsi@digia.com> | 2014-03-18 13:16:26 +0100 |
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committer | Frederik Gladhorn <frederik.gladhorn@digia.com> | 2014-03-20 15:55:39 +0100 |
commit | 3f0f86b0caed75241fa71c95a5d73bc0164348c5 (patch) | |
tree | 92b9fb00f2e9e90b0be2262093876d4f43b6cd13 /chromium/third_party/WebKit/Source/wtf/CheckedArithmeticTest.cpp | |
parent | e90d7c4b152c56919d963987e2503f9909a666d2 (diff) | |
download | qtwebengine-chromium-3f0f86b0caed75241fa71c95a5d73bc0164348c5.tar.gz |
Update to new stable branch 1750
This also includes an updated ninja and chromium dependencies
needed on Windows.
Change-Id: Icd597d80ed3fa4425933c9f1334c3c2e31291c42
Reviewed-by: Zoltan Arvai <zarvai@inf.u-szeged.hu>
Reviewed-by: Zeno Albisser <zeno.albisser@digia.com>
Diffstat (limited to 'chromium/third_party/WebKit/Source/wtf/CheckedArithmeticTest.cpp')
-rw-r--r-- | chromium/third_party/WebKit/Source/wtf/CheckedArithmeticTest.cpp | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/chromium/third_party/WebKit/Source/wtf/CheckedArithmeticTest.cpp b/chromium/third_party/WebKit/Source/wtf/CheckedArithmeticTest.cpp new file mode 100644 index 00000000000..650e3ac29c5 --- /dev/null +++ b/chromium/third_party/WebKit/Source/wtf/CheckedArithmeticTest.cpp @@ -0,0 +1,151 @@ +/* + * Copyright (C) 2011 Apple 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: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * + * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 "wtf/CheckedArithmetic.h" +#include <gtest/gtest.h> + +namespace { + +#define CheckedArithmeticTest(type, coerceLiteral, MixedSignednessTest) \ + TEST(WTF, Checked_##type) \ + { \ + Checked<type, RecordOverflow> value; \ + EXPECT_EQ(coerceLiteral(0), value.unsafeGet()); \ + EXPECT_EQ(std::numeric_limits<type>::max(), (value + std::numeric_limits<type>::max()).unsafeGet()); \ + EXPECT_EQ(std::numeric_limits<type>::max(), (std::numeric_limits<type>::max() + value).unsafeGet()); \ + EXPECT_EQ(std::numeric_limits<type>::min(), (value + std::numeric_limits<type>::min()).unsafeGet()); \ + EXPECT_EQ(std::numeric_limits<type>::min(), (std::numeric_limits<type>::min() + value).unsafeGet()); \ + EXPECT_EQ(coerceLiteral(0), (value * coerceLiteral(0)).unsafeGet()); \ + EXPECT_EQ(coerceLiteral(0), (coerceLiteral(0) * value).unsafeGet()); \ + EXPECT_EQ(coerceLiteral(0), (value * value).unsafeGet()); \ + EXPECT_EQ(coerceLiteral(0), (value - coerceLiteral(0)).unsafeGet()); \ + EXPECT_EQ(coerceLiteral(0), (coerceLiteral(0) - value).unsafeGet()); \ + EXPECT_EQ(coerceLiteral(0), (value - value).unsafeGet()); \ + EXPECT_EQ(coerceLiteral(0), (value++).unsafeGet()); \ + EXPECT_EQ(coerceLiteral(1), (value--).unsafeGet()); \ + EXPECT_EQ(coerceLiteral(1), (++value).unsafeGet()); \ + EXPECT_EQ(coerceLiteral(0), (--value).unsafeGet()); \ + EXPECT_EQ(coerceLiteral(10), (value += coerceLiteral(10)).unsafeGet()); \ + EXPECT_EQ(coerceLiteral(10), value.unsafeGet()); \ + EXPECT_EQ(coerceLiteral(100), (value *= coerceLiteral(10)).unsafeGet()); \ + EXPECT_EQ(coerceLiteral(100), value.unsafeGet()); \ + EXPECT_EQ(coerceLiteral(0), (value -= coerceLiteral(100)).unsafeGet()); \ + EXPECT_EQ(coerceLiteral(0), value.unsafeGet()); \ + value = 10; \ + EXPECT_EQ(coerceLiteral(10), value.unsafeGet()); \ + EXPECT_EQ(coerceLiteral(0), (value - coerceLiteral(10)).unsafeGet()); \ + EXPECT_EQ(coerceLiteral(10), value.unsafeGet()); \ + value = std::numeric_limits<type>::min(); \ + EXPECT_EQ(true, (Checked<type, RecordOverflow>(value - coerceLiteral(1))).hasOverflowed()); \ + EXPECT_EQ(true, !((value--).hasOverflowed())); \ + EXPECT_EQ(true, value.hasOverflowed()); \ + value = std::numeric_limits<type>::max(); \ + EXPECT_EQ(true, !value.hasOverflowed()); \ + EXPECT_EQ(true, (Checked<type, RecordOverflow>(value + coerceLiteral(1))).hasOverflowed()); \ + EXPECT_EQ(true, !(value++).hasOverflowed()); \ + EXPECT_EQ(true, value.hasOverflowed()); \ + value = std::numeric_limits<type>::max(); \ + EXPECT_EQ(true, (value += coerceLiteral(1)).hasOverflowed()); \ + EXPECT_EQ(true, value.hasOverflowed()); \ + value = 10; \ + type _value = 0; \ + EXPECT_EQ(true, CheckedState::DidNotOverflow == (value * Checked<type, RecordOverflow>(0)).safeGet(_value)); \ + _value = 0; \ + EXPECT_EQ(true, CheckedState::DidNotOverflow == (Checked<type, RecordOverflow>(0) * value).safeGet(_value)); \ + _value = 0; \ + EXPECT_EQ(true, CheckedState::DidOverflow == (value * Checked<type, RecordOverflow>(std::numeric_limits<type>::max())).safeGet(_value)); \ + _value = 0; \ + EXPECT_EQ(true, CheckedState::DidOverflow == (Checked<type, RecordOverflow>(std::numeric_limits<type>::max()) * value).safeGet(_value)); \ + value = 0; \ + _value = 0; \ + EXPECT_EQ(true, CheckedState::DidNotOverflow == (value * Checked<type, RecordOverflow>(std::numeric_limits<type>::max())).safeGet(_value)); \ + _value = 0; \ + EXPECT_EQ(true, CheckedState::DidNotOverflow == (Checked<type, RecordOverflow>(std::numeric_limits<type>::max()) * value).safeGet(_value)); \ + value = 1; \ + _value = 0; \ + EXPECT_EQ(true, CheckedState::DidNotOverflow == (value * Checked<type, RecordOverflow>(std::numeric_limits<type>::max())).safeGet(_value)); \ + _value = 0; \ + EXPECT_EQ(true, CheckedState::DidNotOverflow == (Checked<type, RecordOverflow>(std::numeric_limits<type>::max()) * value).safeGet(_value)); \ + _value = 0; \ + value = 0; \ + EXPECT_EQ(true, CheckedState::DidNotOverflow == (value * Checked<type, RecordOverflow>(std::numeric_limits<type>::max())).safeGet(_value)); \ + _value = 0; \ + EXPECT_EQ(true, CheckedState::DidNotOverflow == (Checked<type, RecordOverflow>(std::numeric_limits<type>::max()) * (type)0).safeGet(_value)); \ + _value = 0; \ + value = 1; \ + EXPECT_EQ(true, CheckedState::DidNotOverflow == (value * Checked<type, RecordOverflow>(std::numeric_limits<type>::max())).safeGet(_value)); \ + _value = 0; \ + EXPECT_EQ(true, CheckedState::DidNotOverflow == (Checked<type, RecordOverflow>(std::numeric_limits<type>::max()) * (type)1).safeGet(_value)); \ + _value = 0; \ + value = 2; \ + EXPECT_EQ(true, CheckedState::DidOverflow == (value * Checked<type, RecordOverflow>(std::numeric_limits<type>::max())).safeGet(_value)); \ + _value = 0; \ + EXPECT_EQ(true, CheckedState::DidOverflow == (Checked<type, RecordOverflow>(std::numeric_limits<type>::max()) * (type)2).safeGet(_value)); \ + value = 10; \ + EXPECT_EQ(true, (value * Checked<type, RecordOverflow>(std::numeric_limits<type>::max())).hasOverflowed()); \ + MixedSignednessTest(EXPECT_EQ(coerceLiteral(0), (value + -10).unsafeGet())); \ + MixedSignednessTest(EXPECT_EQ(0U, (value - 10U).unsafeGet())); \ + MixedSignednessTest(EXPECT_EQ(coerceLiteral(0), (-10 + value).unsafeGet())); \ + MixedSignednessTest(EXPECT_EQ(0U, (10U - value).unsafeGet())); \ + value = std::numeric_limits<type>::min(); \ + MixedSignednessTest(EXPECT_EQ(true, (Checked<type, RecordOverflow>(value - 1)).hasOverflowed())); \ + MixedSignednessTest(EXPECT_EQ(true, !(value--).hasOverflowed())); \ + MixedSignednessTest(EXPECT_EQ(true, value.hasOverflowed())); \ + value = std::numeric_limits<type>::max(); \ + MixedSignednessTest(EXPECT_EQ(true, !value.hasOverflowed())); \ + MixedSignednessTest(EXPECT_EQ(true, (Checked<type, RecordOverflow>(value + 1)).hasOverflowed())); \ + MixedSignednessTest(EXPECT_EQ(true, !(value++).hasOverflowed())); \ + MixedSignednessTest(EXPECT_EQ(true, value.hasOverflowed())); \ + value = std::numeric_limits<type>::max(); \ + MixedSignednessTest(EXPECT_EQ(true, (value += 1).hasOverflowed())); \ + MixedSignednessTest(EXPECT_EQ(true, value.hasOverflowed())); \ + value = std::numeric_limits<type>::min(); \ + MixedSignednessTest(EXPECT_EQ(true, (value - 1U).hasOverflowed())); \ + MixedSignednessTest(EXPECT_EQ(true, !(value--).hasOverflowed())); \ + MixedSignednessTest(EXPECT_EQ(true, value.hasOverflowed())); \ + value = std::numeric_limits<type>::max(); \ + MixedSignednessTest(EXPECT_EQ(true, !value.hasOverflowed())); \ + MixedSignednessTest(EXPECT_EQ(true, (Checked<type, RecordOverflow>(value + 1U)).hasOverflowed())); \ + MixedSignednessTest(EXPECT_EQ(true, !(value++).hasOverflowed())); \ + MixedSignednessTest(EXPECT_EQ(true, value.hasOverflowed())); \ + value = std::numeric_limits<type>::max(); \ + MixedSignednessTest(EXPECT_EQ(true, (value += 1U).hasOverflowed())); \ + MixedSignednessTest(EXPECT_EQ(true, value.hasOverflowed())); \ + } + +#define CoerceLiteralToUnsigned(x) x##U +#define CoerceLiteralNop(x) x +#define AllowMixedSignednessTest(x) x +#define IgnoreMixedSignednessTest(x) +CheckedArithmeticTest(int8_t, CoerceLiteralNop, IgnoreMixedSignednessTest) +CheckedArithmeticTest(int16_t, CoerceLiteralNop, IgnoreMixedSignednessTest) +CheckedArithmeticTest(int32_t, CoerceLiteralNop, AllowMixedSignednessTest) +CheckedArithmeticTest(uint32_t, CoerceLiteralToUnsigned, AllowMixedSignednessTest) +CheckedArithmeticTest(int64_t, CoerceLiteralNop, IgnoreMixedSignednessTest) +CheckedArithmeticTest(uint64_t, CoerceLiteralToUnsigned, IgnoreMixedSignednessTest) + +} // namespace |