35 lines
894 B
C++
35 lines
894 B
C++
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// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/base/bits.h"
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#include "src/base/macros.h"
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#include "testing/gtest-support.h"
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namespace v8 {
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namespace base {
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namespace bits {
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TEST(BitsTest, RotateRight32) {
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TRACED_FORRANGE(uint32_t, shift, 0, 31) {
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EXPECT_EQ(0u, RotateRight32(0u, shift));
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}
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EXPECT_EQ(1u, RotateRight32(1, 0));
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EXPECT_EQ(1u, RotateRight32(2, 1));
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EXPECT_EQ(0x80000000u, RotateRight32(1, 1));
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}
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TEST(BitsTest, RotateRight64) {
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TRACED_FORRANGE(uint64_t, shift, 0, 63) {
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EXPECT_EQ(0u, RotateRight64(0u, shift));
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}
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EXPECT_EQ(1u, RotateRight64(1, 0));
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EXPECT_EQ(1u, RotateRight64(2, 1));
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EXPECT_EQ(V8_UINT64_C(0x8000000000000000), RotateRight64(1, 1));
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}
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} // namespace bits
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} // namespace base
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} // namespace v8
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