Siva Annamalai
69 lines
1.7 KiB
C++
69 lines
1.7 KiB
C++
// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "platform/assert.h"
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#include "platform/utils.h"
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#include "vm/atomic.h"
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#include "vm/globals.h"
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#include "vm/unit_test.h"
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namespace dart {
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UNIT_TEST_CASE(FetchAndIncrement) {
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uintptr_t v = 42;
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EXPECT_EQ(static_cast<uintptr_t>(42),
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AtomicOperations::FetchAndIncrement(&v));
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EXPECT_EQ(static_cast<uintptr_t>(43), v);
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}
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UNIT_TEST_CASE(FetchAndDecrement) {
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uintptr_t v = 42;
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EXPECT_EQ(static_cast<uintptr_t>(42),
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AtomicOperations::FetchAndDecrement(&v));
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EXPECT_EQ(static_cast<uintptr_t>(41), v);
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}
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UNIT_TEST_CASE(FetchAndIncrementBy) {
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intptr_t v = 42;
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EXPECT_EQ(static_cast<uintptr_t>(42),
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AtomicOperations::FetchAndIncrementBy(&v, 100));
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EXPECT_EQ(static_cast<intptr_t>(142), v);
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}
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UNIT_TEST_CASE(FetchAndDecrementBy) {
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intptr_t v = 42;
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EXPECT_EQ(static_cast<uintptr_t>(42),
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AtomicOperations::FetchAndDecrementBy(&v, 41));
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EXPECT_EQ(static_cast<intptr_t>(1), v);
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}
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UNIT_TEST_CASE(LoadRelaxed) {
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uword v = 42;
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EXPECT_EQ(static_cast<uword>(42), AtomicOperations::LoadRelaxed(&v));
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}
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TEST_CASE(CompareAndSwapWord) {
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uword old_value = 42;
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uword new_value = 100;
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uword result = AtomicOperations::CompareAndSwapWord(
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&old_value, old_value, new_value);
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EXPECT_EQ(static_cast<uword>(42), result);
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}
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TEST_CASE(CompareAndSwapUint32) {
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uint32_t old_value = 42;
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uint32_t new_value = 100;
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uint32_t result = AtomicOperations::CompareAndSwapUint32(
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&old_value, old_value, new_value);
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EXPECT_EQ(static_cast<uint32_t>(42), result);
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}
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} // namespace dart
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