141 lines
2.7 KiB
Go
141 lines
2.7 KiB
Go
// Copyright (c) 2016 Uber Technologies, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package atomic
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import (
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"runtime"
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"sync"
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"testing"
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)
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const (
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_parallelism = 4
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_iterations = 1000
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)
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func runStress(f func()) {
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defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(_parallelism))
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var wg sync.WaitGroup
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wg.Add(_parallelism)
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for i := 0; i < _parallelism; i++ {
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go func() {
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defer wg.Done()
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for j := 0; j < _iterations; j++ {
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f()
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}
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}()
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}
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wg.Wait()
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}
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func TestStressInt32(t *testing.T) {
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var atom Int32
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runStress(func() {
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atom.Load()
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atom.Add(1)
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atom.Sub(2)
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atom.Inc()
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atom.Dec()
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atom.CAS(1, 0)
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atom.Swap(5)
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atom.Store(1)
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})
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}
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func TestStressInt64(t *testing.T) {
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var atom Int64
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runStress(func() {
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atom.Load()
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atom.Add(1)
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atom.Sub(2)
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atom.Inc()
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atom.Dec()
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atom.CAS(1, 0)
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atom.Swap(5)
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atom.Store(1)
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})
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}
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func TestStressUint32(t *testing.T) {
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var atom Uint32
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runStress(func() {
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atom.Load()
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atom.Add(1)
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atom.Sub(2)
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atom.Inc()
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atom.Dec()
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atom.CAS(1, 0)
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atom.Swap(5)
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atom.Store(1)
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})
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}
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func TestStressUint64(t *testing.T) {
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var atom Uint64
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runStress(func() {
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atom.Load()
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atom.Add(1)
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atom.Sub(2)
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atom.Inc()
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atom.Dec()
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atom.CAS(1, 0)
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atom.Swap(5)
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atom.Store(1)
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})
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}
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func TestStressFloat64(t *testing.T) {
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var atom Float64
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runStress(func() {
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atom.Load()
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atom.CAS(1.0, 0.1)
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atom.Add(1.1)
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atom.Sub(0.2)
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atom.Store(1.0)
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})
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}
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func TestStressBool(t *testing.T) {
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var atom Bool
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runStress(func() {
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atom.Load()
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atom.Store(false)
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atom.Swap(true)
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atom.Load()
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atom.Toggle()
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atom.Toggle()
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})
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}
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func TestStressString(t *testing.T) {
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var atom String
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runStress(func() {
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atom.Load()
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atom.Store("abc")
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atom.Load()
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atom.Store("def")
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})
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}
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