mirror of https://github.com/gohugoio/hugo.git
91 lines
1.9 KiB
Go
91 lines
1.9 KiB
Go
// Copyright 2019 The Hugo Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package para
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import (
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"context"
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"runtime"
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"sort"
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"sync"
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"sync/atomic"
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"testing"
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"time"
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qt "github.com/frankban/quicktest"
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)
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func TestPara(t *testing.T) {
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if runtime.NumCPU() < 4 {
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t.Skipf("skip para test, CPU count is %d", runtime.NumCPU())
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}
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c := qt.New(t)
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c.Run("Order", func(c *qt.C) {
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n := 500
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ints := make([]int, n)
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for i := 0; i < n; i++ {
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ints[i] = i
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}
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p := New(4)
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r, _ := p.Start(context.Background())
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var result []int
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var mu sync.Mutex
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for i := 0; i < n; i++ {
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i := i
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r.Run(func() error {
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mu.Lock()
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defer mu.Unlock()
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result = append(result, i)
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return nil
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})
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}
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c.Assert(r.Wait(), qt.IsNil)
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c.Assert(result, qt.HasLen, len(ints))
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c.Assert(sort.IntsAreSorted(result), qt.Equals, false, qt.Commentf("Para does not seem to be parallel"))
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sort.Ints(result)
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c.Assert(result, qt.DeepEquals, ints)
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})
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c.Run("Time", func(c *qt.C) {
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const n = 100
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p := New(5)
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r, _ := p.Start(context.Background())
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start := time.Now()
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var counter int64
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for i := 0; i < n; i++ {
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r.Run(func() error {
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atomic.AddInt64(&counter, 1)
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time.Sleep(1 * time.Millisecond)
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return nil
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})
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}
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c.Assert(r.Wait(), qt.IsNil)
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c.Assert(counter, qt.Equals, int64(n))
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c.Assert(time.Since(start) < n/2*time.Millisecond, qt.Equals, true)
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})
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}
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