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59 lines
1.7 KiB
Go
59 lines
1.7 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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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 concurrency
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import (
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"runtime"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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)
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func TestPool(t *testing.T) {
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pool, err := NewPool(runtime.NumCPU())
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assert.NoError(t, err)
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taskNum := pool.Cap() * 2
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futures := make([]*Future, 0, taskNum)
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for i := 0; i < taskNum; i++ {
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res := i
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future := pool.Submit(func() (interface{}, error) {
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time.Sleep(500 * time.Millisecond)
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return res, nil
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})
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futures = append(futures, future)
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}
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assert.Greater(t, pool.Running(), 0)
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AwaitAll(futures...)
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for i, future := range futures {
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res, err := future.Await()
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assert.NoError(t, err)
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assert.Equal(t, err, future.Err())
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assert.True(t, future.OK())
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assert.Equal(t, res, future.Value())
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assert.Equal(t, i, res.(int))
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// Await() should be idempotent
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<-future.Inner()
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resDup, errDup := future.Await()
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assert.Equal(t, res, resDup)
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assert.Equal(t, err, errDup)
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}
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}
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