mirror of https://github.com/tikv/client-go.git
50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
// Copyright 2021 PingCAP, Inc.
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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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//
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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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// See the License for the specific language governing permissions and
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// limitations under the License.
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package util
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import (
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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 TestRateLimit(t *testing.T) {
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assert := assert.New(t)
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done := make(chan struct{}, 1)
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rl := NewRateLimit(1)
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assert.PanicsWithValue("put a redundant token", rl.PutToken)
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exit := rl.GetToken(done)
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assert.False(exit)
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rl.PutToken()
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assert.PanicsWithValue("put a redundant token", rl.PutToken)
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exit = rl.GetToken(done)
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assert.False(exit)
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done <- struct{}{}
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exit = rl.GetToken(done) // blocked but exit
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assert.True(exit)
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sig := make(chan int, 1)
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go func() {
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exit = rl.GetToken(done) // blocked
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assert.False(exit)
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close(sig)
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}()
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time.Sleep(200 * time.Millisecond)
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rl.PutToken()
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<-sig
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}
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