40 lines
671 B
Go
40 lines
671 B
Go
package testtool
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import (
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"bytes"
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"os"
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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 VerifyNoBusyGoroutines(t *testing.T) {
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time.Sleep(time.Millisecond * 100)
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for i := 0; i < 100; i++ {
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time.Sleep(time.Millisecond)
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var stacks []byte
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for n := 1 << 20; true; n *= 2 {
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stacks = make([]byte, n)
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m := runtime.Stack(stacks, true)
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if m < n {
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stacks = stacks[:m]
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break
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}
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}
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busy := bytes.Count(stacks, []byte("[running]"))
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busy += bytes.Count(stacks, []byte("[runnable]"))
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busy += bytes.Count(stacks, []byte("[sleep]"))
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if !assert.Less(t, busy, 2) {
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_, _ = os.Stderr.Write(stacks)
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break
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}
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}
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}
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