mirror of
https://github.com/opentofu/opentofu.git
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37 lines
546 B
Go
37 lines
546 B
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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package tofu
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import (
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"testing"
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"time"
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)
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func TestSemaphore(t *testing.T) {
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s := NewSemaphore(2)
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timer := time.AfterFunc(time.Second, func() {
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panic("deadlock")
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})
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defer timer.Stop()
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s.Acquire()
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if !s.TryAcquire() {
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t.Fatalf("should acquire")
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}
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if s.TryAcquire() {
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t.Fatalf("should not acquire")
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}
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s.Release()
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s.Release()
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// This release should panic
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defer func() {
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r := recover()
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if r == nil {
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t.Fatalf("should panic")
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}
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}()
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s.Release()
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}
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