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// Copyright (c) Tailscale Inc & contributors
// SPDX-License-Identifier: BSD-3-Clause
package execqueue
import (
"context"
"sync/atomic"
"testing"
)
func TestExecQueue(t *testing.T) {
ctx := context.Background()
var n atomic.Int32
q := &ExecQueue{}
defer q.Shutdown()
q.Add(func() { n.Add(1) })
q.Wait(ctx)
if got := n.Load(); got != 1 {
t.Errorf("n=%d; want 1", got)
}
}
// Test that RunSync doesn't hold q.mu and block Shutdown
// as we saw in tailscale/tailscale#18502
func TestExecQueueRunSyncLocking(t *testing.T) {
q := &ExecQueue{}
q.RunSync(t.Context(), func() {
q.Shutdown()
})
}
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