tailscale/util/execqueue/execqueue_test.go

// Copyright (c) Tailscale Inc & AUTHORS
// 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)
	}
}
control/controlclient,util/execqueue: extract execqueue into a package This is a useful primitive for asynchronous execution of ordered work I want to use in another change. Updates tailscale/corp#16833 Signed-off-by: James Tucker <james@tailscale.com> 10 months ago			`// Copyright (c) Tailscale Inc & AUTHORS`
			`// 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)`
			`}`
			`}`