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100 lines
2.1 KiB
Go
100 lines
2.1 KiB
Go
// +build !windows
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package container
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import (
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"testing"
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"time"
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containertypes "github.com/docker/docker/api/types/container"
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"github.com/docker/docker/container"
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"github.com/docker/docker/daemon"
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"github.com/docker/docker/daemon/events"
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"github.com/docker/swarmkit/api"
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"golang.org/x/net/context"
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)
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func TestHealthStates(t *testing.T) {
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// set up environment: events, task, container ....
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e := events.New()
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_, l, _ := e.Subscribe()
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defer e.Evict(l)
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task := &api.Task{
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ID: "id",
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ServiceID: "sid",
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Spec: api.TaskSpec{
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Runtime: &api.TaskSpec_Container{
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Container: &api.ContainerSpec{
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Image: "image_name",
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Labels: map[string]string{
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"com.docker.swarm.task.id": "id",
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},
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},
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},
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},
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Annotations: api.Annotations{Name: "name"},
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}
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c := &container.Container{
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ID: "id",
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Name: "name",
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Config: &containertypes.Config{
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Image: "image_name",
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Labels: map[string]string{
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"com.docker.swarm.task.id": "id",
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},
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},
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}
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daemon := &daemon.Daemon{
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EventsService: e,
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}
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controller, err := newController(daemon, task, nil, nil)
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if err != nil {
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t.Fatalf("create controller fail %v", err)
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}
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errChan := make(chan error, 1)
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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// fire checkHealth
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go func() {
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err := controller.checkHealth(ctx)
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select {
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case errChan <- err:
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case <-ctx.Done():
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}
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}()
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// send an event and expect to get expectedErr
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// if expectedErr is nil, shouldn't get any error
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logAndExpect := func(msg string, expectedErr error) {
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daemon.LogContainerEvent(c, msg)
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timer := time.NewTimer(1 * time.Second)
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defer timer.Stop()
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select {
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case err := <-errChan:
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if err != expectedErr {
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t.Fatalf("expect error %v, but get %v", expectedErr, err)
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}
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case <-timer.C:
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if expectedErr != nil {
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t.Fatal("time limit exceeded, didn't get expected error")
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}
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}
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}
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// events that are ignored by checkHealth
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logAndExpect("health_status: running", nil)
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logAndExpect("health_status: healthy", nil)
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logAndExpect("die", nil)
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// unhealthy event will be caught by checkHealth
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logAndExpect("health_status: unhealthy", ErrContainerUnhealthy)
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}
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