github.com/sams1990/dockerrepo@v17.12.1-ce-rc2+incompatible/daemon/health_test.go (about)

     1  package daemon
     2  
     3  import (
     4  	"testing"
     5  	"time"
     6  
     7  	"github.com/docker/docker/api/types"
     8  	containertypes "github.com/docker/docker/api/types/container"
     9  	eventtypes "github.com/docker/docker/api/types/events"
    10  	"github.com/docker/docker/container"
    11  	"github.com/docker/docker/daemon/events"
    12  )
    13  
    14  func reset(c *container.Container) {
    15  	c.State = &container.State{}
    16  	c.State.Health = &container.Health{}
    17  	c.State.Health.SetStatus(types.Starting)
    18  }
    19  
    20  func TestNoneHealthcheck(t *testing.T) {
    21  	c := &container.Container{
    22  		ID:   "container_id",
    23  		Name: "container_name",
    24  		Config: &containertypes.Config{
    25  			Image: "image_name",
    26  			Healthcheck: &containertypes.HealthConfig{
    27  				Test: []string{"NONE"},
    28  			},
    29  		},
    30  		State: &container.State{},
    31  	}
    32  	store, err := container.NewViewDB()
    33  	if err != nil {
    34  		t.Fatal(err)
    35  	}
    36  	daemon := &Daemon{
    37  		containersReplica: store,
    38  	}
    39  
    40  	daemon.initHealthMonitor(c)
    41  	if c.State.Health != nil {
    42  		t.Error("Expecting Health to be nil, but was not")
    43  	}
    44  }
    45  
    46  // FIXME(vdemeester) This takes around 3s… This is *way* too long
    47  func TestHealthStates(t *testing.T) {
    48  	e := events.New()
    49  	_, l, _ := e.Subscribe()
    50  	defer e.Evict(l)
    51  
    52  	expect := func(expected string) {
    53  		select {
    54  		case event := <-l:
    55  			ev := event.(eventtypes.Message)
    56  			if ev.Status != expected {
    57  				t.Errorf("Expecting event %#v, but got %#v\n", expected, ev.Status)
    58  			}
    59  		case <-time.After(1 * time.Second):
    60  			t.Errorf("Expecting event %#v, but got nothing\n", expected)
    61  		}
    62  	}
    63  
    64  	c := &container.Container{
    65  		ID:   "container_id",
    66  		Name: "container_name",
    67  		Config: &containertypes.Config{
    68  			Image: "image_name",
    69  		},
    70  	}
    71  
    72  	store, err := container.NewViewDB()
    73  	if err != nil {
    74  		t.Fatal(err)
    75  	}
    76  
    77  	daemon := &Daemon{
    78  		EventsService:     e,
    79  		containersReplica: store,
    80  	}
    81  
    82  	c.Config.Healthcheck = &containertypes.HealthConfig{
    83  		Retries: 1,
    84  	}
    85  
    86  	reset(c)
    87  
    88  	handleResult := func(startTime time.Time, exitCode int) {
    89  		handleProbeResult(daemon, c, &types.HealthcheckResult{
    90  			Start:    startTime,
    91  			End:      startTime,
    92  			ExitCode: exitCode,
    93  		}, nil)
    94  	}
    95  
    96  	// starting -> failed -> success -> failed
    97  
    98  	handleResult(c.State.StartedAt.Add(1*time.Second), 1)
    99  	expect("health_status: unhealthy")
   100  
   101  	handleResult(c.State.StartedAt.Add(2*time.Second), 0)
   102  	expect("health_status: healthy")
   103  
   104  	handleResult(c.State.StartedAt.Add(3*time.Second), 1)
   105  	expect("health_status: unhealthy")
   106  
   107  	// Test retries
   108  
   109  	reset(c)
   110  	c.Config.Healthcheck.Retries = 3
   111  
   112  	handleResult(c.State.StartedAt.Add(20*time.Second), 1)
   113  	handleResult(c.State.StartedAt.Add(40*time.Second), 1)
   114  	if status := c.State.Health.Status(); status != types.Starting {
   115  		t.Errorf("Expecting starting, but got %#v\n", status)
   116  	}
   117  	if c.State.Health.FailingStreak != 2 {
   118  		t.Errorf("Expecting FailingStreak=2, but got %d\n", c.State.Health.FailingStreak)
   119  	}
   120  	handleResult(c.State.StartedAt.Add(60*time.Second), 1)
   121  	expect("health_status: unhealthy")
   122  
   123  	handleResult(c.State.StartedAt.Add(80*time.Second), 0)
   124  	expect("health_status: healthy")
   125  	if c.State.Health.FailingStreak != 0 {
   126  		t.Errorf("Expecting FailingStreak=0, but got %d\n", c.State.Health.FailingStreak)
   127  	}
   128  
   129  	// Test start period
   130  
   131  	reset(c)
   132  	c.Config.Healthcheck.Retries = 2
   133  	c.Config.Healthcheck.StartPeriod = 30 * time.Second
   134  
   135  	handleResult(c.State.StartedAt.Add(20*time.Second), 1)
   136  	if status := c.State.Health.Status(); status != types.Starting {
   137  		t.Errorf("Expecting starting, but got %#v\n", status)
   138  	}
   139  	if c.State.Health.FailingStreak != 0 {
   140  		t.Errorf("Expecting FailingStreak=0, but got %d\n", c.State.Health.FailingStreak)
   141  	}
   142  	handleResult(c.State.StartedAt.Add(50*time.Second), 1)
   143  	if status := c.State.Health.Status(); status != types.Starting {
   144  		t.Errorf("Expecting starting, but got %#v\n", status)
   145  	}
   146  	if c.State.Health.FailingStreak != 1 {
   147  		t.Errorf("Expecting FailingStreak=1, but got %d\n", c.State.Health.FailingStreak)
   148  	}
   149  	handleResult(c.State.StartedAt.Add(80*time.Second), 0)
   150  	expect("health_status: healthy")
   151  	if c.State.Health.FailingStreak != 0 {
   152  		t.Errorf("Expecting FailingStreak=0, but got %d\n", c.State.Health.FailingStreak)
   153  	}
   154  }