File: state_test.go

package info (click to toggle)
docker.io 18.09.5+dfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 65,324 kB
  • sloc: sh: 9,757; makefile: 833; ansic: 239; python: 162; asm: 10
file content (193 lines) | stat: -rw-r--r-- 5,246 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
package container // import "github.com/docker/docker/container"

import (
	"context"
	"testing"
	"time"

	"github.com/docker/docker/api/types"
)

func TestIsValidHealthString(t *testing.T) {
	contexts := []struct {
		Health   string
		Expected bool
	}{
		{types.Healthy, true},
		{types.Unhealthy, true},
		{types.Starting, true},
		{types.NoHealthcheck, true},
		{"fail", false},
	}

	for _, c := range contexts {
		v := IsValidHealthString(c.Health)
		if v != c.Expected {
			t.Fatalf("Expected %t, but got %t", c.Expected, v)
		}
	}
}

func TestStateRunStop(t *testing.T) {
t.Skip("DM - disabled unreliable test")
	s := NewState()

	// Begin another wait with WaitConditionRemoved. It should complete
	// within 200 milliseconds.
	ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond)
	defer cancel()
	removalWait := s.Wait(ctx, WaitConditionRemoved)

	// Full lifecycle two times.
	for i := 1; i <= 2; i++ {
		// A wait with WaitConditionNotRunning should return
		// immediately since the state is now either "created" (on the
		// first iteration) or "exited" (on the second iteration). It
		// shouldn't take more than 50 milliseconds.
		ctx, cancel := context.WithTimeout(context.Background(), 50*time.Millisecond)
		defer cancel()
		// Expectx exit code to be i-1 since it should be the exit
		// code from the previous loop or 0 for the created state.
		if status := <-s.Wait(ctx, WaitConditionNotRunning); status.ExitCode() != i-1 {
			t.Fatalf("ExitCode %v, expected %v, err %q", status.ExitCode(), i-1, status.Err())
		}

		// A wait with WaitConditionNextExit should block until the
		// container has started and exited. It shouldn't take more
		// than 100 milliseconds.
		ctx, cancel = context.WithTimeout(context.Background(), 100*time.Millisecond)
		defer cancel()
		initialWait := s.Wait(ctx, WaitConditionNextExit)

		// Set the state to "Running".
		s.Lock()
		s.SetRunning(i, true)
		s.Unlock()

		// Assert desired state.
		if !s.IsRunning() {
			t.Fatal("State not running")
		}
		if s.Pid != i {
			t.Fatalf("Pid %v, expected %v", s.Pid, i)
		}
		if s.ExitCode() != 0 {
			t.Fatalf("ExitCode %v, expected 0", s.ExitCode())
		}

		// Now that it's running, a wait with WaitConditionNotRunning
		// should block until we stop the container. It shouldn't take
		// more than 100 milliseconds.
		ctx, cancel = context.WithTimeout(context.Background(), 100*time.Millisecond)
		defer cancel()
		exitWait := s.Wait(ctx, WaitConditionNotRunning)

		// Set the state to "Exited".
		s.Lock()
		s.SetStopped(&ExitStatus{ExitCode: i})
		s.Unlock()

		// Assert desired state.
		if s.IsRunning() {
			t.Fatal("State is running")
		}
		if s.ExitCode() != i {
			t.Fatalf("ExitCode %v, expected %v", s.ExitCode(), i)
		}
		if s.Pid != 0 {
			t.Fatalf("Pid %v, expected 0", s.Pid)
		}

		// Receive the initialWait result.
		if status := <-initialWait; status.ExitCode() != i {
			t.Fatalf("ExitCode %v, expected %v, err %q", status.ExitCode(), i, status.Err())
		}

		// Receive the exitWait result.
		if status := <-exitWait; status.ExitCode() != i {
			t.Fatalf("ExitCode %v, expected %v, err %q", status.ExitCode(), i, status.Err())
		}
	}

	// Set the state to dead and removed.
	s.SetDead()
	s.SetRemoved()

	// Wait for removed status or timeout.
	if status := <-removalWait; status.ExitCode() != 2 {
		// Should have the final exit code from the loop.
		t.Fatalf("Removal wait exitCode %v, expected %v, err %q", status.ExitCode(), 2, status.Err())
	}
}

func TestStateTimeoutWait(t *testing.T) {
	s := NewState()

	s.Lock()
	s.SetRunning(0, true)
	s.Unlock()

	// Start a wait with a timeout.
	ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond)
	defer cancel()
	waitC := s.Wait(ctx, WaitConditionNotRunning)

	// It should timeout *before* this 200ms timer does.
	select {
	case <-time.After(200 * time.Millisecond):
		t.Fatal("Stop callback doesn't fire in 200 milliseconds")
	case status := <-waitC:
		t.Log("Stop callback fired")
		// Should be a timeout error.
		if status.Err() == nil {
			t.Fatal("expected timeout error, got nil")
		}
		if status.ExitCode() != -1 {
			t.Fatalf("expected exit code %v, got %v", -1, status.ExitCode())
		}
	}

	s.Lock()
	s.SetStopped(&ExitStatus{ExitCode: 0})
	s.Unlock()

	// Start another wait with a timeout. This one should return
	// immediately.
	ctx, cancel = context.WithTimeout(context.Background(), 100*time.Millisecond)
	defer cancel()
	waitC = s.Wait(ctx, WaitConditionNotRunning)

	select {
	case <-time.After(200 * time.Millisecond):
		t.Fatal("Stop callback doesn't fire in 200 milliseconds")
	case status := <-waitC:
		t.Log("Stop callback fired")
		if status.ExitCode() != 0 {
			t.Fatalf("expected exit code %v, got %v, err %q", 0, status.ExitCode(), status.Err())
		}
	}
}

func TestIsValidStateString(t *testing.T) {
	states := []struct {
		state    string
		expected bool
	}{
		{"paused", true},
		{"restarting", true},
		{"running", true},
		{"dead", true},
		{"start", false},
		{"created", true},
		{"exited", true},
		{"removing", true},
		{"stop", false},
	}

	for _, s := range states {
		v := IsValidStateString(s.state)
		if v != s.expected {
			t.Fatalf("Expected %t, but got %t", s.expected, v)
		}
	}
}