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moby--moby/container/state_test.go

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package container
import (
"sync/atomic"
"testing"
"time"
)
func TestStateRunStop(t *testing.T) {
s := NewState()
for i := 1; i < 3; i++ { // full lifecycle two times
s.Lock()
s.SetRunning(i+100, false)
s.Unlock()
if !s.IsRunning() {
t.Fatal("State not running")
}
if s.Pid != i+100 {
t.Fatalf("Pid %v, expected %v", s.Pid, i+100)
}
if s.ExitCode != 0 {
t.Fatalf("ExitCode %v, expected 0", s.ExitCode)
}
stopped := make(chan struct{})
var exit int64
go func() {
exitCode, _ := s.WaitStop(-1 * time.Second)
atomic.StoreInt64(&exit, int64(exitCode))
close(stopped)
}()
s.SetStoppedLocking(&ExitStatus{ExitCode: i})
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)
}
select {
case <-time.After(100 * time.Millisecond):
t.Fatal("Stop callback doesn't fire in 100 milliseconds")
case <-stopped:
t.Log("Stop callback fired")
}
exitCode := int(atomic.LoadInt64(&exit))
if exitCode != i {
t.Fatalf("ExitCode %v, expected %v", exitCode, i)
}
if exitCode, err := s.WaitStop(-1 * time.Second); err != nil || exitCode != i {
t.Fatalf("WaitStop returned exitCode: %v, err: %v, expected exitCode: %v, err: %v", exitCode, err, i, nil)
}
}
}
func TestStateTimeoutWait(t *testing.T) {
s := NewState()
stopped := make(chan struct{})
go func() {
s.WaitStop(100 * time.Millisecond)
close(stopped)
}()
select {
case <-time.After(200 * time.Millisecond):
t.Fatal("Stop callback doesn't fire in 100 milliseconds")
case <-stopped:
t.Log("Stop callback fired")
}
s.SetStoppedLocking(&ExitStatus{ExitCode: 1})
stopped = make(chan struct{})
go func() {
s.WaitStop(100 * time.Millisecond)
close(stopped)
}()
select {
case <-time.After(200 * time.Millisecond):
t.Fatal("Stop callback doesn't fire in 100 milliseconds")
case <-stopped:
t.Log("Stop callback fired")
}
}