Avoid containerd access as much as possible.

Signed-off-by: Lantao Liu <lantaol@google.com>

pkg/server/sandbox_status_test.go

@@ -20,7 +20,6 @@ import (
 	"testing"
 	"time"
 
-	"github.com/containerd/containerd"
 	"github.com/stretchr/testify/assert"
 	"k8s.io/kubernetes/pkg/kubelet/apis/cri/v1alpha1/runtime"
 
@@ -52,12 +51,10 @@ func TestPodSandboxStatus(t *testing.T) {
 		Labels:      map[string]string{"a": "b"},
 		Annotations: map[string]string{"c": "d"},
 	}
-	sandbox := &sandboxstore.Sandbox{
-		Metadata: sandboxstore.Metadata{
-			ID:     id,
-			Name:   "test-name",
-			Config: config,
-		},
+	metadata := sandboxstore.Metadata{
+		ID:     id,
+		Name:   "test-name",
+		Config: config,
 	}
 
 	expected := &runtime.PodSandboxStatus{
@@ -77,21 +74,26 @@ func TestPodSandboxStatus(t *testing.T) {
 		Labels:      config.GetLabels(),
 		Annotations: config.GetAnnotations(),
 	}
-	for _, status := range []containerd.ProcessStatus{
-		"",
-		containerd.Running,
-		containerd.Created,
-		containerd.Stopped,
-		containerd.Paused,
-		containerd.Pausing,
-		containerd.Unknown,
+	for desc, test := range map[string]struct {
+		state         sandboxstore.State
+		expectedState runtime.PodSandboxState
+	}{
+		"sandbox state ready": {
+			state:         sandboxstore.StateReady,
+			expectedState: runtime.PodSandboxState_SANDBOX_READY,
+		},
+		"sandbox state not ready": {
+			state:         sandboxstore.StateNotReady,
+			expectedState: runtime.PodSandboxState_SANDBOX_NOTREADY,
+		},
 	} {
-		state := runtime.PodSandboxState_SANDBOX_NOTREADY
-		if status == containerd.Running {
-			state = runtime.PodSandboxState_SANDBOX_READY
+		t.Logf("TestCase: %s", desc)
+		status := sandboxstore.Status{
+			CreatedAt: createdAt,
+			State:     test.state,
 		}
-		expected.State = state
-		got := toCRISandboxStatus(sandbox.Metadata, status, createdAt, ip)
+		expected.State = test.expectedState
+		got := toCRISandboxStatus(metadata, status, ip)
 		assert.Equal(t, expected, got)
 	}
 }