Add integration test

test/integration/start_stop_delete_test.go

@@ -166,6 +166,46 @@ func TestStartStop(t *testing.T) {
 	})
 }
 
+func TestStartStopWithPreload(t *testing.T) {
+	if NoneDriver() {
+		t.Skipf("skipping %s - incompatible with none driver", t.Name())
+	}
+
+	profile := UniqueProfileName("test-preload")
+	ctx, cancel := context.WithTimeout(context.Background(), Minutes(40))
+	defer CleanupWithLogs(t, profile, cancel)
+
+	startArgs := []string{"start", "-p", profile, "--memory=2200", "--alsologtostderr", "-v=3", "--wait=true"}
+	startArgs = append(startArgs, StartArgs()...)
+	k8sVersion := "v1.17.3"
+	startArgs = append(startArgs, fmt.Sprintf("--kubernetes-version=%s", k8sVersion))
+
+	rr, err := Run(t, exec.CommandContext(ctx, Target(), startArgs...))
+	if err != nil {
+		t.Fatalf("%s failed: %v", rr.Args, err)
+	}
+
+	// Now, pull the busybox image into the VMs docker daemon
+	image := "busybox"
+	rr, err = Run(t, exec.CommandContext(ctx, Target(), "ssh", "-p", profile, "--", "docker", "pull", image))
+	if err != nil {
+		t.Fatalf("%s failed: %v", rr.Args, err)
+	}
+	// Restart minikube
+	rr, err = Run(t, exec.CommandContext(ctx, Target(), startArgs...))
+	if err != nil {
+		t.Fatalf("%s failed: %v", rr.Args, err)
+	}
+	// Ensure that busybox still exists in the daemon
+	rr, err = Run(t, exec.CommandContext(ctx, Target(), "ssh", "-p", profile, "--", "docker", "images"))
+	if err != nil {
+		t.Fatalf("%s failed: %v", rr.Args, err)
+	}
+	if !strings.Contains(rr.Output(), image) {
+		t.Fatalf("Expected to find %s in output of `docker images`, instead got %s", image, rr.Output())
+	}
+}
+
 // testPodScheduling asserts that this configuration can schedule new pods
 func testPodScheduling(ctx context.Context, t *testing.T, profile string) {
 	t.Helper()