Test restart with preloaded tarball and without

test/integration/start_stop_delete_test.go

@@ -175,7 +175,7 @@ func TestStartStopWithPreload(t *testing.T) {
 	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 := []string{"start", "-p", profile, "--memory=2200", "--alsologtostderr", "-v=3", "--wait=true", "--preload=false"}
 	startArgs = append(startArgs, StartArgs()...)
 	k8sVersion := "v1.17.0"
 	startArgs = append(startArgs, fmt.Sprintf("--kubernetes-version=%s", k8sVersion))
@@ -191,6 +191,18 @@ func TestStartStopWithPreload(t *testing.T) {
 	if err != nil {
 		t.Fatalf("%s failed: %v", rr.Args, err)
 	}
+
+	// Restart again with v1.17.0, this time with the preloaded tarball
+	startArgs = []string{"start", "-p", profile, "--memory=2200", "--alsologtostderr", "-v=3", "--wait=true"}
+	startArgs = append(startArgs, StartArgs()...)
+	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)
+	}
+	verifyImageExistsInDaemon(ctx, t, profile, image)
+
 	// Restart minikube with v1.17.3, which has a preloaded tarball
 	startArgs = []string{"start", "-p", profile, "--memory=2200", "--alsologtostderr", "-v=3", "--wait=true"}
 	startArgs = append(startArgs, StartArgs()...)
@@ -200,9 +212,13 @@ func TestStartStopWithPreload(t *testing.T) {
 	if err != nil {
 		t.Fatalf("%s failed: %v", rr.Args, err)
 	}
+	verifyImageExistsInDaemon(ctx, t, profile, image)
+
+}
 
+func verifyImageExistsInDaemon(ctx context.Context, t *testing.T, profile, image string) {
 	// Ensure that busybox still exists in the daemon
-	rr, err = Run(t, exec.CommandContext(ctx, Target(), "ssh", "-p", profile, "--", "docker", "images"))
+	rr, err := Run(t, exec.CommandContext(ctx, Target(), "ssh", "-p", profile, "--", "docker", "images"))
 	if err != nil {
 		t.Fatalf("%s failed: %v", rr.Args, err)
 	}