add test to check if buildkitd process is running

Author: spowelljr

Diff for: test/integration/functional_test.go

@@ -255,10 +255,15 @@ func validateImageCommands(ctx context.Context, t *testing.T, profile string) {
 	t.Run("ImageBuild", func(t *testing.T) {
 		MaybeParallel(t)
 
+		rr, err := Run(t exec.CommandContext(ctx, Target(), "-p", profile, "ssh", "pgrep", "buildkitd"))
+		if err == nil {
+			t.Errorf("buildkitd process is running, should not be running until `minikube image build` is ran")
+		}
+
 		newImage := fmt.Sprintf("localhost/my-image:%s", profile)
 
 		// try to build the new image with minikube
-		rr, err := Run(t, exec.CommandContext(ctx, Target(), "-p", profile, "image", "build", "-t", newImage, filepath.Join(*testdataDir, "build")))
+		rr, err = Run(t, exec.CommandContext(ctx, Target(), "-p", profile, "image", "build", "-t", newImage, filepath.Join(*testdataDir, "build")))
 		if err != nil {
 			t.Fatalf("building image with minikube: %v\n%s", err, rr.Output())
 		}