add description to test

site/content/en/docs/contrib/tests.en.md

@@ -75,26 +75,8 @@ are functionality tests which can safely share a profile in parallel
 #### validateNodeLabels
 checks if minikube cluster is created with correct kubernetes's node label
 
-#### validateLoadImage
-makes sure that `minikube image load` works as expected
-
-#### validateLoadImageFromFile
-makes sure that `minikube image load` works from a local file
-
-#### validateRemoveImage
-makes sures that `minikube image rm` works as expected
-
-#### validateSaveImage
-makes sure that `minikube image save` works as expected
-
-#### validateSaveImageToFile
-makes sure that `minikube image save` works to a local file
-
-#### validateBuildImage
-makes sures that `minikube image build` works as expected
-
-#### validateListImages
-makes sures that `minikube image ls` works as expected
+#### validateImageCommands
+runs tests on all the `minikube image` commands, ex. `minikube image load`, `minikube image list`, etc.
 
 #### validateDockerEnv
 check functionality of minikube after evaluating docker-env

test/integration/functional_test.go

@@ -221,6 +221,7 @@ func validateNodeLabels(ctx context.Context, t *testing.T, profile string) {
 	}
 }
 
+// validateImageCommands runs tests on all the `minikube image` commands, ex. `minikube image load`, `minikube image list`, etc.
 func validateImageCommands(ctx context.Context, t *testing.T, profile string) {
 	if NoneDriver() {
 		t.Skip("image commands are not available on the none driver")