Minor health command update (#203)

* Minor health command update
* fix unit test

Author: Tim Middleton

pkg/cmd/utils.go

@@ -685,6 +685,10 @@ func parseHealthEndpoints(endpointCSV string) ([]string, error) {
 	for _, v := range endpoints {
 		_, err := url.ParseRequestURI(v)
 		if err != nil {
+			if v == "" {
+				// ignore invalid URLS
+				continue
+			}
 			return validEndpoints, fmt.Errorf("url [%s] is not valid", v)
 		}
 		validEndpoints = append(validEndpoints, v)

pkg/cmd/utils_test.go

@@ -67,7 +67,7 @@ func TestDecodeMemberDetails(t *testing.T) {
 func TestParseHealthEndpoints(t *testing.T) {
 	g := NewGomegaWithT(t)
 	_, err := parseHealthEndpoints("")
-	g.Expect(err).To(HaveOccurred())
+	g.Expect(err).To(Not(HaveOccurred())) // special empty case
 
 	_, err = parseHealthEndpoints("rubbish")
 	g.Expect(err).To(HaveOccurred())