add first exiting test

server/handler/handler_admin_utils.go

@@ -1,42 +1,10 @@
 package handler
 
-import "fmt"
-
-func validateUsername(username string) error {
-	if username == "" {
-		return fmt.Errorf("please enter the username")
-	}
-	return nil
-}
-
-func validatePasswords(pOne, pTwo string) error {
-	if pOne == "" || pTwo == "" {
-		return fmt.Errorf("please enter the password twice")
-	}
-	if !(pOne == pTwo) {
-		return fmt.Errorf("the two passwords entered were not the same")
-	}
-	return nil
-}
-
-func validateAPIKey(apiKey, secret string) error {
-	if apiKey == "" || secret == "" {
-		return fmt.Errorf("please enter both the api key and secret")
-	}
-	return nil
-}
-
 func firstExisting(or string, strings ...string) string {
-	current := ""
 	for _, s := range strings {
-		if s == "" {
-			continue
+		if s != "" {
+			return s
 		}
-		current = s
-		break
 	}
-	if current == "" {
-		return or
-	}
-	return current
+	return or
 }