fix(semval): don't fail on well-formed remote full document refs

Author: shockey

src/plugins/validate-semantic/validators/2and3/refs.js

@@ -64,7 +64,7 @@ export const validate2And3RefPathFormatting = () => (system) => {
         // eslint-disable-next-line no-unused-vars
         const [refUrl, refPath] = value.split("#")
 
-        if(!refPath || refPath[0] !== "/") {
+        if(refPath && refPath[0] !== "/") {
           errors.push({
             // $ref instead of $$ref
             path: [...node.path.slice(0, -1), "$ref"],

test/plugins/validate-semantic/2and3/refs.js

@@ -296,11 +296,14 @@ describe("validation plugin - semantic - 2and3 refs", function() {
         paths: {
           "/CoolPath": {
             $ref: "http://google.com#/myObj/abc"
-          }
+          },
         },
         myObj: {
           abc: {
-            type: "string"
+            type: "string",
+            properties: {
+              $ref: "http://google.com/MyRegularURLReference"
+            }
           }
         }
       }
@@ -318,11 +321,14 @@ describe("validation plugin - semantic - 2and3 refs", function() {
         paths: {
           "/CoolPath": {
             $ref: "http://google.com#/myObj/abc"
-          }
+          },
         },
         myObj: {
           abc: {
-            type: "string"
+            type: "string",
+            properties: {
+              $ref: "http://google.com/MyRegularURLReference"
+            }
           }
         }
       }