fix: solve refs without path

resolve.js

@@ -40,6 +40,11 @@ function resolveUri(uri, anchors) {
   if (!anchors[prefix]) {
     throw err;
   }
+
+  if (path === undefined){
+    return anchors[prefix];
+  }
+
   const paths = path.split("/").slice(1);
   try {
     const result = paths.reduce(
@@ -53,6 +58,8 @@ function resolveUri(uri, anchors) {
   } catch (_) {
     throw err;
   }
+
+
 }
 
 function resolve(tree) {

test/test-validation.js

@@ -13,7 +13,9 @@ const invalidSpec = require(`./validation/invalid-spec.json`);
 const yamlFileName = localFile(`./validation/petstore-openapi.v3.yaml`);
 const mainSpecYamlFileName = localFile(`./validation/main-spec.v3.yaml`);
 const subSpecYamlFileName = localFile(`./validation/sub-spec.v3.yaml`);
+const subSpec2YamlFileName = localFile(`./validation/sub-spec2.v3.yaml`);
 const subSpecUri = "http://www.example.com/subspec";
+const subSpecUri2 = "subspec2";
 const inlinedRefs = "x-inlined-refs";
 
 async function testVersion(version) {
@@ -198,20 +200,30 @@ test(`addSpecRef: Invalid filename returns an error`, (t) => {
 });
 
 test(`addSpecRef works`, async (t) => {
-  t.plan(3);
+  t.plan(5);
   const validator = new Validator();
   await validator.addSpecRef(subSpecUri, subSpecYamlFileName);
+  await validator.addSpecRef(subSpecUri2, subSpec2YamlFileName);
   const res = await validator.validate(mainSpecYamlFileName);
   t.equal(res.valid, true, "main spec + subspec is valid");
   t.equal(
     validator.specification[inlinedRefs][subSpecUri].components.requestBodies
       .Pet.required,
     true,
   );
+  t.equal(
+    validator.specification[inlinedRefs][subSpecUri2].get.summary,
+    "Finds Pets by status",
+  );
   const resolvedSpec = validator.resolveRefs();
   t.equal(
     resolvedSpec.paths["/pet"].post.requestBody.required,
     true,
     "$refs from main spec to sub spec are correctly resolved",
   );
+  t.equal(
+    resolvedSpec.paths["/pet/findByStatus"].get.summary,
+    "Finds Pets by status",
+    "$refs from main spec to sub2 spec are correctly resolved",
+  );
 });

test/validation/main-spec.v3.yaml

@@ -22,4 +22,6 @@ paths:
         '405':
           description: Invalid input
       requestBody:
-        $ref: 'http://www.example.com/subspec#/components/requestBodies/Pet'
+        $ref: 'http://www.example.com/subspec#/components/requestBodies/Pet'
+  /pet/findByStatus:
+    $ref: 'subspec2'

test/validation/sub-spec2.v3.yaml

@@ -0,0 +1,39 @@
+
+get:
+  tags:
+    - pet
+  summary: Finds Pets by status
+  description: Multiple status values can be provided with comma separated strings
+  operationId: findPetsByStatus
+  parameters:
+    - name: status
+      in: query
+      description: Status values that need to be considered for filter
+      required: true
+      style: form
+      explode: false
+      schema:
+        type: array
+        items:
+          type: string
+          enum:
+            - available
+            - pending
+            - sold
+          default: available
+  responses:
+    '200':
+      description: successful operation
+      content:
+        application/xml:
+          schema:
+            type: array
+            items:
+              $ref: 'http://www.example.com/subspec#/components/schemas/Pet'
+        application/json:
+          schema:
+            type: array
+            items:
+              $ref: 'http://www.example.com/subspec#/components/schemas/Pet'
+    '400':
+      description: Invalid status value