Correctly validate OAS3 parameters that lack a schema

src/core/utils.js

@@ -473,6 +473,9 @@ export const validateParam = (param, isXml, isOAS3 = false) => {
   let required = param.get("required")
 
   let paramDetails = isOAS3 ? param.get("schema") : param
+
+  if(!paramDetails) return errors
+
   let maximum = paramDetails.get("maximum")
   let minimum = paramDetails.get("minimum")
   let type = paramDetails.get("type")

test/core/utils.js

@@ -321,14 +321,11 @@ describe("utils", function() {
     }
 
     it("should check the isOAS3 flag when validating parameters", function() {
-      // This should "skip" validation because there is no `schema.type` property
+      // This should "skip" validation because there is no `schema` property
       // and we are telling `validateParam` this is an OAS3 spec
       param = fromJS({
         value: "",
-        required: true,
-        schema: {
-          notTheTypeProperty: "string"
-        }
+        required: true
       })
       result = validateParam( param, false, true )
       expect( result ).toEqual( [] )