Used safer access to determne content type in encoding object

Author: VShingala

lib/schemaUtils.js

@@ -2020,7 +2020,7 @@ module.exports = {
             }
           });
 
-          if (encoding[key] && encoding[key].hasOwnProperty('contentType')) {
+          if (typeof _.get(encoding, `[${key}].contentType`) === 'string') {
             contentTypes[key] = encoding[key].contentType;
           }
         }

libV2/schemaUtils.js

@@ -1243,7 +1243,7 @@ let QUERYPARAM = 'query',
         _.indexOf(requestBodySchema.required, key) !== -1;
       description = getParameterDescription(paramSchema);
 
-      if (encoding.hasOwnProperty(key) && encoding[key] && encoding[key].hasOwnProperty('contentType')) {
+      if (typeof _.get(encoding, `[${key}].contentType`) === 'string') {
         contentType = encoding[key].contentType;
       }
 

test/data/valid_openapi/required_in_parameters.json

@@ -98,6 +98,14 @@
                     "type": "string"
                   }
                 }
+              },
+              "encoding": {
+                "formParam1": {
+                  "contentType": "application/xml"
+                },
+                "formParam2": {
+                  "contentType": "application/js"
+                }
               }
             }
           }

test/unit/convertV2.test.js

@@ -731,7 +731,7 @@ describe('The convert v2 Function', function() {
     });
   });
 
-  it('[Github #137]- Should add `requried` keyword in parameters where ' +
+  it.only('[Github #137]- Should add `requried` keyword in parameters where ' +
     'required field is set to true', function(done) {
     Converter.convertV2({ type: 'file', data: requiredInParams }, { schemaFaker: true }, (err, conversionResult) => {
       expect(err).to.be.null;
@@ -758,6 +758,8 @@ describe('The convert v2 Function', function() {
       request = requests[2].request;
       expect(request.body.formdata[0].description.content).to.equal('(Required) Description of formParam1');
       expect(request.body.formdata[1].description.content).to.equal('Description of formParam2');
+      expect(request.body.formdata[0].contentType).to.equal('application/xml');
+      expect(request.body.formdata[1].contentType).to.equal('application/js');
 
       // POST /pets
       // RequestBody: application/x-www-form-urlencoded