Use of lodash to access properties

instead of accessing spec.info.title directly,

Author: LuisTejedaS

lib/30XUtils/inputValidation.js

@@ -32,14 +32,14 @@ module.exports = {
     }
 
     if (!spec.info.hasOwnProperty('$ref')) {
-      if (_.isNil(spec.info.title)) {
+      if (_.isNil(_.get(spec, 'info.title'))) {
         return {
           result: false,
           reason: 'Specification must contain a title in order to generate a collection'
         };
       }
 
-      if (_.isNil(spec.info.version)) {
+      if (_.isNil(_.get(spec, 'info.version'))) {
         return {
           result: false,
           reason: 'Specification must contain a semantic version number of the API in the Info Object'

lib/31XUtils/inputValidation31X.js

@@ -26,14 +26,14 @@ module.exports = {
     }
 
     if (!spec.info.hasOwnProperty('$ref')) {
-      if (_.isNil(spec.info.title)) {
+      if (_.isNil(_.get(spec, 'info.title'))) {
         return {
           result: false,
           reason: 'Specification must contain a title in order to generate a collection'
         };
       }
 
-      if (_.isNil(spec.info.version)) {
+      if (_.isNil(_.get(spec, 'info.version'))) {
         return {
           result: false,
           reason: 'Specification must contain a semantic version number of the API in the Info Object'

lib/swaggerUtils/inputValidationSwagger.js

@@ -1,4 +1,4 @@
-
+const _ = require('lodash');
 module.exports = {
 
   /**
@@ -20,7 +20,8 @@ module.exports = {
         reason: 'The Swagger specification must have an "info" field'
       };
     }
-    if (!(spec.info.title && spec.info.version) && !options.isFolder) {
+    if (!(_.get(spec, 'info.title') && _.get(spec, 'info.version')) && !options.isFolder) {
+
       return {
         result: false,
         reason: 'Title, and version fields are required for the Info Object'