Merge pull request ferdikoomen#962 from vyobukhov/feature/support-empty-model-properties

Add support for empty model properties that are valid in OpenAPI

Author: ferdikoomen

src/openApi/v3/parser/escapeName.spec.ts

@@ -2,7 +2,7 @@ import { escapeName } from './escapeName';
 
 describe('escapeName', () => {
     it('should escape', () => {
-        expect(escapeName('')).toEqual('');
+        expect(escapeName('')).toEqual("''");
         expect(escapeName('fooBar')).toEqual('fooBar');
         expect(escapeName('Foo Bar')).toEqual(`'Foo Bar'`);
         expect(escapeName('foo bar')).toEqual(`'foo bar'`);

src/openApi/v3/parser/escapeName.ts

@@ -1,5 +1,5 @@
 export const escapeName = (value: string): string => {
-    if (value) {
+    if (value || value === '') {
         const validName = /^[a-zA-Z_$][\w$]+$/g.test(value);
         if (!validName) {
             return `'${value}'`;