added tests for function readSpecFile

index.js

@@ -83,13 +83,11 @@ module.exports = {
             output: convertedCollections
           });
         }
-        // eslint-disable-next-line no-else-return
+
-        else {
         return cb(null, {
           result: false,
           reason: reasonForFail
         });
-        }
       });
     }
     // eslint-disable-next-line no-else-return

test/unit/parse.test.js

@@ -43,4 +43,20 @@ describe('PARSE FUNCTION TESTS', function() {
 
     expect(result.openapi).to.equal('3.0.0');
   });
+
+  describe('readSpecFile function', function() {
+    it('Should return the content from a remote file', function() {
+      let file = 'https://raw.githubusercontent.com/OAI/OpenAPI-Specification' +
+      '/master/examples/v3.0/api-with-examples.yaml';
+      parse.readSpecFile(file).then((result) => {
+        expect(result.startsWith('openapi: "3.0.0"')).to.equal(true);
+      });
+    });
+    it('Should return the content from a local file', function() {
+      let file = path.join(__dirname, '../data/valid_openapi/petstore.yaml');
+      parse.readSpecFile(file).then((result) => {
+        expect(result.startsWith('openapi: 3.0.0')).to.equal(true);
+      });
+    });
+  });
 });