test(interactive-mode): Covered new allowInquirerPlugins option

Author: Romain Gagnaire

src/interactive-mode.js

@@ -3,6 +3,7 @@ const inquirer = require('inquirer');
 /**
  * Initiate an interactive prompt to get values from the user.
  * @param {object} values The values to configure the prompt
+ * @param {object} inquirerOptions Payload encapsulating runtime configuration options for inquirer, mainly "allowInquirerPlugins", which enables support of inquirer plugins
  * @return {object} A promise that, when fullfilled, will contain answer of the questions prompted to the user
  */
 module.exports = (values = {}, inquirerOptions = {}) => {

test/interactive-mode.test.js

@@ -2,13 +2,15 @@ const inquirer = require('inquirer');
 const interactiveMode = require('../src/interactive-mode');
 
 describe('interactive-mode', () => {
+  let createdInquirerPromptStub;
   let inquirerCreatePromptModuleStub;
   let inquirerPromptStub;
   let values;
 
   beforeAll(() => {
-    inquirerPromptStub = jest.fn();
-    inquirerCreatePromptModuleStub = jest.spyOn(inquirer, 'createPromptModule').mockReturnValue(inquirerPromptStub);
+    createdInquirerPromptStub = jest.fn();
+    inquirerCreatePromptModuleStub = jest.spyOn(inquirer, 'createPromptModule').mockReturnValue(createdInquirerPromptStub);
+    inquirerPromptStub = jest.spyOn(inquirer, 'prompt').mockResolvedValue({});
   });
 
   describe('with no values', () => {
@@ -22,7 +24,7 @@ describe('interactive-mode', () => {
     });
 
     test('should call prompt', () => {
-      expect(inquirerPromptStub).toHaveBeenCalled();
+      expect(createdInquirerPromptStub).toHaveBeenCalled();
     });
   });
 
@@ -48,11 +50,59 @@ describe('interactive-mode', () => {
     });
 
     test('should call prompt', () => {
+      expect(createdInquirerPromptStub).toHaveBeenCalled();
+    });
+
+    test('should properly transform the values to inquirer values', () => {
+      const args = createdInquirerPromptStub.mock.calls[1][0];
+      expect(args.length).toEqual(Object.keys(values).length);
+
+      args.forEach((question) => {
+        const inputValues = values[question.name];
+        expect(inputValues).toBeTruthy();
+        expect(question.type).toBe(inputValues.type);
+        expect(question.message).toBe(inputValues.describe);
+        expect(question.default).toBe(inputValues.default);
+        expect(question.choices).toBe(inputValues.choices);
+      });
+    });
+  });
+
+  describe('with support of inquirer plugins', () => {
+    beforeAll(() => {
+      const inquirerOptions = {
+        allowInquirerPlugins: true,
+      };
+
+      values = {
+        title: {
+          type: 'input',
+          describe: 'Message to display',
+          default: 'default value',
+        },
+        message: {
+          type: 'list',
+          describe: 'Welcome message',
+          choices: ['hi', 'hello', 'hola!'],
+        }
+      };
+      interactiveMode(values, inquirerOptions);
+    });
+
+    test('should not have called createPromptModule', () => {
+      expect(inquirerCreatePromptModuleStub).not.toHaveBeenCalled();
+    });
+
+    test('should not have called prompt generated by createPromptModule', () => {
+      expect(createdInquirerPromptStub).not.toHaveBeenCalled();
+    });
+
+    test('should call the standard inquirer.prompt() method', () => {
       expect(inquirerPromptStub).toHaveBeenCalled();
     });
 
     test('should properly transform the values to inquirer values', () => {
-      const args = inquirerPromptStub.mock.calls[1][0];
+      const args = inquirerPromptStub.mock.calls[0][0];
       expect(args.length).toEqual(Object.keys(values).length);
 
       args.forEach((question) => {