Mocha by InterTuts - Dailymotion

InterTuts

Mocha is a popular JavaScript test framework that provides a clear structure for defining and running tests. <br /><br />This playlist collects video tuts for Mocha.

Transcript

00:00For Google sign-in in MyAuthenticationService, I'm using the official API.

00:10Initially, the user must grant permissions to MyProject to access their data.

00:20Subsequently, Google redirects the user to a page containing the authorization code in the URL.

00:32In MyAuthenticationService, I'm using Next.js for the frontend.

00:40The authorization code is passed to the backend where a dedicated function handles it.

00:56In this function, I'm using the authorization code GoogleProjectCredentialsRedirectUri

01:12to exchange the authorization code for an access token.

01:22If the response is successful and I have obtained the access token,

01:34I will use the access token to request the user data, like ID and email.

01:52Here I'm using the Mongoose user model to search in MongoDB the user ID.

02:06If a user is found, it means the user is registered.

02:18I will generate a JWT token and return the user's data along with an access token.

02:40With this data, the user will be redirected to the dashboard page.

02:50If the user is not found, I will return the user ID from the Google API and the email.

03:14The user will be redirected to the registration page where will be asked to enter a password and create an account.

03:30Now, the question is how to test this code.

03:36I have created a test file and I'm using Rhino to build the tests.

03:50In my test file, I have created two mocks, one for ExpressRequest object and second for ExpressResponse object.

04:19These mocks will provide fake objects.

04:26I need to somehow isolate these requests.

04:44For this purpose, I have created four tabs and after each request, I'm restoring them.

05:04In my test case, I need to add a fake authorization code to my mocked request object

05:25because the function under test relies on it.

05:39In my test case, I will use even a mock for response because it is used even in my function and it will receive the response.

06:09For mocks, this is used for the request which exchanges the authorization code for an access token.

06:26I need to verify which field contains the response and set a response in this tab.

06:41This is valid even for the tab which replaces the request for user information.

06:55I need to verify which field returns the request and provide in this tab a response.

07:11This is for Mongo's user model.

07:20It returns user ID and email.

07:31If a user is found, I need to provide even a AWT token.

07:44Now, let's run a test.

08:01It works as expected, but this test is valid only for the sign-in.

08:17How about registration?

08:20For registration, I need to change the value for the tab which replaces the Mongo's user model.

08:51I need to change the value for the tab which replaces the Mongo's user model.

08:59I need to change the value for the tab which replaces the Mongo's user model.

09:08I need to change the value for the tab which replaces the Mongo's user model.

09:19Even this test is working as expected.

09:29Let's run a test.

09:36It works as expected, but this test is valid only for the sign-in.

09:45How about registration?

How to use the mocks and stubs with multiple API requests in Express.js using Sinon and Mocha

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Mocha

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