Controller tests in Ruby on Rails - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to send a GET request to the index action in a Rails controller test.

Ruby on Rails

get [1]

Drag options to blanks, or click blank then click option'

Ausers_url

Bshow_url

Cedit_url

Dnew_url

Attempts:

3 left

💡 Hint

Common Mistakes

Using show_url instead of users_url

Using post instead of get

Forgetting to call the URL helper

In Rails controller tests, to test the index action, you send a GET request to users_url.

2fill in blank

medium

Complete the code to check that the response was successful in a Rails controller test.

Ruby on Rails

assert_response [1]

Drag options to blanks, or click blank then click option'

A:success

B:redirect

C:error

D:missing

Attempts:

3 left

💡 Hint

Common Mistakes

Using :redirect when expecting success

Using :error which means failure

Using :missing which means 404 not found

The assert_response :success checks that the HTTP response status is 200 OK.

3fill in blank

hard

Fix the error in the test code to correctly check that a new record was created after a POST request.

Ruby on Rails

assert_difference('[1].count', 1) do
  post users_url, params: { user: { name: 'Alice' } }
end

Drag options to blanks, or click blank then click option'

Auser

Busers

CUsers

DUser

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase or plural names for the model

Using variable names instead of class names

The model class name User must be capitalized to check the count of records.

4fill in blank

hard

Fill both blanks to test that the show action renders successfully for a given user.

Ruby on Rails

get [1]([2])
assert_response :success

Drag options to blanks, or click blank then click option'

Auser_url

Buser

Cpost_url

Dpost

Attempts:

3 left

💡 Hint

Common Mistakes

Using post_url instead of user_url

Passing the model class instead of an instance

Use user_url to send the GET request and user to specify the user.

5fill in blank

hard

Fill all three blanks to test updating a user's name and checking the redirect.

Ruby on Rails

patch [1], params: { id: [2].id, user: { name: 'Bob' } }
assert_redirected_to [3]

Drag options to blanks, or click blank then click option'

Auser_url(user)

Buser

C:user

Dusers_url

Attempts:

3 left

💡 Hint

Common Mistakes

Using users_url instead of user_url(user)

Using symbol instead of URL helper for redirect

Passing class instead of instance for id

Use user_url(user) for the patch request URL, pass the user object for the id, and check redirect to user_url(user).