How to write test controller

[Dev.s]

Hello

I’m working on the users controller (create, update, and show) I want to write a Test to check if the user’s email exists or not without the use “respec”. How can do it?

test “should reject duplicate an email” do // what must write here? end

Regards

[od-c0d3r]

For more quicker results, I highly recommend you @Dev.s to learn how to use ChatGPT, instead of waiting someone else to do it for us:

To test whether the user’s email already exists or not, you can create a new user with a unique email address in the database, and then attempt to create another user with the same email address. Here’s an example of how you can do that:

test "should reject duplicate email" do
  # Create a user with a unique email
  user1 = User.create(name: "John", email: "john@example.com", password: "password")
  
  # Attempt to create another user with the same email
  user2 = User.new(name: "Jane", email: "john@example.com", password: "password")
  user2.save
  
  # Assert that the second user is not valid and has an error on the email field
  assert_not user2.valid?
  assert_equal ["has already been taken"], user2.errors[:email]
end

In this test, we create a new user user1 with a unique email addressjohn@example.com. Then, we attempt to create another user user2with the same email address. We check that user2 is not valid and has an error on the email field, with the error message “has already been taken”. This confirms that the uniqueness validation on the email field is working correctly.