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?
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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: "firstname.lastname@example.org", password: "password")
# Attempt to create another user with the same email
user2 = User.new(name: "Jane", email: "email@example.com", password: "password")
# Assert that the second user is not valid and has an error on the email field
assert_equal ["has already been taken"], user2.errors[:email]
In this test, we create a new user
user1 with a unique email address
firstname.lastname@example.org. 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.