How can I use `should validate_presence_of` with a custom error message?
I'm testing my ActiveRecord models with Rspec. I've just added a custom error message to one of my validations, like this:
validates :accepted_terms_at, :presence => {:message => 'You must accept the Terms and Conditions to use this site.'}
Now the following test fails:
it { should validate_presence_of(:accepted_terms_at) }
... with the error Expected errors to include "can't be blank" when accepted_terms_at is set to nil.
So the test fails because it's looking through the validation error messages and expects to find the default one.
How can I tell Rspec what the new validation message should be?
What I've tried
1) Message as an argument:
it {should validate_presence_of(:accepted_terms_at, :message => 'your message')}
This gives the error wrong number of arguments (2 for 1)
2) Message as a chained method call
it {should validate_presence_of(:accepted_terms_at).with('your message')}
This throws an error because there is no with method.
Answer
It's included and standard in shoulda :
it { should validate_presence_of(:name).
with_message(/is not optional/) }