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rspecrspec-rails

Using RSpec, is there a way to assert whether a specific attribute of a Model is invalid?

I am new to RSpec and I have a test scenario in which I write:

my_object.should_not be_valid

and it works ok. However, I would like to test whether a particular attribute of the model is not valid. Is such a ready-made RSpec behaviour? Can I write something like:

my_object.should_not be_valid(:name)

Ideally, I would like to be able to test the number of errors too, with something like:

my_object.should_not be_valid(:name => 1)

but this is not that important to me now.

Solution

  • According to this, you should be able to write either like this:

    describe Person do
  it "should validate presence of email" do
    person = Person.new(:email =>; nil)
    person.should_not be_valid
    person.should have(1).error_on(:email)
  end
end

    Or like below, by using these rspec matchers:

    describe Person do
  it { should validate_presence_of(:email) }
end