How can I test :inclusion validation in Rails using RSpec

Question

I have the following validation in my ActiveRecord.

validates :active, :inclusion => {:in => [\'Y\', \'N\']}

I am using the following to

Answer 1

If you have more elements to test than a boolean Y/N then you could also try.

it "should allow valid values" do
  %w(item1 item2 item3 item4).each do |v|
    should allow_value(v).for(:field)
  end
end
it { should_not allow_value("other").for(:role) }

You can also replace the %w() with a constant you have defined in your model so that it tests that only the constant values are allowed.

CONSTANT = %w[item1 item2 item3 item4]
validates :field, :inclusion => CONSTANT

Then the test:

it "should allow valid values" do
  Model::CONSTANT.each do |v|
    should allow_value(v).for(:field)
  end
end