Gem "normalizr" cause CouldNotSetAttributeError on downcased email attribute

[aya-soft]

Hi, guys!

Given: https://github.com/dimko/normalizr

class User
  normalize :email, with: :strip_downcase
end

Spec:
it { is_expected.to validate_uniqueness_of(:email).with_message('an account with this email address already exists').case_insensitive }
Error:

  1) User Validations Email validations should require unique value for email
     Failure/Error: it { is_expected.to validate_uniqueness_of(:email).with_message('an account with this email address already exists').case_insensitive }
     
     Shoulda::Matchers::ActiveModel::AllowValueMatcher::CouldNotSetAttributeError:
       The allow_value matcher attempted to set :email on User to "A", but
       when the attribute was read back, it had stored "a" instead.

Guys, what is the right way to test attributes which values can be changed on the fly?
With this line commented all works fine (allow_value_matcher.rb):
# ensure_that_attribute_was_set!(value)

[mcmire]

@aya-soft Try tacking .ignoring_case_insensitivity onto the end of the matcher instead of .case_insensitive. See: http://matchers.shoulda.io/docs/v3.1.1/Shoulda/Matchers/ActiveRecord.html#validate_uniqueness_of-instance_method (you might have to scroll down a bit).

[aya-soft]

Works with .ignoring_case_sensitivity, thank you! Please correct the typo.

[mcmire]

@aya-soft Oops, that's what I meant :)