gitlab-org--gitlab-foss/spec/support/matchers/satisfy_matchers.rb

19 lines
773 B
Ruby

# These matchers are a syntactic hack to provide more readable expectations for
# an Enumerable object.
#
# They take advantage of the `all?`, `none?`, and `one?` methods, and the fact
# that RSpec provides a `be_something` matcher for all predicates.
#
# Example:
#
# # Ensure exactly one object in an Array satisfies a condition
# expect(users.one? { |u| u.admin? }).to eq true
#
# # The same thing, but using the `be_one` matcher
# expect(users).to be_one { |u| u.admin? }
#
# # The same thing again, but using `satisfy_one` for improved readability
# expect(users).to satisfy_one { |u| u.admin? }
RSpec::Matchers.alias_matcher :satisfy_all, :be_all
RSpec::Matchers.alias_matcher :satisfy_none, :be_none
RSpec::Matchers.alias_matcher :satisfy_one, :be_one