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Contents
require 'rspec/expectations'
Minitest::Test.class_eval do
include ::RSpec::Matchers
# This `expect` will only be called if the user is using Minitest < 5.6
# or if they are _not_ using Minitest::Spec on 5.6+. Minitest::Spec on 5.6+
# defines its own `expect` and will have the assertions incremented via our
# definitions of `to`/`not_to`/`to_not` below.
def expect(*a, &b)
self.assertions += 1
super
end
# Convert a `MultipleExpectationsNotMetError` to a `Minitest::Assertion` error so
# it gets counted in minitest's summary stats as a failure rather than an error.
# It would be nice to make `MultipleExpectationsNotMetError` subclass
# `Minitest::Assertion`, but Minitest's implementation does not treat subclasses
# the same, so this is the best we can do.
def aggregate_failures(*args, &block)
super
rescue RSpec::Expectations::MultipleExpectationsNotMetError => e
assertion_failed = Minitest::Assertion.new(e.message)
assertion_failed.set_backtrace e.backtrace
raise assertion_failed
end
end
# Older versions of Minitest (e.g. before 5.6) do not define
# `Minitest::Expectation`.
if defined?(::Minitest::Expectation)
Minitest::Expectation.class_eval do
include RSpec::Expectations::ExpectationTarget::InstanceMethods
def to(*args)
ctx.assertions += 1
super
end
def not_to(*args)
ctx.assertions += 1
super
end
def to_not(*args)
ctx.assertions += 1
super
end
end
end
module RSpec
module Expectations
remove_const :ExpectationNotMetError
# Exception raised when an expectation fails.
const_set :ExpectationNotMetError, ::Minitest::Assertion
end
end
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