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Versions: 24
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Stored size: 1.35 KB
Contents
# frozen_string_literal: true
module RuboCop
module Cop
module RSpec
# Check that before/after(:all/:context) isn't being used.
#
# @example
# # bad - Faster but risk of state leaking between examples
# describe MyClass do
# before(:all) { Widget.create }
# after(:context) { Widget.delete_all }
# end
#
# # good - Slower but examples are properly isolated
# describe MyClass do
# before(:each) { Widget.create }
# after(:each) { Widget.delete_all }
# end
#
class BeforeAfterAll < Base
MSG = 'Beware of using `%<hook>s` as it may cause state to leak ' \
'between tests. If you are using `rspec-rails`, and ' \
'`use_transactional_fixtures` is enabled, then records created ' \
'in `%<hook>s` are not automatically rolled back.'
RESTRICT_ON_SEND = Set[:before, :after].freeze
# @!method before_or_after_all(node)
def_node_matcher :before_or_after_all, <<~PATTERN
$(send _ RESTRICT_ON_SEND (sym {:all :context}))
PATTERN
def on_send(node)
before_or_after_all(node) do |hook|
add_offense(
node,
message: format(MSG, hook: hook.source)
)
end
end
end
end
end
end
Version data entries
24 entries across 24 versions & 5 rubygems