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Contents
module RuboCop
module Cop
module RSpec
# Check that instances are not being stubbed globally.
#
# Prefer instance doubles over stubbing any instance of a class
#
# @example
# # bad
# describe MyClass do
# before { allow_any_instance_of(MyClass).to receive(:foo) }
# end
#
# # good
# describe MyClass do
# let(:my_instance) { instance_double(MyClass) }
#
# before do
# allow(MyClass).to receive(:new).and_return(my_instance)
# allow(my_instance).to receive(:foo)
# end
# end
class AnyInstance < Cop
MSG = 'Avoid stubbing using `%<method>s`.'.freeze
def_node_matcher :disallowed_stub, <<-PATTERN
(send _ ${:any_instance :allow_any_instance_of :expect_any_instance_of} ...)
PATTERN
def on_send(node)
disallowed_stub(node) do |method|
add_offense(
node,
location: :expression,
message: format(MSG, method: method)
)
end
end
end
end
end
end
Version data entries
20 entries across 20 versions & 1 rubygems