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Versions: 17
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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module RSpec
# Checks for long examples.
#
# A long example is usually more difficult to understand. Consider
# extracting out some behaviour, e.g. with a `let` block, or a helper
# method.
#
# @example
# # bad
# it do
# service = described_class.new
# more_setup
# more_setup
# result = service.call
# expect(result).to be(true)
# end
#
# # good
# it do
# service = described_class.new
# result = service.call
# expect(result).to be(true)
# end
class ExampleLength < Cop
include CodeLength
MSG = 'Example has too many lines [%<total>d/%<max>d].'.freeze
def on_block(node)
return unless example?(node)
length = code_length(node)
return unless length > max_length
add_offense(node, location: :expression, message: message(length))
end
private
def code_length(node)
node.source.lines[1..-2].count { |line| !irrelevant_line(line) }
end
def message(length)
format(MSG, total: length, max: max_length)
end
end
end
end
end
Version data entries
17 entries across 17 versions & 1 rubygems