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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Minitest
# Enforces the test to use `assert_silent { ... }`
# instead of using `assert_output('', '') { ... }`.
#
# @example
# # bad
# assert_output('', '') { puts object.do_something }
#
# # good
# assert_silent { puts object.do_something }
#
class AssertSilent < Base
extend AutoCorrector
MSG = 'Prefer using `assert_silent`.'
def_node_matcher :assert_silent_candidate?, <<~PATTERN
(block
(send nil? :assert_output
#empty_string?
#empty_string?)
...)
PATTERN
def on_block(node) # rubocop:disable InternalAffairs/NumblockHandler
return unless assert_silent_candidate?(node)
send_node = node.send_node
add_offense(send_node) do |corrector|
corrector.replace(send_node, 'assert_silent')
end
end
private
def empty_string?(node)
node.str_type? && node.value.empty?
end
end
end
end
end
Version data entries
34 entries across 34 versions & 2 rubygems