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Versions: 9
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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Minitest
# This cop enforces correct order of expected and
# actual arguments for `assert_equal`.
#
# @example
# # bad
# assert_equal foo, 2
# assert_equal foo, [1, 2]
# assert_equal foo, [1, 2], 'message'
#
# # good
# assert_equal 2, foo
# assert_equal [1, 2], foo
# assert_equal [1, 2], foo, 'message'
#
class LiteralAsActualArgument < Base
include ArgumentRangeHelper
extend AutoCorrector
MSG = 'Replace the literal with the first argument.'
RESTRICT_ON_SEND = %i[assert_equal].freeze
def on_send(node)
return unless node.method?(:assert_equal)
expected, actual, message = *node.arguments
return unless actual&.recursive_basic_literal?
return if expected.recursive_basic_literal?
add_offense(all_arguments_range(node)) do |corrector|
autocorrect(corrector, node, expected, actual, message)
end
end
def autocorrect(corrector, node, expected, actual, message)
new_actual_source = if actual.hash_type? && !actual.braces?
"{#{actual.source}}"
else
actual.source
end
arguments = [new_actual_source, expected.source, message&.source].compact.join(', ')
corrector.replace(node, "assert_equal(#{arguments})")
end
end
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems