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# frozen_string_literal: true
class Sinclair
module Matchers
# @api private
# @author darthjee
#
# Checks if a class method was changed
# by the call of a block
#
# This is used with a RSpec DSL method
# change_class_method(method_name).on(class_object)
class ChangeClassMethodOn < ChangeMethodOn
# @param target [Class]
# Class where the class method should be added to
#
# @param method_name [Symbol,String] method name
def initialize(target, method_name)
@klass = target
super(method_name)
end
# Return expectaton description
#
# @return [String]
def description
"change class method '#{method_name}' on #{klass}"
end
# Returns message on expectation failure
#
# @return [String]
def failure_message_for_should
"expected class method '#{method_name}' to be changed on #{klass} but " \
"#{initial_state ? "it didn't" : "it didn't exist"}"
end
# Returns message on expectation failure for negative expectation
#
# @return [String]
def failure_message_for_should_not
"expected class method '#{method_name}' not to be changed on #{klass} but it was"
end
private
# Checks if class has instance method defined
#
# @return [Boolean]
def state
klass.methods(false).include?(method_name.to_sym) \
&& klass.method(method_name)
end
# Raises when block was not given
#
# @raise SyntaxError
def raise_block_syntax_error
raise SyntaxError, 'Block not received by the `change_class_method_on` matcher. ' \
'Perhaps you want to use `{ ... }` instead of do/end?'
end
end
end
end
Version data entries
19 entries across 19 versions & 1 rubygems