我正在尝试找到一种方法,可以覆盖方法,执行某些操作,然后在不留下任何工件的情况下进行恢复。
我已经使用 mocha 实现了这个,但显然这不会在生产应用程序中运行。请注意,新方法有参数,而旧方法没有。
示例如下
require 'rubygems'
require 'mocha'
class Example
def to_something
self.stubs(:attribs => other(1))
r = attribs_caller
self.unstub(:attribs)
r
end
def other(int)
{"other" => int }
end
def attribs_caller
attribs
end
def attribs
{"this" => 1 }
end
end
a1 = Example.new
puts a1.attribs_caller #=> this1
puts a1.to_something #=> other1
puts a1.attribs_caller #=> this1
class String
alias orig_reverse reverse
def reverse(n)
'fooled you. '*n
end
end
puts "ab".reverse(2)
#=> fooled you fooled you
# clean up:
class String
alias reverse orig_reverse
remove_method(:orig_reverse)
end
puts "ab".reverse #=> ba
本文内容由网友自发贡献,版权归原作者所有,本站不承担相应法律责任。如您发现有涉嫌抄袭侵权的内容,请联系:hwhale#tublm.com(使用前将#替换为@)