1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
require 'spec_helper'
module RSpec
module Mocks
describe InstanceMethodStasher do
class ExampleClass
def hello
:hello_defined_on_class
end
end
def singleton_class_for(obj)
class << obj; self; end
end
it "stashes the current implementation of an instance method so it can be temporarily replaced" do
obj = Object.new
def obj.hello; :hello_defined_on_singleton_class; end;
stashed_method = InstanceMethodStasher.new(singleton_class_for(obj), :hello)
stashed_method.stash
def obj.hello; :overridden_hello; end
expect(obj.hello).to eql :overridden_hello
stashed_method.restore
expect(obj.hello).to eql :hello_defined_on_singleton_class
end
it "stashes private instance methods" do
obj = Object.new
def obj.hello; :hello_defined_on_singleton_class; end;
singleton_class_for(obj).__send__(:private, :hello)
stashed_method = InstanceMethodStasher.new(singleton_class_for(obj), :hello)
stashed_method.stash
def obj.hello; :overridden_hello; end
stashed_method.restore
expect(obj.send(:hello)).to eql :hello_defined_on_singleton_class
end
it "only stashes methods directly defined on the given class, not its ancestors" do
obj = ExampleClass.new
stashed_method = InstanceMethodStasher.new(singleton_class_for(obj), :hello)
stashed_method.stash
def obj.hello; :overridden_hello; end;
expect(obj.hello).to eql :overridden_hello
stashed_method.restore
expect(obj.hello).to eql :overridden_hello
end
end
end
end
|
