blob: 7d63fa7cc612233e977875516584bc8b04e747f6 (
plain)
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
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
require_relative '../../spec_helper'
describe "Kernel#singleton_method" do
it "finds a method defined on the singleton class" do
obj = Object.new
def obj.foo; end
obj.singleton_method(:foo).should be_an_instance_of(Method)
end
it "returns a Method which can be called" do
obj = Object.new
def obj.foo; 42; end
obj.singleton_method(:foo).call.should == 42
end
it "only looks at singleton methods and not at methods in the class" do
klass = Class.new do
def foo
42
end
end
obj = klass.new
obj.foo.should == 42
-> {
obj.singleton_method(:foo)
}.should raise_error(NameError) { |e|
# a NameError and not a NoMethodError
e.class.should == NameError
}
end
it "raises a NameError if there is no such method" do
obj = Object.new
-> {
obj.singleton_method(:not_existing)
}.should raise_error(NameError) { |e|
# a NameError and not a NoMethodError
e.class.should == NameError
}
end
ruby_bug "#20620", ""..."3.4" do
it "finds a method defined in a module included in the singleton class" do
m = Module.new do
def foo
:foo
end
end
obj = Object.new
obj.singleton_class.include(m)
obj.singleton_method(:foo).should be_an_instance_of(Method)
obj.singleton_method(:foo).call.should == :foo
end
it "finds a method defined in a module prepended in the singleton class" do
m = Module.new do
def foo
:foo
end
end
obj = Object.new
obj.singleton_class.prepend(m)
obj.singleton_method(:foo).should be_an_instance_of(Method)
obj.singleton_method(:foo).call.should == :foo
end
it "finds a method defined in a module that an object is extended with" do
m = Module.new do
def foo
:foo
end
end
obj = Object.new
obj.extend(m)
obj.singleton_method(:foo).should be_an_instance_of(Method)
obj.singleton_method(:foo).call.should == :foo
end
end
end
|
