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
86
87
88
89
90
91
92
93
94
95
96
97
98
|
require_relative '../../spec_helper'
require_relative 'fixtures/classes'
describe "Module#method_defined?" do
it "returns true if a public or private method with the given name is defined in self, self's ancestors or one of self's included modules" do
# Defined in Child
ModuleSpecs::Child.method_defined?(:public_child).should == true
ModuleSpecs::Child.method_defined?("private_child").should == false
ModuleSpecs::Child.method_defined?(:accessor_method).should == true
# Defined in Parent
ModuleSpecs::Child.method_defined?("public_parent").should == true
ModuleSpecs::Child.method_defined?(:private_parent).should == false
# Defined in Module
ModuleSpecs::Child.method_defined?(:public_module).should == true
ModuleSpecs::Child.method_defined?(:protected_module).should == true
ModuleSpecs::Child.method_defined?(:private_module).should == false
# Defined in SuperModule
ModuleSpecs::Child.method_defined?(:public_super_module).should == true
ModuleSpecs::Child.method_defined?(:protected_super_module).should == true
ModuleSpecs::Child.method_defined?(:private_super_module).should == false
end
# unlike alias_method, module_function, public, and friends,
it "does not search Object or Kernel when called on a module" do
m = Module.new
m.method_defined?(:module_specs_public_method_on_kernel).should be_false
end
it "raises a TypeError when the given object is not a string/symbol" do
c = Class.new
o = mock('123')
-> { c.method_defined?(o) }.should raise_error(TypeError)
o.should_receive(:to_str).and_return(123)
-> { c.method_defined?(o) }.should raise_error(TypeError)
end
it "converts the given name to a string using to_str" do
c = Class.new { def test(); end }
(o = mock('test')).should_receive(:to_str).and_return("test")
c.method_defined?(o).should == true
end
# works as method_defined?(method_name)
describe "when passed true as a second optional argument" do
it "performs a lookup in ancestors" do
ModuleSpecs::Child.method_defined?(:public_child, true).should == true
ModuleSpecs::Child.method_defined?(:protected_child, true).should == true
ModuleSpecs::Child.method_defined?(:accessor_method, true).should == true
ModuleSpecs::Child.method_defined?(:private_child, true).should == false
# Defined in Parent
ModuleSpecs::Child.method_defined?(:public_parent, true).should == true
ModuleSpecs::Child.method_defined?(:protected_parent, true).should == true
ModuleSpecs::Child.method_defined?(:private_parent, true).should == false
# Defined in Module
ModuleSpecs::Child.method_defined?(:public_module, true).should == true
ModuleSpecs::Child.method_defined?(:protected_module, true).should == true
ModuleSpecs::Child.method_defined?(:private_module, true).should == false
# Defined in SuperModule
ModuleSpecs::Child.method_defined?(:public_super_module, true).should == true
ModuleSpecs::Child.method_defined?(:protected_super_module, true).should == true
ModuleSpecs::Child.method_defined?(:private_super_module, true).should == false
end
end
describe "when passed false as a second optional argument" do
it "checks only the class itself" do
ModuleSpecs::Child.method_defined?(:public_child, false).should == true
ModuleSpecs::Child.method_defined?(:protected_child, false).should == true
ModuleSpecs::Child.method_defined?(:accessor_method, false).should == true
ModuleSpecs::Child.method_defined?(:private_child, false).should == false
# Defined in Parent
ModuleSpecs::Child.method_defined?(:public_parent, false).should == false
ModuleSpecs::Child.method_defined?(:protected_parent, false).should == false
ModuleSpecs::Child.method_defined?(:private_parent, false).should == false
# Defined in Module
ModuleSpecs::Child.method_defined?(:public_module, false).should == false
ModuleSpecs::Child.method_defined?(:protected_module, false).should == false
ModuleSpecs::Child.method_defined?(:private_module, false).should == false
# Defined in SuperModule
ModuleSpecs::Child.method_defined?(:public_super_module, false).should == false
ModuleSpecs::Child.method_defined?(:protected_super_module, false).should == false
ModuleSpecs::Child.method_defined?(:private_super_module, false).should == false
end
end
end
|
