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
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
require 'spec_helper'
require 'extlib/object'
module HactiveSupport
class MemoizeConsideredUseless
end
end
class SymbolicDuck
def quack
end
end
class ClassyDuck
end
module Foo
class Bar
end
end
class Oi
attr_accessor :foo
end
describe Object do
describe "#full_const_get" do
it 'returns constant by FQ name in receiver namespace' do
Object.full_const_get("Oi").should == Oi
Object.full_const_get("Foo::Bar").should == Foo::Bar
end
end
describe "#full_const_set" do
it 'sets constant value by FQ name in receiver namespace' do
Object.full_const_set("HactiveSupport::MCU", HactiveSupport::MemoizeConsideredUseless)
Object.full_const_get("HactiveSupport::MCU").should == HactiveSupport::MemoizeConsideredUseless
HactiveSupport.full_const_get("MCU").should == HactiveSupport::MemoizeConsideredUseless
end
end
describe "#make_module" do
it 'creates a module from string FQ name' do
Object.make_module("Milano")
Object.make_module("Norway::Oslo")
Object.const_defined?("Milano").should == true
Norway.const_defined?("Oslo").should == true
end
it "handles the case where we already have a class in the heirarchy" do
Object.make_module("Foo::Bar::Baz")
Object.const_defined?("Foo").should == true
Foo.const_defined?("Bar").should == true
Foo::Bar.const_defined?("Baz").should == true
Foo::Bar::Baz.should be_kind_of(Module)
end
end
describe "#quacks_like?" do
it 'returns true if duck is a Symbol and receiver responds to it' do
SymbolicDuck.new.quacks_like?(:quack).should be(true)
end
it 'returns false if duck is a Symbol and receiver DOES NOT respond to it' do
SymbolicDuck.new.quacks_like?(:wtf).should be(false)
end
it 'returns true if duck is a class and receiver is its instance' do
receiver = ClassyDuck.new
receiver.quacks_like?(ClassyDuck).should be(true)
end
it 'returns false if duck is a class and receiver IS NOT its instance' do
receiver = ClassyDuck.new
receiver.quacks_like?(SymbolicDuck).should be(false)
end
it 'returns true if duck is an array and at least one of its members quacks like this duck' do
receiver = ClassyDuck.new
ary = [ClassyDuck, SymbolicDuck]
receiver.quacks_like?(ary).should be(true)
end
it 'returns false if duck is an array and none of its members quacks like this duck' do
receiver = ClassyDuck.new
ary = [SymbolicDuck.new, SymbolicDuck]
receiver.quacks_like?(ary).should be(false)
end
end
describe "#in?" do
it 'returns true if object is included in collection' do
@ary = [1, 2, 3]
@set = Set.new([2, 3, 5])
1.in?(@ary).should be(true)
2.in?(@ary).should be(true)
3.in?(@ary).should be(true)
4.in?(@ary).should be(false)
1.in?(@set).should be(false)
2.in?(@set).should be(true)
3.in?(@set).should be(true)
4.in?(@set).should be(false)
5.in?(@set).should be(true)
end
end
end
|
