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
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
module EnumerableSpecs
class Numerous
include Enumerable
def initialize(*list)
@list = list.empty? ? [2, 5, 3, 6, 1, 4] : list
end
def each
@list.each { |i| yield i }
end
end
class EachCounter < Numerous
attr_reader :times_called, :times_yielded, :arguments_passed
def initialize(*list)
super(*list)
@times_yielded = @times_called = 0
end
def each(*arg)
@times_called += 1
@times_yielded = 0
@arguments_passed = arg
@list.each do |i|
@times_yielded +=1
yield i
end
end
end
class Empty
include Enumerable
def each
end
end
class ThrowingEach
include Enumerable
def each
raise "from each"
end
end
class NoEach
include Enumerable
end
# (Legacy form rubycon)
class EachDefiner
include Enumerable
attr_reader :arr
def initialize(*arr)
@arr = arr
end
def each
i = 0
loop do
break if i == @arr.size
yield @arr[i]
i += 1
end
end
end
class SortByDummy
def initialize(s)
@s = s
end
def s
@s
end
end
class ComparesByVowelCount
attr_accessor :value, :vowels
def self.wrap(*args)
args.map {|element| ComparesByVowelCount.new(element)}
end
def initialize(string)
self.value = string
all_vowels = ['a', 'e' , 'i' , 'o', 'u']
self.vowels = string.gsub(/[^aeiou]/,'').size
end
def <=>(other)
self.vowels <=> other.vowels
end
end
class InvalidComparable
def <=>(other)
"Not Valid"
end
end
class ArrayConvertable
attr_accessor :called
def initialize(*values)
@values = values
end
def to_a
self.called = :to_a
@values
end
def to_ary
self.called = :to_ary
@values
end
end
class EnumConvertable
attr_accessor :called
attr_accessor :sym
def initialize(delegate)
@delegate = delegate
end
def to_enum(sym)
self.called = :to_enum
self.sym = sym
@delegate.to_enum(sym)
end
def respond_to_missing?(*args)
@delegate.respond_to?(*args)
end
end
class Equals
def initialize(obj)
@obj = obj
end
def ==(other)
@obj == other
end
end
class YieldsMulti
include Enumerable
def each
yield 1,2
yield 3,4,5
yield 6,7,8,9
end
end
class YieldsMultiWithFalse
include Enumerable
def each
yield false,2
yield false,4,5
yield false,7,8,9
end
end
class YieldsMultiWithSingleTrue
include Enumerable
def each
yield false,2
yield true,4,5
yield false,7,8,9
end
end
class YieldsMixed
include Enumerable
def each
yield 1
yield [2]
yield 3,4
yield 5,6,7
yield [8,9]
yield nil
yield []
end
end
class ReverseComparable
include Comparable
def initialize(num)
@num = num
end
attr_accessor :num
# Reverse comparison
def <=>(other)
other.num <=> @num
end
end
class ComparableWithFixnum
include Comparable
def initialize(num)
@num = num
end
def <=>(fixnum)
@num <=> fixnum
end
end
class Uncomparable
def <=>(obj)
nil
end
end
class Undupable
attr_reader :initialize_called, :initialize_dup_called
def dup
raise "Can't, sorry"
end
def clone
raise "Can't, either, sorry"
end
def initialize
@initialize_dup = true
end
def initialize_dup(arg)
@initialize_dup_called = true
end
end
end # EnumerableSpecs utility classes
|
