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
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
|
require 'test/unit'
class TestNumeric < Test::Unit::TestCase
class DummyNumeric < Numeric
end
def test_coerce
a, b = 1.coerce(2)
assert_equal(Fixnum, a.class)
assert_equal(Fixnum, b.class)
a, b = 1.coerce(2.0)
assert_equal(Float, a.class)
assert_equal(Float, b.class)
assert_raise(TypeError) { -Numeric.new }
assert_raise_with_message(TypeError, /can't be coerced into /) {1+:foo}
assert_raise_with_message(TypeError, /can't be coerced into /) {1&:foo}
assert_raise_with_message(TypeError, /can't be coerced into /) {1|:foo}
assert_raise_with_message(TypeError, /can't be coerced into /) {1^:foo}
end
def test_dummynumeric
a = DummyNumeric.new
DummyNumeric.class_eval do
def coerce(x); nil; end
end
assert_raise(TypeError) { -a }
assert_nil(1 <=> a)
assert_raise(ArgumentError) { 1 <= a }
DummyNumeric.class_eval do
remove_method :coerce
def coerce(x); 1.coerce(x); end
end
assert_equal(2, 1 + a)
assert_equal(0, 1 <=> a)
assert_operator(1, :<=, a)
DummyNumeric.class_eval do
remove_method :coerce
def coerce(x); [x, 1]; end
end
assert_equal(-1, -a)
ensure
DummyNumeric.class_eval do
remove_method :coerce
end
end
def test_numeric
a = Numeric.new
assert_raise(TypeError) { def a.foo; end }
assert_raise(TypeError) { eval("def a.\u3042; end") }
assert_raise(TypeError) { a.dup }
end
def test_quo
assert_raise(TypeError) {DummyNumeric.new.quo(1)}
end
def test_quo_ruby_core_41575
x = DummyNumeric.new
rat = 84.quo(1)
DummyNumeric.class_eval do
define_method(:to_r) { rat }
end
assert_equal(2.quo(1), x.quo(42), '[ruby-core:41575]')
ensure
DummyNumeric.class_eval do
remove_method :to_r
end
end
def test_divmod
=begin
DummyNumeric.class_eval do
def /(x); 42.0; end
def %(x); :mod; end
end
assert_equal(42, DummyNumeric.new.div(1))
assert_equal(:mod, DummyNumeric.new.modulo(1))
assert_equal([42, :mod], DummyNumeric.new.divmod(1))
=end
assert_kind_of(Integer, 11.divmod(3.5).first, '[ruby-dev:34006]')
=begin
ensure
DummyNumeric.class_eval do
remove_method :/, :%
end
=end
end
def test_real_p
assert_predicate(Numeric.new, :real?)
end
def test_integer_p
assert_not_predicate(Numeric.new, :integer?)
end
def test_abs
a = DummyNumeric.new
DummyNumeric.class_eval do
def -@; :ok; end
def <(x); true; end
end
assert_equal(:ok, a.abs)
DummyNumeric.class_eval do
remove_method :<
def <(x); false; end
end
assert_equal(a, a.abs)
ensure
DummyNumeric.class_eval do
remove_method :-@, :<
end
end
def test_zero_p
DummyNumeric.class_eval do
def ==(x); true; end
end
assert_predicate(DummyNumeric.new, :zero?)
ensure
DummyNumeric.class_eval do
remove_method :==
end
end
def test_to_int
DummyNumeric.class_eval do
def to_i; :ok; end
end
assert_equal(:ok, DummyNumeric.new.to_int)
ensure
DummyNumeric.class_eval do
remove_method :to_i
end
end
def test_cmp
a = Numeric.new
assert_equal(0, a <=> a)
assert_nil(a <=> :foo)
end
def test_floor_ceil_round_truncate
DummyNumeric.class_eval do
def to_f; 1.5; end
end
a = DummyNumeric.new
assert_equal(1, a.floor)
assert_equal(2, a.ceil)
assert_equal(2, a.round)
assert_equal(1, a.truncate)
DummyNumeric.class_eval do
remove_method :to_f
def to_f; 1.4; end
end
a = DummyNumeric.new
assert_equal(1, a.floor)
assert_equal(2, a.ceil)
assert_equal(1, a.round)
assert_equal(1, a.truncate)
DummyNumeric.class_eval do
remove_method :to_f
def to_f; -1.5; end
end
a = DummyNumeric.new
assert_equal(-2, a.floor)
assert_equal(-1, a.ceil)
assert_equal(-2, a.round)
assert_equal(-1, a.truncate)
ensure
DummyNumeric.class_eval do
remove_method :to_f
end
end
def assert_step(expected, (from, *args), inf: false)
enum = from.step(*args)
size = enum.size
xsize = expected.size
if inf
assert_send [size, :infinite?], "step size: +infinity"
assert_send [size, :>, 0], "step size: +infinity"
a = []
from.step(*args) { |x| a << x; break if a.size == xsize }
assert_equal expected, a, "step"
a = []
enum.each { |x| a << x; break if a.size == xsize }
assert_equal expected, a, "step enumerator"
else
assert_equal expected.size, size, "step size"
a = []
from.step(*args) { |x| a << x }
assert_equal expected, a, "step"
a = []
enum.each { |x| a << x }
assert_equal expected, a, "step enumerator"
end
end
def test_step
assert_raise(ArgumentError) { 1.step(10, 1, 0) { } }
assert_raise(ArgumentError) { 1.step(10, 1, 0).size }
assert_raise(ArgumentError) { 1.step(10, 0) { } }
assert_raise(ArgumentError) { 1.step(10, 0).size }
assert_raise(ArgumentError) { 1.step(10, "1") { } }
assert_raise(ArgumentError) { 1.step(10, "1").size }
assert_raise(TypeError) { 1.step(10, nil) { } }
assert_raise(TypeError) { 1.step(10, nil).size }
assert_nothing_raised { 1.step(by: 0, to: nil) }
assert_nothing_raised { 1.step(by: 0, to: nil).size }
assert_nothing_raised { 1.step(by: 0) }
assert_nothing_raised { 1.step(by: 0).size }
assert_nothing_raised { 1.step(by: nil) }
assert_nothing_raised { 1.step(by: nil).size }
assert_step [1, 2, 3, 4, 5, 6, 7, 8, 9, 10], [1, 10]
assert_step [1, 2, 3, 4, 5, 6, 7, 8, 9, 10], [1, to: 10]
assert_step [1, 2, 3, 4, 5, 6, 7, 8, 9, 10], [1, to: 10, by: nil]
assert_step [1, 3, 5, 7, 9], [1, 10, 2]
assert_step [1, 3, 5, 7, 9], [1, to: 10, by: 2]
assert_step [10, 8, 6, 4, 2], [10, 1, -2]
assert_step [10, 8, 6, 4, 2], [10, to: 1, by: -2]
assert_step [1.0, 3.0, 5.0, 7.0, 9.0], [1.0, 10.0, 2.0]
assert_step [1.0, 3.0, 5.0, 7.0, 9.0], [1.0, to: 10.0, by: 2.0]
assert_step [1], [1, 10, 2**32]
assert_step [1], [1, to: 10, by: 2**32]
assert_step [3, 3, 3, 3], [3, by: 0], inf: true
assert_step [10], [10, 1, -(2**32)]
assert_step [], [1, 0, Float::INFINITY]
assert_step [], [0, 1, -Float::INFINITY]
assert_step [10], [10, to: 1, by: -(2**32)]
assert_step [10, 11, 12, 13], [10], inf: true
assert_step [10, 9, 8, 7], [10, by: -1], inf: true
assert_step [10, 9, 8, 7], [10, by: -1, to: nil], inf: true
end
def test_num2long
assert_raise(TypeError) { 1 & nil }
assert_raise(TypeError) { 1 & 1.0 }
assert_raise(TypeError) { 1 & 2147483648.0 }
assert_raise(TypeError) { 1 & 9223372036854777856.0 }
o = Object.new
def o.to_int; 1; end
assert_raise(TypeError) { assert_equal(1, 1 & o) }
end
def test_eql
assert_equal(1, 1.0)
assert_not_operator(1, :eql?, 1.0)
assert_not_operator(1, :eql?, 2)
end
end
|