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
|
require 'test/unit'
class TestFixnum < Test::Unit::TestCase
def setup
@verbose = $VERBOSE
$VERBOSE = nil
end
def teardown
$VERBOSE = @verbose
end
def test_pow
[1, 2, 2**64, 2**63*3, 2**64*3].each do |y|
[-1, 0, 1].each do |x|
z1 = x**y
z2 = (-x)**y
if y % 2 == 1
assert_equal(z2, -z1)
else
assert_equal(z2, z1)
end
end
end
end
def test_succ
assert_equal(0x40000000, 0x3fffffff.succ, "[ruby-dev:31189]")
assert_equal(0x4000000000000000, 0x3fffffffffffffff.succ, "[ruby-dev:31190]")
end
def test_pred
assert_equal(-0x40000001, (-0x40000000).pred)
assert_equal(-0x4000000000000001, (-0x4000000000000000).pred)
end
def test_plus
assert_equal(0x40000000, 0x3fffffff+1)
assert_equal(0x4000000000000000, 0x3fffffffffffffff+1)
assert_equal(-0x40000001, (-0x40000000)+(-1))
assert_equal(-0x4000000000000001, (-0x4000000000000000)+(-1))
assert_equal(-0x80000000, (-0x40000000)+(-0x40000000))
end
def test_sub
assert_equal(0x40000000, 0x3fffffff-(-1))
assert_equal(0x4000000000000000, 0x3fffffffffffffff-(-1))
assert_equal(-0x40000001, (-0x40000000)-1)
assert_equal(-0x4000000000000001, (-0x4000000000000000)-1)
assert_equal(-0x80000000, (-0x40000000)-0x40000000)
end
def test_mult
assert_equal(0x40000000, 0x20000000*2)
assert_equal(0x4000000000000000, 0x2000000000000000*2)
assert_equal(-0x40000001, 33025*(-32513))
assert_equal(-0x4000000000000001, 1380655685*(-3340214413))
assert_equal(0x40000000, (-0x40000000)*(-1))
end
def test_div
assert_equal(2, 5/2)
assert_equal(0, 1/2)
assert_equal(-1, -1/2)
assert_equal(0, -(1/2))
assert_equal(-1, (-1)/2)
assert_equal(0, (-1)/(-2))
assert_equal(-1, 1/(-2))
assert_equal(1, -(1/(-2)))
assert_equal(0x3fffffff, 0xbffffffd/3)
assert_equal(0x40000000, 0xc0000000/3)
assert_equal(0x4000000000000000, 0xc000000000000000/3)
assert_equal(-0x40000001, 0xc0000003/(-3))
assert_equal(-0x4000000000000001, 0xc000000000000003/(-3))
assert_equal(0x40000000, (-0x40000000)/(-1), "[ruby-dev:31210]")
assert_equal(0x4000000000000000, (-0x4000000000000000)/(-1))
end
def test_mod
assert_equal(2, (-0x40000000) % 3)
assert_equal(0, (-0x40000000) % (-1))
end
def test_divmod
(-5).upto(5) {|a|
(-5).upto(5) {|b|
next if b == 0
q, r = a.divmod(b)
assert_equal(a, b*q+r)
assert(r.abs < b.abs)
assert(0 < b ? (0 <= r && r < b) : (b < r && r <= 0))
assert_equal(q, a/b)
assert_equal(q, a.div(b))
assert_equal(r, a%b)
assert_equal(r, a.modulo(b))
}
}
end
def test_not
assert_equal(-0x40000000, ~0x3fffffff)
assert_equal(0x3fffffff, ~-0x40000000)
end
def test_lshift
assert_equal(0x40000000, 0x20000000<<1)
assert_equal(-0x40000000, (-0x20000000)<<1)
assert_equal(-0x80000000, (-0x40000000)<<1)
end
def test_rshift
assert_equal(0x20000000, 0x40000000>>1)
assert_equal(-0x20000000, (-0x40000000)>>1)
assert_equal(-0x40000000, (-0x80000000)>>1)
end
def test_abs
assert_equal(0x40000000, (-0x40000000).abs)
assert_equal(0x4000000000000000, (-0x4000000000000000).abs)
end
def test_to_s
assert_equal("1010", 10.to_s(2))
assert_equal("a", 10.to_s(36))
assert_raise(ArgumentError) { 10.to_s(1) }
end
def test_plus2
assert_equal(2, 1 + 1)
assert_equal(4294967297, 1 + 2**32)
assert_equal(2.0, 1 + 1.0)
assert_raise(TypeError) { 1 + nil }
end
def test_minus
assert_equal(0, 1 - 1)
assert_equal(-4294967295, 1 - 2**32)
assert_equal(0.0, 1 - 1.0)
assert_raise(TypeError) { 1 - nil }
end
def test_mul
assert_equal(6, 2.send(:*, 3))
a = 2**30-1
assert_equal(1152921502459363329, a.send(:*, a))
assert_equal(6.0, 2 * 3.0)
assert_raise(TypeError) { 2 * nil }
end
def test_divide
assert_equal(2.0, 4.quo(2))
assert_equal(2.0, 4 / 2)
assert_equal(2.0, 4.div(2))
assert_equal(0.5**32, 1.quo(2**32))
assert_equal(0, 1 / (2**32))
assert_equal(0, 1.div(2**32))
assert_equal(0.5, 1.quo(2.0))
assert_equal(0.5, 1 / 2.0)
assert_equal(0, 1.div(2.0))
### rational changes the behavior of Fixnum#quo
#assert_raise(TypeError) { 2.quo(nil) }
assert_raise(TypeError, NoMethodError) { 2.quo(nil) }
assert_raise(TypeError) { 2 / nil }
assert_raise(TypeError) { 2.div(nil) }
assert_equal(0, 4.modulo(2))
assert_equal(1, 1.modulo(2**32))
assert_equal(1, 1.modulo(2.0))
assert_raise(TypeError) { 2.modulo(nil) }
assert_equal([2, 0], 4.divmod(2))
assert_equal([0, 1], 1.divmod(2**32))
assert_equal([0, 1], 1.divmod(2.0))
assert_raise(TypeError) { 2.divmod(nil) }
end
def test_pow2
assert_equal(65536, 2**16)
assert_equal(4294967296, 2**32)
assert_equal(0.5**16, 2**-16)
assert_equal(1, (-1)**4294967296)
assert_equal(-1, (-1)**4294967295)
assert_equal(4, 2**((2**32).coerce(2).first))
assert_equal(2, 4**0.5)
assert_equal(0, 0**0.5)
assert((0**-1.0).infinite?)
### rational changes the behavior of Fixnum#**
#assert_raise(TypeError) { 1 ** nil }
assert_raise(TypeError, NoMethodError) { 1 ** nil }
end
def test_cmp
assert(1 != nil)
assert_equal(0, 1 <=> 1)
assert_equal(-1, 1 <=> 4294967296)
assert_equal(0, 1 <=> 1.0)
assert_nil(1 <=> nil)
assert(1.send(:>, 0))
assert(!(1.send(:>, 1)))
assert(!(1.send(:>, 2)))
assert(!(1.send(:>, 4294967296)))
assert(1.send(:>, 0.0))
assert_raise(ArgumentError) { 1.send(:>, nil) }
assert(1.send(:>=, 0))
assert(1.send(:>=, 1))
assert(!(1.send(:>=, 2)))
assert(!(1.send(:>=, 4294967296)))
assert(1.send(:>=, 0.0))
assert_raise(ArgumentError) { 1.send(:>=, nil) }
assert(!(1.send(:<, 0)))
assert(!(1.send(:<, 1)))
assert(1.send(:<, 2))
assert(1.send(:<, 4294967296))
assert(!(1.send(:<, 0.0)))
assert_raise(ArgumentError) { 1.send(:<, nil) }
assert(!(1.send(:<=, 0)))
assert(1.send(:<=, 1))
assert(1.send(:<=, 2))
assert(1.send(:<=, 4294967296))
assert(!(1.send(:<=, 0.0)))
assert_raise(ArgumentError) { 1.send(:<=, nil) }
end
end
|
