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
|
require "delegate"
class SumTest < Test::Unit::TestCase
large_number = 100_000_000
small_number = 1e-9
until (large_number + small_number) == large_number
small_number /= 10
end
generic_test_data = [
[ [], 0, 0 ],
[ [], 0.0, 0.0 ],
[ [3], 0, 3 ],
[ [3], 0.0, 3.0 ],
[ [3, 5], 0, 8 ],
[ [3, 5, 7], 0, 15 ],
[ [3, Rational(5)], 0, Rational(8) ],
[ [3, 5, 7.0], 0, 15.0 ],
[ [3, Rational(5), 7.0], 0, 15.0 ],
[ [3, Rational(5), Complex(0, 1)], 0, Complex(Rational(8), 1) ],
[ [3, Rational(5), 7.0, Complex(0, 1)], 0, Complex(15.0, 1) ],
[ [3.5, 5], 0, 8.5 ],
[ [2, 8.5], 0, 10.5 ],
[ [Rational(1, 2), 1], 0, Rational(3, 2) ],
[ [Rational(1, 2), Rational(1, 3)], 0, Rational(5, 6) ],
[ [2.0, Complex(0, 3.0)], 0, Complex(2.0, 3.0) ],
[ [1, 2], 10, 13],
[ [large_number, *[small_number]*10], 0, large_number + small_number*10 ],
[ [Rational(large_number), *[small_number]*10], 0, large_number + small_number*10 ],
[ [small_number, Rational(large_number), *[small_number]*10], 0, large_number + small_number*11 ],
[ ["a", "b", "c"], "", "abc"],
[ [[1], [[2]], [3]], [], [1, [2], 3]],
].map { |recv, init, expected_result|
[ "#{recv.inspect}.sum(#{init.inspect}) == #{expected_result.inspect}", [recv, init, expected_result]]
}.to_h
sub_test_case("Array#sum") do
data(generic_test_data)
def test_generic_case(data)
ary, init, expected_result, conversion = data
actual_result = ary.sum(init, &conversion)
assert_equal({
value: expected_result,
class: expected_result.class
},
{
value: actual_result,
class: actual_result.class
})
end
def test_sum_with_block
ary = [1, 2, SimpleDelegator.new(3)]
yielded = []
result = ary.sum(0) {|x| yielded << x; 2*x }
assert_equal({ result: 12, yielded: ary },
{ result: result, yielded: yielded })
end
def test_skip_na_false
ary = [1, 2, nil, SimpleDelegator.new(3)]
assert_raise(TypeError) do
ary.sum(0, skip_na: false)
end
end
def test_skip_na_true
ary = [1, 2, nil, SimpleDelegator.new(3)]
result = ary.sum(0, skip_na: true)
assert_equal(6, result)
end
def test_skip_na_true_with_block
ary = [1, 2, nil, SimpleDelegator.new(3)]
result = ary.sum(0, skip_na: true) {|x| x || 10 }
assert_equal(16, result)
end
def test_type_error
assert_raise(TypeError) do
[Object.new].sum(0)
end
end
end
sub_test_case("Enumerable#sum") do
test_data = generic_test_data.map {|key, value|
[ key.sub(/\.sum/, ".each.sum"), value ]
}.to_h
data(test_data)
def test_generic_case(data)
ary, init, expected_result, conversion = data
actual_result = ary.each.sum(init, &conversion)
assert_equal({
value: expected_result,
class: expected_result.class
},
{
value: actual_result,
class: actual_result.class
})
end
def test_sum_with_block
ary = [1, 2, SimpleDelegator.new(3)]
yielded = []
result = ary.each.sum(0) {|x| yielded << x; 2*x }
assert_equal({ result: 12, yielded: ary },
{ result: result, yielded: yielded })
end
def test_skip_na_false
ary = [1, 2, nil, SimpleDelegator.new(3)]
assert_raise(TypeError) do
ary.each.sum(0, skip_na: false)
end
end
def test_skip_na_true
ary = [1, 2, nil, SimpleDelegator.new(3)]
result = ary.each.sum(0, skip_na: true)
assert_equal(6, result)
end
def test_type_error
assert_raise(TypeError) do
[Object.new].each.sum(0)
end
end
end
sub_test_case("Hash#sum") do
def test_skip_na_false
hash = {
a: 1,
b: 2,
c: nil,
d: 3
}
assert_raise(TypeError) do
hash.sum(0, skip_na: false, &:last)
end
end
def test_skip_na_true
hash = {
a: 1,
b: 2,
c: nil,
d: 3
}
result = hash.sum(0, skip_na: true, &:last)
assert_equal(6, result)
end
end
end
|
