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
|
# frozen_string_literal: true
require "abstract_unit"
require "active_support/core_ext/array"
class GroupingTest < ActiveSupport::TestCase
def setup
# In Ruby < 2.4, test we avoid Integer#/ (redefined by mathn)
Fixnum.send :private, :/ unless 0.class == Integer
end
def teardown
Fixnum.send :public, :/ unless 0.class == Integer
end
def test_in_groups_of_with_perfect_fit
groups = []
("a".."i").to_a.in_groups_of(3) do |group|
groups << group
end
assert_equal [%w(a b c), %w(d e f), %w(g h i)], groups
assert_equal [%w(a b c), %w(d e f), %w(g h i)], ("a".."i").to_a.in_groups_of(3)
end
def test_in_groups_of_with_padding
groups = []
("a".."g").to_a.in_groups_of(3) do |group|
groups << group
end
assert_equal [%w(a b c), %w(d e f), ["g", nil, nil]], groups
end
def test_in_groups_of_pads_with_specified_values
groups = []
("a".."g").to_a.in_groups_of(3, "foo") do |group|
groups << group
end
assert_equal [%w(a b c), %w(d e f), %w(g foo foo)], groups
end
def test_in_groups_of_without_padding
groups = []
("a".."g").to_a.in_groups_of(3, false) do |group|
groups << group
end
assert_equal [%w(a b c), %w(d e f), %w(g)], groups
end
def test_in_groups_returned_array_size
array = (1..7).to_a
1.upto(array.size + 1) do |number|
assert_equal number, array.in_groups(number).size
end
end
def test_in_groups_with_empty_array
assert_equal [[], [], []], [].in_groups(3)
end
def test_in_groups_with_block
array = (1..9).to_a
groups = []
array.in_groups(3) do |group|
groups << group
end
assert_equal array.in_groups(3), groups
end
def test_in_groups_with_perfect_fit
assert_equal [[1, 2, 3], [4, 5, 6], [7, 8, 9]],
(1..9).to_a.in_groups(3)
end
def test_in_groups_with_padding
array = (1..7).to_a
assert_equal [[1, 2, 3], [4, 5, nil], [6, 7, nil]],
array.in_groups(3)
assert_equal [[1, 2, 3], [4, 5, "foo"], [6, 7, "foo"]],
array.in_groups(3, "foo")
end
def test_in_groups_without_padding
assert_equal [[1, 2, 3], [4, 5], [6, 7]],
(1..7).to_a.in_groups(3, false)
end
def test_in_groups_invalid_argument
assert_raises(ArgumentError) { [].in_groups_of(0) }
assert_raises(ArgumentError) { [].in_groups_of(-1) }
assert_raises(ArgumentError) { [].in_groups_of(nil) }
end
end
class SplitTest < ActiveSupport::TestCase
def test_split_with_empty_array
assert_equal [[]], [].split(0)
end
def test_split_with_argument
a = [1, 2, 3, 4, 5]
assert_equal [[1, 2], [4, 5]], a.split(3)
assert_equal [[1, 2, 3, 4, 5]], a.split(0)
assert_equal [1, 2, 3, 4, 5], a
end
def test_split_with_block
a = (1..10).to_a
assert_equal [[1, 2], [4, 5], [7, 8], [10]], a.split { |i| i % 3 == 0 }
assert_equal [1, 2, 3, 4, 5, 6, 7, 8, 9, 10], a
end
def test_split_with_edge_values
a = [1, 2, 3, 4, 5]
assert_equal [[], [2, 3, 4, 5]], a.split(1)
assert_equal [[1, 2, 3, 4], []], a.split(5)
assert_equal [[], [2, 3, 4], []], a.split { |i| i == 1 || i == 5 }
assert_equal [1, 2, 3, 4, 5], a
end
def test_split_with_repeated_values
a = [1, 2, 3, 5, 5, 3, 4, 6, 2, 1, 3]
assert_equal [[1, 2], [5, 5], [4, 6, 2, 1], []], a.split(3)
assert_equal [[1, 2, 3], [], [3, 4, 6, 2, 1, 3]], a.split(5)
assert_equal [[1, 2], [], [], [], [4, 6, 2, 1], []], a.split { |i| i == 3 || i == 5 }
assert_equal [1, 2, 3, 5, 5, 3, 4, 6, 2, 1, 3], a
end
end
|
