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
|
# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::RelativePositioning::Range do
item_a = OpenStruct.new(relative_position: 100, object: :x, positioned?: true)
item_b = OpenStruct.new(relative_position: 200, object: :y, positioned?: true)
before do
allow(item_a).to receive(:lhs_neighbour) { nil }
allow(item_a).to receive(:rhs_neighbour) { item_b }
allow(item_b).to receive(:lhs_neighbour) { item_a }
allow(item_b).to receive(:rhs_neighbour) { nil }
end
describe 'RelativePositioning.range' do
it 'raises if lhs and rhs are nil' do
expect { Gitlab::RelativePositioning.range(nil, nil) }.to raise_error(ArgumentError)
end
it 'raises an error if there is no extent' do
expect { Gitlab::RelativePositioning.range(item_a, item_a) }.to raise_error(ArgumentError)
end
it 'constructs a closed range when both termini are provided' do
range = Gitlab::RelativePositioning.range(item_a, item_b)
expect(range).to be_a_kind_of(Gitlab::RelativePositioning::Range)
expect(range).to be_a_kind_of(Gitlab::RelativePositioning::ClosedRange)
end
it 'constructs a starting-from range when only the LHS is provided' do
range = Gitlab::RelativePositioning.range(item_a, nil)
expect(range).to be_a_kind_of(Gitlab::RelativePositioning::Range)
expect(range).to be_a_kind_of(Gitlab::RelativePositioning::StartingFrom)
end
it 'constructs an ending-at range when only the RHS is provided' do
range = Gitlab::RelativePositioning.range(nil, item_b)
expect(range).to be_a_kind_of(Gitlab::RelativePositioning::Range)
expect(range).to be_a_kind_of(Gitlab::RelativePositioning::EndingAt)
end
end
it 'infers neighbours correctly' do
starting_at_a = Gitlab::RelativePositioning.range(item_a, nil)
ending_at_b = Gitlab::RelativePositioning.range(nil, item_b)
expect(starting_at_a).to eq(ending_at_b)
end
describe '#open_on_left?' do
where(:lhs, :rhs, :expected_result) do
[
[item_a, item_b, false],
[item_a, nil, false],
[nil, item_b, false],
[item_b, nil, false],
[nil, item_a, true]
]
end
with_them do
it 'is true if there is no LHS terminus' do
range = Gitlab::RelativePositioning.range(lhs, rhs)
expect(range.open_on_left?).to be(expected_result)
end
end
end
describe '#open_on_right?' do
where(:lhs, :rhs, :expected_result) do
[
[item_a, item_b, false],
[item_a, nil, false],
[nil, item_b, false],
[item_b, nil, true],
[nil, item_a, false]
]
end
with_them do
it 'is true if there is no RHS terminus' do
range = Gitlab::RelativePositioning.range(lhs, rhs)
expect(range.open_on_right?).to be(expected_result)
end
end
end
describe '#cover?' do
item_c = OpenStruct.new(relative_position: 150, object: :z, positioned?: true)
item_d = OpenStruct.new(relative_position: 050, object: :w, positioned?: true)
item_e = OpenStruct.new(relative_position: 250, object: :r, positioned?: true)
item_f = OpenStruct.new(positioned?: false)
item_ax = OpenStruct.new(relative_position: 100, object: :not_x, positioned?: true)
item_bx = OpenStruct.new(relative_position: 200, object: :not_y, positioned?: true)
where(:lhs, :rhs, :item, :expected_result) do
[
[item_a, item_b, item_a, true],
[item_a, item_b, item_b, true],
[item_a, item_b, item_c, true],
[item_a, item_b, item_d, false],
[item_a, item_b, item_e, false],
[item_a, item_b, item_ax, false],
[item_a, item_b, item_bx, false],
[item_a, item_b, item_f, false],
[item_a, item_b, nil, false],
[nil, item_b, item_a, true],
[nil, item_b, item_b, true],
[nil, item_b, item_c, true],
[nil, item_b, item_d, false],
[nil, item_b, item_e, false],
[nil, item_b, item_ax, false],
[nil, item_b, item_bx, false],
[nil, item_b, item_f, false],
[nil, item_b, nil, false],
[item_a, nil, item_a, true],
[item_a, nil, item_b, true],
[item_a, nil, item_c, true],
[item_a, nil, item_d, false],
[item_a, nil, item_e, false],
[item_a, nil, item_ax, false],
[item_a, nil, item_bx, false],
[item_a, nil, item_f, false],
[item_a, nil, nil, false],
[nil, item_a, item_a, true],
[nil, item_a, item_b, false],
[nil, item_a, item_c, false],
[nil, item_a, item_d, true],
[nil, item_a, item_e, false],
[nil, item_a, item_ax, false],
[nil, item_a, item_bx, false],
[nil, item_a, item_f, false],
[nil, item_a, nil, false],
[item_b, nil, item_a, false],
[item_b, nil, item_b, true],
[item_b, nil, item_c, false],
[item_b, nil, item_d, false],
[item_b, nil, item_e, true],
[item_b, nil, item_ax, false],
[item_b, nil, item_bx, false],
[item_b, nil, item_f, false],
[item_b, nil, nil, false]
]
end
with_them do
it 'is true when the object is within the bounds of the range' do
range = Gitlab::RelativePositioning.range(lhs, rhs)
expect(range.cover?(item)).to be(expected_result)
end
end
end
end
|