-
-
Notifications
You must be signed in to change notification settings - Fork 52
/
mlhs_node_spec.rb
74 lines (57 loc) · 1.7 KB
/
mlhs_node_spec.rb
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
# frozen_string_literal: true
RSpec.describe RuboCop::AST::MlhsNode do
let(:mlhs_node) { parse_source(source).ast.node_parts[0] }
describe '.new' do
context 'with a `masgn` node' do
let(:source) { 'x, y = z' }
it { expect(mlhs_node).to be_a(described_class) }
end
end
describe '#assignments' do
include AST::Sexp
subject { mlhs_node.assignments }
context 'with variables' do
let(:source) { 'x, y = z' }
it { is_expected.to eq([s(:lvasgn, :x), s(:lvasgn, :y)]) }
end
context 'with a splat' do
let(:source) { 'x, *y = z' }
it { is_expected.to eq([s(:lvasgn, :x), s(:lvasgn, :y)]) }
end
context 'with nested `mlhs` nodes' do
let(:source) { 'a, (b, c) = z' }
it { is_expected.to eq([s(:lvasgn, :a), s(:lvasgn, :b), s(:lvasgn, :c)]) }
end
context 'with different variable types' do
let(:source) { 'a, @b, @@c, $d, E, *f = z' }
let(:expected_nodes) do
[
s(:lvasgn, :a),
s(:ivasgn, :@b),
s(:cvasgn, :@@c),
s(:gvasgn, :$d),
s(:casgn, nil, :E),
s(:lvasgn, :f)
]
end
it { is_expected.to eq(expected_nodes) }
end
context 'with assignment on RHS' do
let(:source) { 'x, y = 1, z += 2' }
it { is_expected.to eq([s(:lvasgn, :x), s(:lvasgn, :y)]) }
end
context 'with nested assignment on LHS' do
let(:source) { 'a, b[c+=1] = z' }
let(:expected_nodes) do
[
s(:lvasgn, :a),
s(:send,
s(:send, nil, :b), :[]=,
s(:op_asgn,
s(:lvasgn, :c), :+, s(:int, 1)))
]
end
it { is_expected.to eq(expected_nodes) }
end
end
end