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
|
# -*- coding: us-ascii -*-
# frozen_string_literal: false
require 'test/unit'
require 'timeout'
class TestData < Test::Unit::TestCase
def test_define
klass = Data.define(:foo, :bar)
assert_kind_of(Class, klass)
assert_equal(%i[foo bar], klass.members)
assert_raise(NoMethodError) { Data.new(:foo) }
assert_raise(TypeError) { Data.define(0) }
# Because some code is shared with Struct, check we don't share unnecessary functionality
assert_raise(TypeError) { Data.define(:foo, keyword_init: true) }
assert_not_respond_to(Data.define, :define, "Cannot define from defined Data class")
end
def test_define_edge_cases
# non-ascii
klass = Data.define(:"r\u{e9}sum\u{e9}")
o = klass.new(1)
assert_equal(1, o.send(:"r\u{e9}sum\u{e9}"))
# junk string
klass = Data.define(:"a\000")
o = klass.new(1)
assert_equal(1, o.send(:"a\000"))
# special characters in attribute names
klass = Data.define(:a, :b?)
x = Object.new
o = klass.new("test", x)
assert_same(x, o.b?)
klass = Data.define(:a, :b!)
x = Object.new
o = klass.new("test", x)
assert_same(x, o.b!)
assert_raise(ArgumentError) { Data.define(:x=) }
assert_raise(ArgumentError, /duplicate member/) { Data.define(:x, :x) }
end
def test_define_with_block
klass = Data.define(:a, :b) do
def c
a + b
end
end
assert_equal(3, klass.new(1, 2).c)
end
def test_initialize
klass = Data.define(:foo, :bar)
# Regular
test = klass.new(1, 2)
assert_equal(1, test.foo)
assert_equal(2, test.bar)
assert_equal(test, klass.new(1, 2))
assert_predicate(test, :frozen?)
# Keywords
test_kw = klass.new(foo: 1, bar: 2)
assert_equal(1, test_kw.foo)
assert_equal(2, test_kw.bar)
assert_equal(test_kw, klass.new(foo: 1, bar: 2))
assert_equal(test_kw, test)
# Wrong protocol
assert_raise(ArgumentError) { klass.new(1) }
assert_raise(ArgumentError) { klass.new(1, 2, 3) }
assert_raise(ArgumentError) { klass.new(foo: 1) }
assert_raise(ArgumentError) { klass.new(foo: 1, bar: 2, baz: 3) }
# Could be converted to foo: 1, bar: 2, but too smart is confusing
assert_raise(ArgumentError) { klass.new(1, bar: 2) }
end
def test_initialize_redefine
klass = Data.define(:foo, :bar) do
attr_reader :passed
def initialize(*args, **kwargs)
@passed = [args, kwargs]
super(foo: 1, bar: 2) # so we can experiment with passing wrong numbers of args
end
end
assert_equal([[], {foo: 1, bar: 2}], klass.new(foo: 1, bar: 2).passed)
# Positional arguments are converted to keyword ones
assert_equal([[], {foo: 1, bar: 2}], klass.new(1, 2).passed)
# Missing arguments can be fixed in initialize
assert_equal([[], {foo: 1}], klass.new(foo: 1).passed)
# Extra keyword arguments can be dropped in initialize
assert_equal([[], {foo: 1, bar: 2, baz: 3}], klass.new(foo: 1, bar: 2, baz: 3).passed)
end
def test_instance_behavior
klass = Data.define(:foo, :bar)
test = klass.new(1, 2)
assert_equal(1, test.foo)
assert_equal(2, test.bar)
assert_equal(%i[foo bar], test.members)
assert_equal(1, test.public_send(:foo))
assert_equal(0, test.method(:foo).arity)
assert_equal([], test.method(:foo).parameters)
assert_equal({foo: 1, bar: 2}, test.to_h)
assert_equal({"foo"=>"1", "bar"=>"2"}, test.to_h { [_1.to_s, _2.to_s] })
assert_equal({foo: 1, bar: 2}, test.deconstruct_keys(nil))
assert_equal({foo: 1}, test.deconstruct_keys(%i[foo]))
assert_equal({foo: 1}, test.deconstruct_keys(%i[foo baz]))
assert_raise(TypeError) { test.deconstruct_keys(0) }
assert_kind_of(Integer, test.hash)
end
def test_inspect
klass = Data.define(:a)
o = klass.new(1)
assert_equal("#<data a=1>", o.inspect)
Object.const_set(:Foo, klass)
assert_equal("#<data Foo a=1>", o.inspect)
Object.instance_eval { remove_const(:Foo) }
klass = Data.define(:@a)
o = klass.new(1)
assert_equal("#<data :@a=1>", o.inspect)
end
def test_equal
klass1 = Data.define(:a)
klass2 = Data.define(:a)
o1 = klass1.new(1)
o2 = klass1.new(1)
o3 = klass2.new(1)
assert_equal(o1, o2)
assert_not_equal(o1, o3)
end
def test_eql
klass1 = Data.define(:a)
klass2 = Data.define(:a)
o1 = klass1.new(1)
o2 = klass1.new(1)
o3 = klass2.new(1)
assert_operator(o1, :eql?, o2)
assert_not_operator(o1, :eql?, o3)
end
def test_memberless
klass = Data.define
test = klass.new
assert_equal(klass.new, test)
assert_not_equal(Data.define.new, test)
assert_equal('#<data >', test.inspect)
assert_equal([], test.members)
assert_equal({}, test.to_h)
end
def test_dup
klass = Data.define(:foo, :bar)
test = klass.new(foo: 1, bar: 2)
assert_equal(klass.new(foo: 1, bar: 2), test.dup)
assert_predicate(test.dup, :frozen?)
end
end
|
