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
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
require 'cases/helper'
require 'models/contact'
require 'active_support/core_ext/object/instance_variables'
class Contact
include ActiveModel::Serializers::JSON
include ActiveModel::Validations
def attributes=(hash)
hash.each do |k, v|
instance_variable_set("@#{k}", v)
end
end
remove_method :attributes if method_defined?(:attributes)
def attributes
instance_values
end
end
class JsonSerializationTest < ActiveModel::TestCase
def setup
@contact = Contact.new
@contact.name = 'Konata Izumi'
@contact.age = 16
@contact.created_at = Time.utc(2006, 8, 1)
@contact.awesome = true
@contact.preferences = { 'shows' => 'anime' }
end
test "should not include root in json (class method)" do
json = @contact.to_json
assert_no_match %r{^\{"contact":\{}, json
assert_match %r{"name":"Konata Izumi"}, json
assert_match %r{"age":16}, json
assert json.include?(%("created_at":#{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}))
assert_match %r{"awesome":true}, json
assert_match %r{"preferences":\{"shows":"anime"\}}, json
end
test "should include root in json if include_root_in_json is true" do
begin
original_include_root_in_json = Contact.include_root_in_json
Contact.include_root_in_json = true
json = @contact.to_json
assert_match %r{^\{"contact":\{}, json
assert_match %r{"name":"Konata Izumi"}, json
assert_match %r{"age":16}, json
assert json.include?(%("created_at":#{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}))
assert_match %r{"awesome":true}, json
assert_match %r{"preferences":\{"shows":"anime"\}}, json
ensure
Contact.include_root_in_json = original_include_root_in_json
end
end
test "should include root in json (option) even if the default is set to false" do
json = @contact.to_json(root: true)
assert_match %r{^\{"contact":\{}, json
end
test "should not include root in json (option)" do
json = @contact.to_json(root: false)
assert_no_match %r{^\{"contact":\{}, json
end
test "should include custom root in json" do
json = @contact.to_json(root: 'json_contact')
assert_match %r{^\{"json_contact":\{}, json
assert_match %r{"name":"Konata Izumi"}, json
assert_match %r{"age":16}, json
assert json.include?(%("created_at":#{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}))
assert_match %r{"awesome":true}, json
assert_match %r{"preferences":\{"shows":"anime"\}}, json
end
test "should encode all encodable attributes" do
json = @contact.to_json
assert_match %r{"name":"Konata Izumi"}, json
assert_match %r{"age":16}, json
assert json.include?(%("created_at":#{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}))
assert_match %r{"awesome":true}, json
assert_match %r{"preferences":\{"shows":"anime"\}}, json
end
test "should allow attribute filtering with only" do
json = @contact.to_json(only: [:name, :age])
assert_match %r{"name":"Konata Izumi"}, json
assert_match %r{"age":16}, json
assert_no_match %r{"awesome":true}, json
assert !json.include?(%("created_at":#{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}))
assert_no_match %r{"preferences":\{"shows":"anime"\}}, json
end
test "should allow attribute filtering with except" do
json = @contact.to_json(except: [:name, :age])
assert_no_match %r{"name":"Konata Izumi"}, json
assert_no_match %r{"age":16}, json
assert_match %r{"awesome":true}, json
assert json.include?(%("created_at":#{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}))
assert_match %r{"preferences":\{"shows":"anime"\}}, json
end
test "methods are called on object" do
# Define methods on fixture.
def @contact.label; "Has cheezburger"; end
def @contact.favorite_quote; "Constraints are liberating"; end
# Single method.
assert_match %r{"label":"Has cheezburger"}, @contact.to_json(only: :name, methods: :label)
# Both methods.
methods_json = @contact.to_json(only: :name, methods: [:label, :favorite_quote])
assert_match %r{"label":"Has cheezburger"}, methods_json
assert_match %r{"favorite_quote":"Constraints are liberating"}, methods_json
end
test "should return Hash for errors" do
contact = Contact.new
contact.errors.add :name, "can't be blank"
contact.errors.add :name, "is too short (minimum is 2 characters)"
contact.errors.add :age, "must be 16 or over"
hash = {}
hash[:name] = ["can't be blank", "is too short (minimum is 2 characters)"]
hash[:age] = ["must be 16 or over"]
assert_equal hash.to_json, contact.errors.to_json
end
test "serializable_hash should not modify options passed in argument" do
options = { except: :name }
@contact.serializable_hash(options)
assert_nil options[:only]
assert_equal :name, options[:except]
end
test "as_json should return a hash if include_root_in_json is true" do
begin
original_include_root_in_json = Contact.include_root_in_json
Contact.include_root_in_json = true
json = @contact.as_json
assert_kind_of Hash, json
assert_kind_of Hash, json['contact']
%w(name age created_at awesome preferences).each do |field|
assert_equal @contact.send(field), json['contact'][field]
end
ensure
Contact.include_root_in_json = original_include_root_in_json
end
end
test "from_json should work without a root (class attribute)" do
json = @contact.to_json
result = Contact.new.from_json(json)
assert_equal result.name, @contact.name
assert_equal result.age, @contact.age
assert_equal Time.parse(result.created_at), @contact.created_at
assert_equal result.awesome, @contact.awesome
assert_equal result.preferences, @contact.preferences
end
test "from_json should work without a root (method parameter)" do
json = @contact.to_json
result = Contact.new.from_json(json, false)
assert_equal result.name, @contact.name
assert_equal result.age, @contact.age
assert_equal Time.parse(result.created_at), @contact.created_at
assert_equal result.awesome, @contact.awesome
assert_equal result.preferences, @contact.preferences
end
test "from_json should work with a root (method parameter)" do
json = @contact.to_json(root: :true)
result = Contact.new.from_json(json, true)
assert_equal result.name, @contact.name
assert_equal result.age, @contact.age
assert_equal Time.parse(result.created_at), @contact.created_at
assert_equal result.awesome, @contact.awesome
assert_equal result.preferences, @contact.preferences
end
test "custom as_json should be honored when generating json" do
def @contact.as_json(options); { name: name, created_at: created_at }; end
json = @contact.to_json
assert_match %r{"name":"Konata Izumi"}, json
assert_match %r{"created_at":#{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}}, json
assert_no_match %r{"awesome":}, json
assert_no_match %r{"preferences":}, json
end
test "custom as_json options should be extensible" do
def @contact.as_json(options = {}); super(options.merge(only: [:name])); end
json = @contact.to_json
assert_match %r{"name":"Konata Izumi"}, json
assert_no_match %r{"created_at":#{ActiveSupport::JSON.encode(Time.utc(2006, 8, 1))}}, json
assert_no_match %r{"awesome":}, json
assert_no_match %r{"preferences":}, json
end
end
|
