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
|
# frozen_string_literal: true
RSpec.describe Faraday::Request::Json do
let(:middleware) { described_class.new(->(env) { Faraday::Response.new(env) }) }
def process(body, content_type = nil)
env = { body: body, request_headers: Faraday::Utils::Headers.new }
env[:request_headers]['content-type'] = content_type if content_type
middleware.call(Faraday::Env.from(env)).env
end
def result_body
result[:body]
end
def result_type
result[:request_headers]['content-type']
end
context 'no body' do
let(:result) { process(nil) }
it "doesn't change body" do
expect(result_body).to be_nil
end
it "doesn't add content type" do
expect(result_type).to be_nil
end
end
context 'empty body' do
let(:result) { process('') }
it "doesn't change body" do
expect(result_body).to be_empty
end
it "doesn't add content type" do
expect(result_type).to be_nil
end
end
context 'string body' do
let(:result) { process('{"a":1}') }
it "doesn't change body" do
expect(result_body).to eq('{"a":1}')
end
it 'adds content type' do
expect(result_type).to eq('application/json')
end
end
context 'object body' do
let(:result) { process(a: 1) }
it 'encodes body' do
expect(result_body).to eq('{"a":1}')
end
it 'adds content type' do
expect(result_type).to eq('application/json')
end
end
context 'empty object body' do
let(:result) { process({}) }
it 'encodes body' do
expect(result_body).to eq('{}')
end
end
context 'true body' do
let(:result) { process(true) }
it 'encodes body' do
expect(result_body).to eq('true')
end
it 'adds content type' do
expect(result_type).to eq('application/json')
end
end
context 'false body' do
let(:result) { process(false) }
it 'encodes body' do
expect(result_body).to eq('false')
end
it 'adds content type' do
expect(result_type).to eq('application/json')
end
end
context 'object body with json type' do
let(:result) { process({ a: 1 }, 'application/json; charset=utf-8') }
it 'encodes body' do
expect(result_body).to eq('{"a":1}')
end
it "doesn't change content type" do
expect(result_type).to eq('application/json; charset=utf-8')
end
end
context 'object body with vendor json type' do
let(:result) { process({ a: 1 }, 'application/vnd.myapp.v1+json; charset=utf-8') }
it 'encodes body' do
expect(result_body).to eq('{"a":1}')
end
it "doesn't change content type" do
expect(result_type).to eq('application/vnd.myapp.v1+json; charset=utf-8')
end
end
context 'object body with incompatible type' do
let(:result) { process({ a: 1 }, 'application/xml; charset=utf-8') }
it "doesn't change body" do
expect(result_body).to eq(a: 1)
end
it "doesn't change content type" do
expect(result_type).to eq('application/xml; charset=utf-8')
end
end
context 'with encoder' do
let(:encoder) do
double('Encoder').tap do |e|
allow(e).to receive(:dump) { |s, opts| JSON.generate(s, opts) }
end
end
let(:result) { process(a: 1) }
context 'when encoder is passed as object' do
let(:middleware) { described_class.new(->(env) { Faraday::Response.new(env) }, { encoder: encoder }) }
it 'calls specified JSON encoder\'s dump method' do
expect(encoder).to receive(:dump).with({ a: 1 })
result
end
it 'encodes body' do
expect(result_body).to eq('{"a":1}')
end
it 'adds content type' do
expect(result_type).to eq('application/json')
end
end
context 'when encoder is passed as an object-method pair' do
let(:middleware) { described_class.new(->(env) { Faraday::Response.new(env) }, { encoder: [encoder, :dump] }) }
it 'calls specified JSON encoder' do
expect(encoder).to receive(:dump).with({ a: 1 })
result
end
it 'encodes body' do
expect(result_body).to eq('{"a":1}')
end
it 'adds content type' do
expect(result_type).to eq('application/json')
end
end
context 'when encoder is not passed' do
let(:middleware) { described_class.new(->(env) { Faraday::Response.new(env) }) }
it 'calls JSON.generate' do
expect(JSON).to receive(:generate).with({ a: 1 })
result
end
it 'encodes body' do
expect(result_body).to eq('{"a":1}')
end
it 'adds content type' do
expect(result_type).to eq('application/json')
end
end
end
end
|
