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# frozen_string_literal: true
RSpec.describe Faraday::Response::Json, type: :response do
let(:options) { {} }
let(:headers) { {} }
let(:middleware) do
described_class.new(lambda { |env|
Faraday::Response.new(env)
}, **options)
end
def process(body, content_type = 'application/json', options = {})
env = {
body: body, request: options,
request_headers: Faraday::Utils::Headers.new,
response_headers: Faraday::Utils::Headers.new(headers)
}
env[:response_headers]['content-type'] = content_type if content_type
yield(env) if block_given?
middleware.call(Faraday::Env.from(env))
end
context 'no type matching' do
it "doesn't change nil body" do
expect(process(nil).body).to be_nil
end
it 'nullifies empty body' do
expect(process('').body).to be_nil
end
it 'parses json body' do
response = process('{"a":1}')
expect(response.body).to eq('a' => 1)
expect(response.env[:raw_body]).to be_nil
end
end
context 'with preserving raw' do
let(:options) { { preserve_raw: true } }
it 'parses json body' do
response = process('{"a":1}')
expect(response.body).to eq('a' => 1)
expect(response.env[:raw_body]).to eq('{"a":1}')
end
end
context 'with default regexp type matching' do
it 'parses json body of correct type' do
response = process('{"a":1}', 'application/x-json')
expect(response.body).to eq('a' => 1)
end
it 'ignores json body of incorrect type' do
response = process('{"a":1}', 'text/json-xml')
expect(response.body).to eq('{"a":1}')
end
end
context 'with array type matching' do
let(:options) { { content_type: %w[a/b c/d] } }
it 'parses json body of correct type' do
expect(process('{"a":1}', 'a/b').body).to be_a(Hash)
expect(process('{"a":1}', 'c/d').body).to be_a(Hash)
end
it 'ignores json body of incorrect type' do
expect(process('{"a":1}', 'a/d').body).not_to be_a(Hash)
end
end
it 'chokes on invalid json' do
expect { process('{!') }.to raise_error(Faraday::ParsingError)
end
it 'includes the response on the ParsingError instance' do
process('{') { |env| env[:response] = Faraday::Response.new }
raise 'Parsing should have failed.'
rescue Faraday::ParsingError => e
expect(e.response).to be_a(Faraday::Response)
end
context 'HEAD responses' do
it "nullifies the body if it's only one space" do
response = process(' ')
expect(response.body).to be_nil
end
it "nullifies the body if it's two spaces" do
response = process(' ')
expect(response.body).to be_nil
end
end
context 'JSON options' do
let(:body) { '{"a": 1}' }
let(:result) { { a: 1 } }
let(:options) do
{
parser_options: {
symbolize_names: true
}
}
end
it 'passes relevant options to JSON parse' do
expect(::JSON).to receive(:parse)
.with(body, options[:parser_options])
.and_return(result)
response = process(body)
expect(response.body).to eq(result)
end
end
context 'with decoder' do
let(:decoder) do
double('Decoder').tap do |e|
allow(e).to receive(:load) { |s, opts| JSON.parse(s, opts) }
end
end
let(:body) { '{"a": 1}' }
let(:result) { { a: 1 } }
context 'when decoder is passed as object' do
let(:options) do
{
parser_options: {
decoder: decoder,
option: :option_value,
symbolize_names: true
}
}
end
it 'passes relevant options to specified decoder\'s load method' do
expect(decoder).to receive(:load)
.with(body, { option: :option_value, symbolize_names: true })
.and_return(result)
response = process(body)
expect(response.body).to eq(result)
end
end
context 'when decoder is passed as an object-method pair' do
let(:options) do
{
parser_options: {
decoder: [decoder, :load],
option: :option_value,
symbolize_names: true
}
}
end
it 'passes relevant options to specified decoder\'s method' do
expect(decoder).to receive(:load)
.with(body, { option: :option_value, symbolize_names: true })
.and_return(result)
response = process(body)
expect(response.body).to eq(result)
end
end
context 'when decoder is not passed' do
let(:options) do
{
parser_options: {
symbolize_names: true
}
}
end
it 'passes relevant options to JSON parse' do
expect(JSON).to receive(:parse)
.with(body, { symbolize_names: true })
.and_return(result)
response = process(body)
expect(response.body).to eq(result)
end
it 'passes relevant options to JSON parse even when nil responds to :load' do
original_allow_message_expectations_on_nil = RSpec::Mocks.configuration.allow_message_expectations_on_nil
RSpec::Mocks.configuration.allow_message_expectations_on_nil = true
allow(nil).to receive(:respond_to?)
.with(:load)
.and_return(true)
expect(JSON).to receive(:parse)
.with(body, { symbolize_names: true })
.and_return(result)
response = process(body)
expect(response.body).to eq(result)
ensure
RSpec::Mocks.configuration.allow_message_expectations_on_nil = original_allow_message_expectations_on_nil
end
end
end
end
|
