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# frozen_string_literal: true
RSpec.describe FaradayMiddleware::ParseJson, type: :response do
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
it 'can opt out of preserving raw' do
response = process('{"a":1}', nil, preserve_raw: false)
expect(response.env[:raw_body]).to be_nil
end
end
context 'with regexp type matching' do
let(:options) { { content_type: /\bjson$/ } }
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
begin
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
end
context 'with mime type fix' do
let(:middleware) do
app = described_class::MimeTypeFix.new(lambda { |env|
Faraday::Response.new(env)
}, content_type: %r{^text/})
described_class.new(app, content_type: 'application/json')
end
it 'ignores completely incompatible type' do
response = process('{"a":1}', 'application/xml')
expect(response.body).to eq('{"a":1}')
end
it 'ignores compatible type with bad data' do
response = process('var a = 1', 'text/javascript')
expect(response.body).to eq('var a = 1')
expect(response['content-type']).to eq('text/javascript')
end
it 'corrects compatible type and data' do
response = process('{"a":1}', 'text/javascript')
expect(response.body).to be_a(Hash)
expect(response['content-type']).to eq('application/json')
end
it 'corrects compatible type even when data starts with whitespace' do
response = process(%( \r\n\t{"a":1}), 'text/javascript')
expect(response.body).to be_a(Hash)
expect(response['content-type']).to eq('application/json')
end
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
end
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