# frozen_string_literal: true # Requires Ruby with rspec and faraday gems. # rspec client_spec.rb require 'faraday' require 'json' # Example API client class Client def initialize(conn) @conn = conn end def sushi(jname, params: {}) res = @conn.get("/#{jname}", params) data = JSON.parse(res.body) data['name'] end end RSpec.describe Client do let(:stubs) { Faraday::Adapter::Test::Stubs.new } let(:conn) { Faraday.new { |b| b.adapter(:test, stubs) } } let(:client) { Client.new(conn) } it 'parses name' do stubs.get('/ebi') do |env| # optional: you can inspect the Faraday::Env expect(env.url.path).to eq('/ebi') [ 200, { 'Content-Type': 'application/javascript' }, '{"name": "shrimp"}' ] end # uncomment to trigger stubs.verify_stubbed_calls failure # stubs.get('/unused') { [404, {}, ''] } expect(client.sushi('ebi')).to eq('shrimp') stubs.verify_stubbed_calls end it 'handles 404' do stubs.get('/ebi') do [ 404, { 'Content-Type': 'application/javascript' }, '{}' ] end expect(client.sushi('ebi')).to be_nil stubs.verify_stubbed_calls end it 'handles exception' do stubs.get('/ebi') do raise Faraday::ConnectionFailed, nil end expect { client.sushi('ebi') }.to raise_error(Faraday::ConnectionFailed) stubs.verify_stubbed_calls end context 'When the test stub is run in strict_mode' do let(:stubs) { Faraday::Adapter::Test::Stubs.new(strict_mode: true) } it 'verifies the all parameter values are identical' do stubs.get('/ebi?abc=123') do [ 200, { 'Content-Type': 'application/javascript' }, '{"name": "shrimp"}' ] end # uncomment to raise Stubs::NotFound # expect(client.sushi('ebi', params: { abc: 123, foo: 'Kappa' })).to eq('shrimp') expect(client.sushi('ebi', params: { abc: 123 })).to eq('shrimp') stubs.verify_stubbed_calls end end end