// Configure Mocha, telling both it and chai to use BDD-style tests. mocha.setup("tdd"); var assert = chai.assert; let repository = { "200": { "offer-id": 200, "percentage": 15 }, "400": { "offer-id": 400, "percentage": 22 } }; function validateId(state) { if (typeof state.id !== 'string') { state.response = { "code": 400, "body": { "errors": ["The id you provided is invalid"] } }; } return state; } function findOfferById(state) { //precondition if (state.response) return state; if (!repository[state.id]) state.response = { "code": 404, "body": { "errors": ["The id you provided cannot be found"] } }; else state.response = { "code": 200, "body": repository[state.id] }; return state; } function json(state) { return JSON.stringify(state.response); } function getOfferById(requestId) { return run({ id: requestId }, [ validateId, findOfferById, json ]); } describe('functional pipeline (with flag) endpoint should', function() { it('return an offer 200', function() { assert.equal("{\"code\":200,\"body\":{\"offer-id\":200,\"percentage\":15}}", getOfferById("200")); }); it('return a validation error 400 when not found', function() { assert.equal("{\"code\":400,\"body\":{\"errors\":[\"The id you provided is invalid\"]}}", getOfferById(400)); }); it('return a not found 404', function() { assert.equal("{\"code\":404,\"body\":{\"errors\":[\"The id you provided cannot be found\"]}}", getOfferById("404")); }); }); // Run all our test suites. Only necessary in the browser. mocha.run();