var app = require('../app');

var supertest = require('supertest');

var request = supertest(app);

var should = require('should');

describe('test/app.test.js', function () {

it('should return 55 when n is 10', function (done) {

request.get('/fib')

.query({n: 10})

.end(function (err, res) {

res.text.should.equal('55');

done(err);

});

});

var testFib = function (n, expect, done) {

request.get('/fib')

.query({n: n})

.end(function (err, res) {

res.text.should.equal(expect);

done(err);

});

};

it('should return 0 when n === 0', function (done) {

testFib(0, '0', done);

});

it('should equal 1 when n === 1', function (done) {

testFib(1, '1', done);

});

it('should equal 55 when n === 10', function (done) {

testFib(10, '55', done);

});

it('should throw when n > 10', function (done) {

testFib(11, 'n should <= 10', done);

});

it('should throw when n < 0', function (done) {

testFib(-1, 'n should >= 0', done);

});

it('should throw when n isnt Number', function (done) {

testFib('good', 'n should be a Number', done);

});

it('should status 500 when error', function (done) {

request.get('/fib')

.query({n: 100})

.end(function (err, res) {

res.status.should.equal(500);

done(err);

});

});

});