| 1 | const expect = require('chai').expect
|
| 2 | const nock = require('nock')
|
| 3 |
|
| 4 | describe('Dependency', () => {
|
| 5 | let Dependency
|
| 6 | let dependency
|
| 7 |
|
| 8 | before(() => {
|
| 9 | const CodependencyMock = require('./mocks/codependency')
|
| 10 | const Injector = require('../lib/util/injector')
|
| 11 |
|
| 12 | Dependency = require('../lib/dependency')(
|
| 13 | Injector(CodependencyMock({
|
| 14 | 'node-fetch': require('node-fetch')
|
| 15 | }))
|
| 16 | )
|
| 17 | })
|
| 18 |
|
| 19 | beforeEach(() => {
|
| 20 | dependency = Dependency({ name: 'test-dependency', url: 'http://example.com' })
|
| 21 | })
|
| 22 |
|
| 23 | it('should export a function', () => {
|
| 24 | expect(Dependency).to.be.a('function')
|
| 25 | })
|
| 26 |
|
| 27 | describe('onHealthy()', () => {
|
| 28 | it('should mark a dependency as healthy', () => {
|
| 29 | dependency.onHealthy()
|
| 30 |
|
| 31 | expect(dependency.healthy).to.equal(true)
|
| 32 | })
|
| 33 | })
|
| 34 |
|
| 35 | describe('onUnhealthy()', () => {
|
| 36 | it('should mark a dependency as unhealthy', () => {
|
| 37 | dependency.onUnhealthy()
|
| 38 |
|
| 39 | expect(dependency.healthy).to.equal(false)
|
| 40 | })
|
| 41 | })
|
| 42 |
|
| 43 | describe('healthSummary', () => {
|
| 44 | it('should return health summary of the dependency', () => {
|
| 45 | dependency.onHealthy()
|
| 46 |
|
| 47 | expect({
|
| 48 | name: 'test-dependency',
|
| 49 | healthy: true,
|
| 50 | level: 'SOFT',
|
| 51 | lastChecked: dependency.lastChecked
|
| 52 | }).to.deep.equal(dependency.healthSummary)
|
| 53 | })
|
| 54 | })
|
| 55 |
|
| 56 | describe('check()', () => {
|
| 57 | it('should return a promise', () => {
|
| 58 | nock('http://example.com')
|
| 59 | .get('/')
|
| 60 | .reply(200)
|
| 61 |
|
| 62 | expect(dependency.check().then).to.be.a('function')
|
| 63 | })
|
| 64 |
|
| 65 | it('should use a HttpStrategy to check a dependency\'s health', () => {
|
| 66 | nock('http://example.com')
|
| 67 | .get('/')
|
| 68 | .reply(200)
|
| 69 |
|
| 70 | dependency
|
| 71 | .check()
|
| 72 | .catch((r) => {
|
| 73 | expect({
|
| 74 | name: 'test-dependency',
|
| 75 | healthy: true,
|
| 76 | dependency: 'SOFT',
|
| 77 | lastChecked: r.lastChecked
|
| 78 | }).to.deep.equal(r)
|
| 79 | })
|
| 80 |
|
| 81 | nock('http://example.com')
|
| 82 | .get('/')
|
| 83 | .reply(400)
|
| 84 |
|
| 85 | dependency
|
| 86 | .check()
|
| 87 | .catch((r) => {
|
| 88 | expect({
|
| 89 | name: 'test-dependency',
|
| 90 | healthy: false,
|
| 91 | dependency: 'SOFT',
|
| 92 | lastChecked: r.lastChecked
|
| 93 | }).to.deep.equal(r)
|
| 94 | })
|
| 95 | })
|
| 96 |
|
| 97 | it('should check a dependency\'s health if retries > 1', () => {
|
| 98 | nock('http://example.com')
|
| 99 | .get('/')
|
| 100 | .reply(400)
|
| 101 |
|
| 102 | dependency
|
| 103 | .check(2)
|
| 104 | .catch((r) => {
|
| 105 | expect({
|
| 106 | name: 'test-dependency',
|
| 107 | healthy: true,
|
| 108 | dependency: 'SOFT',
|
| 109 | lastChecked: r.lastChecked
|
| 110 | }).to.deep.equal(r)
|
| 111 | })
|
| 112 | })
|
| 113 | })
|
| 114 | })
|