| 1 | const expect = require('chai').expect
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| 2 | const nock = require('nock')
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| 3 |
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| 4 | describe('middleware', () => {
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| 5 | const Copacetic = require('../')
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| 6 | const Middleware = require('../').Middleware
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| 7 |
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| 8 | const nockIt = () => {
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| 9 | nock('http://one-example.com')
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| 10 | .get('/')
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| 11 | .reply(200)
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| 12 | nock('http://two-example.com')
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| 13 | .get('/')
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| 14 | .reply(400)
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| 15 | }
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| 16 |
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| 17 | const res = { json: stuff => stuff, sendStatus: stuff => stuff }
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| 18 |
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| 19 | describe('when there is an interval', () => {
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| 20 | it('it should poll a set of dependencies', () => {
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| 21 | nockIt()
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| 22 |
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| 23 | const copacetic = Copacetic('test-service')
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| 24 | .registerDependency({
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| 25 | name: 'test-1',
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| 26 | url: 'http://one-example.com'
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| 27 | })
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| 28 | .registerDependency({
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| 29 | name: 'test-2',
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| 30 | url: 'http://two-example.com'
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| 31 | })
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| 32 |
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| 33 | const middleware = Middleware({
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| 34 | copacetic,
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| 35 | interval: '0.1 seconds',
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| 36 | dependencies: [{ name: 'test-1' }]
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| 37 | })
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| 38 |
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| 39 | copacetic.on('health', (info) => {
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| 40 | expect(middleware(null, res)).to.deep.equal({
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| 41 | name: 'test-service',
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| 42 | healthy: true,
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| 43 | dependencies: [
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| 44 | {
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| 45 | name: 'test-1',
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| 46 | healthy: true,
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| 47 | level: 'SOFT',
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| 48 | lastChecked: info[0].lastChecked
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| 49 | },
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| 50 | {
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| 51 | name: 'test-2',
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| 52 | healthy: true,
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| 53 | level: 'SOFT',
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| 54 | lastChecked: undefined
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| 55 | }
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| 56 | ]
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| 57 | })
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| 58 | })
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| 59 |
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| 60 | copacetic.stop()
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| 61 | })
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| 62 |
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| 63 | it('it should poll all dependencies', () => {
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| 64 | nockIt()
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| 65 |
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| 66 | const copacetic = Copacetic('test-service')
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| 67 | .registerDependency({
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| 68 | name: 'test-1',
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| 69 | url: 'http://one-example.com'
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| 70 | })
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| 71 | .registerDependency({
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| 72 | name: 'test-2',
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| 73 | url: 'http://two-example.com'
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| 74 | })
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| 75 |
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| 76 | const middleware = Middleware({
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| 77 | copacetic,
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| 78 | interval: '0.1 seconds'
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| 79 | })
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| 80 |
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| 81 | copacetic.on('health', (info) => {
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| 82 | expect(middleware(null, res)).to.deep.equal({
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| 83 | name: 'test-service',
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| 84 | healthy: true,
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| 85 | dependencies: [
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| 86 | {
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| 87 | name: 'test-1',
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| 88 | healthy: true,
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| 89 | level: 'SOFT',
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| 90 | lastChecked: info[0].lastChecked
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| 91 | },
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| 92 | {
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| 93 | name: 'test-2',
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| 94 | healthy: false,
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| 95 | level: 'SOFT',
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| 96 | lastChecked: info[1].lastChecked
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| 97 | }
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| 98 | ]
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| 99 | })
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| 100 | })
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| 101 |
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| 102 | copacetic.stop()
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| 103 | })
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| 104 |
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| 105 | it('should return a function', () => {
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| 106 | expect(Middleware({ copacetic: Copacetic() })).to.be.a('function')
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| 107 | })
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| 108 | })
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| 109 |
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| 110 | describe('when there is no interval', () => {
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| 111 | const copacetic = Copacetic('test-service')
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| 112 | .registerDependency({
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| 113 | name: 'test-1',
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| 114 | url: 'http://one-example.com'
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| 115 | })
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| 116 | .registerDependency({
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| 117 | name: 'test-2',
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| 118 | url: 'http://two-example.com'
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| 119 | })
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| 120 |
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| 121 | it('should return a function', () => {
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| 122 | expect(Middleware({ copacetic })).to.be.a('function')
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| 123 |
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| 124 | expect(Middleware({ copacetic })(null, res)).to.deep.equal({
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| 125 | name: 'test-service',
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| 126 | healthy: true,
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| 127 | dependencies: [
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| 128 | {
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| 129 | name: 'test-1',
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| 130 | healthy: true,
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| 131 | level: 'SOFT',
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| 132 | lastChecked: undefined
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| 133 | },
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| 134 | {
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| 135 | name: 'test-2',
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| 136 | healthy: true,
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| 137 | level: 'SOFT',
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| 138 | lastChecked: undefined
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| 139 | }
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| 140 | ]
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| 141 | })
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| 142 | })
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| 143 | })
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| 144 |
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| 145 | it('should return a status code', () => {
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| 146 | const copacetic = Copacetic('test-service')
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| 147 | .registerDependency({
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| 148 | name: 'test-1',
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| 149 | url: 'http://one-example.com'
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| 150 | })
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| 151 | .registerDependency({
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| 152 | name: 'test-2',
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| 153 | url: 'http://two-example.com'
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| 154 | })
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| 155 |
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| 156 | expect(Middleware({ copacetic, verbose: false })(null, res)).to.deep.equal(200)
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| 157 | })
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| 158 | })
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