68 lines
1.5 KiB
JavaScript
68 lines
1.5 KiB
JavaScript
'use strict'
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const { loadTesters } = require('../../services')
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/**
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* Load a collection of ServiceTester objects and register them with Mocha.
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*/
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class Runner {
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/**
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* Function to invoke before each test. This is a stub which can be
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* overridden on instances.
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*/
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beforeEach() {}
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/**
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* Prepare the runner by loading up all the ServiceTester objects.
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*/
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prepare() {
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this.testers = loadTesters()
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this.testers.forEach(tester => {
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tester.beforeEach = () => {
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this.beforeEach()
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}
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})
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}
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_testersForService(service) {
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return this.testers.filter(t => t.id.toLowerCase().startsWith(service))
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}
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/**
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* Limit the test run to the specified services.
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*
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* @param services An array of service id prefixes to run
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*/
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only(services) {
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const normalizedServices = new Set(services.map(v => v.toLowerCase()))
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const missingServices = []
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normalizedServices.forEach(service => {
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const testers = this._testersForService(service)
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if (testers.length === 0) {
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missingServices.push(service)
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}
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testers.forEach(tester => {
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tester.only()
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})
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})
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// Throw at the end, to provide a better error message.
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if (missingServices.length > 0) {
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throw Error('Unknown services: ' + missingServices.join(', '))
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}
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}
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/**
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* Register the tests with Mocha.
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*/
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toss() {
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this.testers.forEach(tester => {
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tester.toss()
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})
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}
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}
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module.exports = Runner
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