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build/node_modules/domain-browser/test.js

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+/* eslint handle-callback-err:0, no-magic-numbers:0, no-unused-vars:0 */
+'use strict'
+
+// Import
+const events = require('events')
+const equal = require('assert-helpers').equal
+const joe = require('joe')
+const domain = require('./')
+
+// =====================================
+// Tests
+
+joe.describe('domain-browser', function (describe, it) {
+	it('should work on throws', function (done) {
+		const d = domain.create()
+		d.on('error', function (err) {
+			equal(err && err.message, 'a thrown error', 'error message')
+			done()
+		})
+		d.run(function () {
+			throw new Error('a thrown error')
+		})
+	})
+
+	it('should be able to add emitters', function (done) {
+		const d = domain.create()
+		const emitter = new events.EventEmitter()
+
+		d.add(emitter)
+		d.on('error', function (err) {
+			equal(err && err.message, 'an emitted error', 'error message')
+			done()
+		})
+
+		emitter.emit('error', new Error('an emitted error'))
+	})
+
+	it('should be able to remove emitters', function (done) {
+		const emitter = new events.EventEmitter()
+		const d = domain.create()
+		let domainGotError = false
+
+		d.add(emitter)
+		d.on('error', function (err) {
+			domainGotError = true
+		})
+
+		emitter.on('error', function (err) {
+			equal(err && err.message, 'This error should not go to the domain', 'error message')
+
+			// Make sure nothing race condition-y is happening
+			setTimeout(function () {
+				equal(domainGotError, false, 'no domain error')
+				done()
+			}, 0)
+		})
+
+		d.remove(emitter)
+		emitter.emit('error', new Error('This error should not go to the domain'))
+	})
+
+	it('bind should work', function (done) {
+		const d = domain.create()
+		d.on('error', function (err) {
+			equal(err && err.message, 'a thrown error', 'error message')
+			done()
+		})
+		d.bind(function (err, a, b) {
+			equal(err && err.message, 'a passed error', 'error message')
+			equal(a, 2, 'value of a')
+			equal(b, 3, 'value of b')
+			throw new Error('a thrown error')
+		})(new Error('a passed error'), 2, 3)
+	})
+
+	it('intercept should work', function (done) {
+		const d = domain.create()
+		let count = 0
+		d.on('error', function (err) {
+			if ( count === 0 ) {
+				equal(err && err.message, 'a thrown error', 'error message')
+			}
+			else if ( count === 1 ) {
+				equal(err && err.message, 'a passed error', 'error message')
+				done()
+			}
+			count++
+		})
+
+		d.intercept(function (a, b) {
+			equal(a, 2, 'value of a')
+			equal(b, 3, 'value of b')
+			throw new Error('a thrown error')
+		})(null, 2, 3)
+
+		d.intercept(function (a, b) {
+			throw new Error('should never reach here')
+		})(new Error('a passed error'), 2, 3)
+	})
+})