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f29762f4dd
Enable linting for the test directory. A number of changes was made so all tests conform the current rules used by lib and src directories. The only exception for tests is that unreachable (dead) code is allowed. test-fs-non-number-arguments-throw had to be excluded from the changes because of a weird issue on Windows CI. PR-URL: https://github.com/nodejs/io.js/pull/1721 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
73 lines
2.3 KiB
JavaScript
73 lines
2.3 KiB
JavaScript
'use strict';
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var common = require('../common');
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var assert = require('assert');
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var events = require('events');
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function expect(expected) {
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var actual = [];
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process.on('exit', function() {
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assert.deepEqual(actual.sort(), expected.sort());
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});
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function listener(name) {
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actual.push(name);
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}
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return common.mustCall(listener, expected.length);
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}
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function listener() {}
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var e1 = new events.EventEmitter();
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e1.on('foo', listener);
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e1.on('bar', listener);
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e1.on('baz', listener);
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e1.on('baz', listener);
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var fooListeners = e1.listeners('foo');
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var barListeners = e1.listeners('bar');
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var bazListeners = e1.listeners('baz');
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e1.on('removeListener', expect(['bar', 'baz', 'baz']));
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e1.removeAllListeners('bar');
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e1.removeAllListeners('baz');
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assert.deepEqual(e1.listeners('foo'), [listener]);
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assert.deepEqual(e1.listeners('bar'), []);
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assert.deepEqual(e1.listeners('baz'), []);
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// after calling removeAllListeners,
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// the old listeners array should stay unchanged
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assert.deepEqual(fooListeners, [listener]);
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assert.deepEqual(barListeners, [listener]);
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assert.deepEqual(bazListeners, [listener, listener]);
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// after calling removeAllListeners,
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// new listeners arrays are different from the old
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assert.notEqual(e1.listeners('bar'), barListeners);
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assert.notEqual(e1.listeners('baz'), bazListeners);
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var e2 = new events.EventEmitter();
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e2.on('foo', listener);
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e2.on('bar', listener);
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// expect LIFO order
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e2.on('removeListener', expect(['foo', 'bar', 'removeListener']));
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e2.on('removeListener', expect(['foo', 'bar']));
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e2.removeAllListeners();
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console.error(e2);
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assert.deepEqual([], e2.listeners('foo'));
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assert.deepEqual([], e2.listeners('bar'));
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var e3 = new events.EventEmitter();
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e3.on('removeListener', listener);
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// check for regression where removeAllListeners throws when
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// there exists a removeListener listener, but there exists
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// no listeners for the provided event type
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assert.doesNotThrow(e3.removeAllListeners.bind(e3, 'foo'));
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var e4 = new events.EventEmitter();
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var expectLength = 2;
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e4.on('removeListener', function(name, listener) {
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assert.equal(expectLength--, this.listeners('baz').length);
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});
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e4.on('baz', function() {});
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e4.on('baz', function() {});
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e4.on('baz', function() {});
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assert.equal(e4.listeners('baz').length, expectLength + 1);
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e4.removeAllListeners('baz');
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assert.equal(e4.listeners('baz').length, 0);
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