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31 lines
975 B
Plaintext
31 lines
975 B
Plaintext
/**
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* Copyright (c) 2019, Microsoft Corporation (MIT License).
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*/
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import * as assert from 'assert';
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import { EventEmitter2 } from './eventEmitter2';
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describe('EventEmitter2', () => {
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it('should fire listeners multiple times', () => {
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const order: string[] = [];
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const emitter = new EventEmitter2<number>();
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emitter.event(data => order.push(data + 'a'));
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emitter.event(data => order.push(data + 'b'));
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emitter.fire(1);
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emitter.fire(2);
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assert.deepEqual(order, [ '1a', '1b', '2a', '2b' ]);
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});
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it('should not fire listeners once disposed', () => {
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const order: string[] = [];
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const emitter = new EventEmitter2<number>();
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emitter.event(data => order.push(data + 'a'));
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const disposeB = emitter.event(data => order.push(data + 'b'));
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emitter.event(data => order.push(data + 'c'));
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emitter.fire(1);
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disposeB.dispose();
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emitter.fire(2);
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assert.deepEqual(order, [ '1a', '1b', '1c', '2a', '2c' ]);
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});
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});
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