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* format test per project guide * use listener that emits clear message * use common.mustNotCall() to confirm different listener is not invoked * add comment describing the test PR-URL: https://github.com/nodejs/node/pull/13689 Reviewed-By: David Cai <davidcai1993@yahoo.com> Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
22 lines
627 B
JavaScript
22 lines
627 B
JavaScript
'use strict';
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const common = require('../common');
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// This test checks that the `stop` event is emitted asynchronously.
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//
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// If it isn't asynchronous, then the listener will be called during the
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// execution of `watch.stop()`. That would be a bug.
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//
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// If it is asynchronous, then the listener will be removed before the event is
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// emitted.
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const fs = require('fs');
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const listener = common.mustNotCall(
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'listener should have been removed before the event was emitted'
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);
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const watch = fs.watchFile(__filename, common.mustNotCall());
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watch.once('stop', listener);
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watch.stop();
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watch.removeListener('stop', listener);
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