mirror of https://github.com/nodejs/node.git
20 lines
519 B
JavaScript
20 lines
519 B
JavaScript
'use strict';
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const common = require('../common');
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const dc = require('diagnostics_channel');
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const channel = dc.tracingChannel('test');
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const handlers = {
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start: common.mustNotCall(),
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end: common.mustNotCall(),
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asyncStart: common.mustNotCall(),
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asyncEnd: common.mustNotCall(),
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error: common.mustNotCall()
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};
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// While subscribe occurs _before_ the callback executes,
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// no async events should be published.
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channel.traceCallback(setImmediate, 0, {}, null, common.mustCall());
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channel.subscribe(handlers);
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