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4f2e372716
Export a new common.noop no-operation function for general use. Allow using common.mustCall() without a fn argument to simplify test cases. Replace various non-op functions throughout tests with common.noop PR-URL: https://github.com/nodejs/node/pull/12027 Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com> Reviewed-By: Richard Lau <riclau@uk.ibm.com> Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com> Reviewed-By: Teddy Katz <teddy.katz@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com>
30 lines
887 B
JavaScript
30 lines
887 B
JavaScript
// Flags: --no-warnings
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'use strict';
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// Test that warnings are emitted when a Promise experiences an uncaught
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// rejection, and then again if the rejection is handled later on.
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const common = require('../common');
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const assert = require('assert');
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let b = 0;
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process.on('warning', common.mustCall((warning) => {
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switch (b++) {
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case 0:
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assert.strictEqual(warning.name, 'UnhandledPromiseRejectionWarning');
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assert(/Unhandled promise rejection/.test(warning.message));
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break;
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case 1:
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assert.strictEqual(warning.name, 'DeprecationWarning');
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break;
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case 2:
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assert.strictEqual(warning.name, 'PromiseRejectionHandledWarning');
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assert(/Promise rejection was handled asynchronously/
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.test(warning.message));
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}
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}, 3));
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const p = Promise.reject('This was rejected');
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setImmediate(common.mustCall(() => p.catch(common.noop)));
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