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This commit adds a mustNotCall() helper for testing. This provides an alternative to using common.fail() as a callback, or creating a callback function for the sole purpose of calling common.fail(). PR-URL: https://github.com/nodejs/node/pull/11152 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com> Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com> Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com> Reviewed-By: Yuta Hiroto <hello@about-hiroppy.com>
27 lines
646 B
JavaScript
27 lines
646 B
JavaScript
'use strict';
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const common = require('../common');
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const assert = require('assert');
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const path = require('path');
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const spawn = require('child_process').spawn;
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const sub = path.join(common.fixturesDir, 'print-chars.js');
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const n = 500000;
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const child = spawn(process.argv[0], [sub, n]);
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let count = 0;
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child.stderr.setEncoding('utf8');
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child.stderr.on('data', common.mustNotCall());
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child.stdout.setEncoding('utf8');
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child.stdout.on('data', (data) => {
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count += data.length;
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});
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child.on('close', common.mustCall((code, signal) => {
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assert.strictEqual(code, 0);
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assert.strictEqual(signal, null);
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assert.strictEqual(n, count);
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}));
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