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nodejs/test/parallel/test-signal-handler.js
cjihrig 7dd82dd1c3 test: add common.mustNotCall()
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>
2017-02-06 14:07:55 -05:00

36 lines
844 B
JavaScript

'use strict';
const common = require('../common');
if (common.isWindows) {
common.skip('SIGUSR1 and SIGHUP signals are not supported');
return;
}
console.log('process.pid: ' + process.pid);
process.on('SIGUSR1', common.mustCall(function() {}));
process.on('SIGUSR1', common.mustCall(function() {
setTimeout(function() {
console.log('End.');
process.exit(0);
}, 5);
}));
let i = 0;
setInterval(function() {
console.log('running process...' + ++i);
if (i === 5) {
process.kill(process.pid, 'SIGUSR1');
}
}, 1);
// Test on condition where a watcher for SIGNAL
// has been previously registered, and `process.listeners(SIGNAL).length === 1`
process.on('SIGHUP', common.mustNotCall());
process.removeAllListeners('SIGHUP');
process.on('SIGHUP', common.mustCall(function() {}));
process.kill(process.pid, 'SIGHUP');