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nodejs/test/parallel/test-cluster-setup-master-multiple.js
isaacs 3e1b1dd4a9 Remove excessive copyright/license boilerplate
The copyright and license notice is already in the LICENSE file.  There
is no justifiable reason to also require that it be included in every
file, since the individual files are not individually distributed except
as part of the entire package.
2015-01-12 15:30:28 -08:00

50 lines
1.3 KiB
JavaScript

var common = require('../common');
var assert = require('assert');
var cluster = require('cluster');
assert(cluster.isMaster);
// The cluster.settings object is cloned even though the current implementation
// makes that unecessary. This is to make the test less fragile if the
// implementation ever changes such that cluster.settings is mutated instead of
// replaced.
function cheapClone(obj) {
return JSON.parse(JSON.stringify(obj));
}
var configs = [];
// Capture changes
cluster.on('setup', function() {
console.log('"setup" emitted', cluster.settings);
configs.push(cheapClone(cluster.settings));
});
var execs = [
'node-next',
'node-next-2',
'node-next-3',
];
process.on('exit', function assertTests() {
// Tests that "setup" is emitted for every call to setupMaster
assert.strictEqual(configs.length, execs.length);
assert.strictEqual(configs[0].exec, execs[0]);
assert.strictEqual(configs[1].exec, execs[1]);
assert.strictEqual(configs[2].exec, execs[2]);
});
// Make changes to cluster settings
execs.forEach(function(v, i) {
setTimeout(function() {
cluster.setupMaster({ exec: v });
}, i * 100);
});
// cluster emits 'setup' asynchronously, so we must stay alive long
// enough for that to happen
setTimeout(function() {
console.log('cluster setup complete');
}, (execs.length + 1) * 100);