d795301025
common.js needs to be loaded in all tests so that there is checking for variable leaks and possibly other things. However, it does not need to be assigned to a variable if nothing in common.js is referred to elsewhere in the test. The main tradeoff for this bit of code churn is that it gets the code base most of the way to being able to enable the no-unused-vars rule in eslint. (The non-tooling benefit is that it lessens cognitive load when reading tests as it is an immediate indication that none of the functions or properties in common.js will be used by the test.) PR-URL: https://github.com/nodejs/node/pull/4563 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
86 lines
2.3 KiB
JavaScript
86 lines
2.3 KiB
JavaScript
'use strict';
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require('../common');
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var assert = require('assert');
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var childProcess = require('child_process');
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// Child pipe test
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if (process.argv[2] === 'pipetest') {
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process.stdout.write('stdout message');
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process.stderr.write('stderr message');
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} else if (process.argv[2] === 'ipctest') {
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// Child IPC test
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process.send('message from child');
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process.on('message', function() {
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process.send('got message from master');
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});
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} else if (process.argv[2] === 'parent') {
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// Parent | start child pipe test
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var child = childProcess.fork(process.argv[1], ['pipetest'], {silent: true});
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// Allow child process to self terminate
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child._channel.close();
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child._channel = null;
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child.on('exit', function() {
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process.exit(0);
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});
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} else {
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// testcase | start parent && child IPC test
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// testing: is stderr and stdout piped to parent
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var args = [process.argv[1], 'parent'];
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var parent = childProcess.spawn(process.execPath, args);
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//got any stderr or std data
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var stdoutData = false;
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parent.stdout.on('data', function() {
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stdoutData = true;
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});
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var stderrData = false;
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parent.stdout.on('data', function() {
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stderrData = true;
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});
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// testing: do message system work when using silent
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var child = childProcess.fork(process.argv[1], ['ipctest'], {silent: true});
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// Manual pipe so we will get errors
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child.stderr.pipe(process.stderr, {end: false});
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child.stdout.pipe(process.stdout, {end: false});
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var childSending = false;
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var childReciveing = false;
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child.on('message', function(message) {
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if (childSending === false) {
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childSending = (message === 'message from child');
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}
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if (childReciveing === false) {
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childReciveing = (message === 'got message from master');
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}
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if (childReciveing === true) {
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child.kill();
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}
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});
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child.send('message to child');
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// Check all values
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process.on('exit', function() {
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// clean up
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child.kill();
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parent.kill();
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// Check std(out|err) pipes
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assert.ok(!stdoutData, 'The stdout socket was piped to parent');
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assert.ok(!stderrData, 'The stderr socket was piped to parent');
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// Check message system
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assert.ok(childSending, 'The child was able to send a message');
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assert.ok(childReciveing, 'The child was able to receive a message');
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});
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}
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