f29762f4dd
Enable linting for the test directory. A number of changes was made so all tests conform the current rules used by lib and src directories. The only exception for tests is that unreachable (dead) code is allowed. test-fs-non-number-arguments-throw had to be excluded from the changes because of a weird issue on Windows CI. PR-URL: https://github.com/nodejs/io.js/pull/1721 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
100 lines
2.2 KiB
JavaScript
100 lines
2.2 KiB
JavaScript
'use strict';
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var is_windows = process.platform === 'win32';
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var common = require('../common');
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var assert = require('assert'),
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os = require('os'),
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util = require('util'),
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spawn = require('child_process').spawn;
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// We're trying to reproduce:
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// $ echo "hello\nnode\nand\nworld" | grep o | sed s/o/a/
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var grep, sed, echo;
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if (is_windows) {
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grep = spawn('grep', ['--binary', 'o']),
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sed = spawn('sed', ['--binary', 's/o/O/']),
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echo = spawn('cmd.exe',
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['/c', 'echo', 'hello&&', 'echo',
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'node&&', 'echo', 'and&&', 'echo', 'world']);
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} else {
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grep = spawn('grep', ['o']),
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sed = spawn('sed', ['s/o/O/']),
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echo = spawn('echo', ['hello\nnode\nand\nworld\n']);
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}
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/*
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* grep and sed hang if the spawn function leaks file descriptors to child
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* processes.
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* This happens when calling pipe(2) and then forgetting to set the
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* FD_CLOEXEC flag on the resulting file descriptors.
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*
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* This test checks child processes exit, meaning they don't hang like
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* explained above.
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*/
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// pipe echo | grep
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echo.stdout.on('data', function(data) {
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console.error('grep stdin write ' + data.length);
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if (!grep.stdin.write(data)) {
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echo.stdout.pause();
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}
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});
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grep.stdin.on('drain', function(data) {
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echo.stdout.resume();
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});
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// propagate end from echo to grep
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echo.stdout.on('end', function(code) {
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grep.stdin.end();
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});
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echo.on('exit', function() {
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console.error('echo exit');
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});
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grep.on('exit', function() {
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console.error('grep exit');
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});
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sed.on('exit', function() {
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console.error('sed exit');
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});
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// pipe grep | sed
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grep.stdout.on('data', function(data) {
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console.error('grep stdout ' + data.length);
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if (!sed.stdin.write(data)) {
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grep.stdout.pause();
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}
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});
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sed.stdin.on('drain', function(data) {
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grep.stdout.resume();
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});
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// propagate end from grep to sed
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grep.stdout.on('end', function(code) {
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console.error('grep stdout end');
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sed.stdin.end();
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});
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var result = '';
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// print sed's output
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sed.stdout.on('data', function(data) {
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result += data.toString('utf8', 0, data.length);
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util.print(data);
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});
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sed.stdout.on('end', function(code) {
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assert.equal(result, 'hellO' + os.EOL + 'nOde' + os.EOL + 'wOrld' + os.EOL);
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});
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