gecko-dev/addon-sdk/source/test/test-child_process.js
2014-03-03 11:22:07 -08:00

544 lines
18 KiB
JavaScript

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
'use strict';
const { spawn, exec, execFile, fork } = require('sdk/system/child_process');
const { env, platform, pathFor } = require('sdk/system');
const { isNumber } = require('sdk/lang/type');
const { after } = require('sdk/test/utils');
const { emit } = require('sdk/event/core');
const PROFILE_DIR= pathFor('ProfD');
const isWindows = platform.toLowerCase().indexOf('win') === 0;
const { getScript, cleanUp } = require('./fixtures/child-process-scripts');
// We use direct paths to these utilities as we currently cannot
// call non-absolute paths to utilities in subprocess.jsm
const CAT_PATH = isWindows ? 'C:\\Windows\\System32\\more.com' : '/bin/cat';
exports.testExecCallbackSuccess = function (assert, done) {
exec(isWindows ? 'DIR /A-D' : 'ls -al', {
cwd: PROFILE_DIR
}, function (err, stdout, stderr) {
assert.ok(!err, 'no errors found');
assert.equal(stderr, '', 'stderr is empty');
assert.ok(/extensions\.ini/.test(stdout), 'stdout output of `ls -al` finds files');
if (isWindows) {
// `DIR /A-D` does not display directories on WIN
assert.ok(!/<DIR>/.test(stdout),
'passing arguments in `exec` works');
}
else {
// `ls -al` should list all the priviledge information on Unix
assert.ok(/d(r[-|w][-|x]){3}/.test(stdout),
'passing arguments in `exec` works');
}
done();
});
};
exports.testExecCallbackError = function (assert, done) {
exec('not-real-command', { cwd: PROFILE_DIR }, function (err, stdout, stderr) {
assert.ok(/not-real-command/.test(err.toString()),
'error contains error message');
assert.ok(err.lineNumber >= 0, 'error contains lineNumber');
assert.ok(/resource:\/\//.test(err.fileName), 'error contains fileName');
assert.ok(err.code && isNumber(err.code), 'non-zero error code property on error');
assert.equal(err.signal, null,
'null signal property when not manually terminated');
assert.equal(stdout, '', 'stdout is empty');
assert.ok(/not-real-command/.test(stderr), 'stderr contains error message');
done();
});
};
exports.testExecOptionsEnvironment = function (assert, done) {
getScript('check-env').then(envScript => {
exec(envScript, {
cwd: PROFILE_DIR,
env: { CHILD_PROCESS_ENV_TEST: 'my-value-test' }
}, function (err, stdout, stderr) {
assert.equal(stderr, '', 'stderr is empty');
assert.ok(!err, 'received `cwd` option');
assert.ok(/my-value-test/.test(stdout),
'receives environment option');
done();
});
});
};
exports.testExecOptionsTimeout = function (assert, done) {
let count = 0;
getScript('wait').then(script => {
let child = exec(script, { timeout: 100 }, (err, stdout, stderr) => {
assert.equal(err.killed, true, 'error has `killed` property as true');
assert.equal(err.code, null, 'error has `code` as null');
assert.equal(err.signal, 'SIGTERM',
'error has `signal` as SIGTERM by default');
assert.equal(stdout, '', 'stdout is empty');
assert.equal(stderr, '', 'stderr is empty');
if (++count === 3) complete();
});
function exitHandler (code, signal) {
assert.equal(code, null, 'error has `code` as null');
assert.equal(signal, 'SIGTERM',
'error has `signal` as SIGTERM by default');
if (++count === 3) complete();
}
function closeHandler (code, signal) {
assert.equal(code, null, 'error has `code` as null');
assert.equal(signal, 'SIGTERM',
'error has `signal` as SIGTERM by default');
if (++count === 3) complete();
}
child.on('exit', exitHandler);
child.on('close', closeHandler);
function complete () {
child.off('exit', exitHandler);
child.off('close', closeHandler);
done();
}
});
};
exports.testExecFileCallbackSuccess = function (assert, done) {
getScript('args').then(script => {
execFile(script, ['--myargs', '-j', '-s'], { cwd: PROFILE_DIR }, function (err, stdout, stderr) {
assert.ok(!err, 'no errors found');
assert.equal(stderr, '', 'stderr is empty');
// Trim output since different systems have different new line output
assert.equal(stdout.trim(), '--myargs -j -s'.trim(), 'passes in correct arguments');
done();
});
});
};
exports.testExecFileCallbackError = function (assert, done) {
execFile('not-real-command', { cwd: PROFILE_DIR }, function (err, stdout, stderr) {
assert.ok(/NS_ERROR_FILE_UNRECOGNIZED_PATH/.test(err.message),
'error contains error message');
assert.ok(err.lineNumber >= 0, 'error contains lineNumber');
assert.ok(/resource:\/\//.test(err.fileName), 'error contains fileName');
assert.equal(stdout, '', 'stdout is empty');
assert.equal(stderr, '', 'stdout is empty');
done();
});
};
exports.testExecFileOptionsEnvironment = function (assert, done) {
getScript('check-env').then(script => {
execFile(script, {
cwd: PROFILE_DIR,
env: { CHILD_PROCESS_ENV_TEST: 'my-value-test' }
}, function (err, stdout, stderr) {
assert.equal(stderr, '', 'stderr is empty');
assert.ok(!err, 'received `cwd` option');
assert.ok(/my-value-test/.test(stdout),
'receives environment option');
done();
});
});
};
exports.testExecFileOptionsTimeout = function (assert, done) {
let count = 0;
getScript('wait').then(script => {
let child = execFile(script, { timeout: 100 }, (err, stdout, stderr) => {
assert.equal(err.killed, true, 'error has `killed` property as true');
assert.equal(err.code, null, 'error has `code` as null');
assert.equal(err.signal, 'SIGTERM',
'error has `signal` as SIGTERM by default');
assert.equal(stdout, '', 'stdout is empty');
assert.equal(stderr, '', 'stderr is empty');
if (++count === 3) complete();
});
function exitHandler (code, signal) {
assert.equal(code, null, 'error has `code` as null');
assert.equal(signal, 'SIGTERM',
'error has `signal` as SIGTERM by default');
if (++count === 3) complete();
}
function closeHandler (code, signal) {
assert.equal(code, null, 'error has `code` as null');
assert.equal(signal, 'SIGTERM',
'error has `signal` as SIGTERM by default');
if (++count === 3) complete();
}
child.on('exit', exitHandler);
child.on('close', closeHandler);
function complete () {
child.off('exit', exitHandler);
child.off('close', closeHandler);
done();
}
});
};
/**
* Not necessary to test for both `exec` and `execFile`, but
* it is necessary to test both when the buffer is larger
* and smaller than buffer size used by the subprocess library (1024)
*/
exports.testExecFileOptionsMaxBufferLargeStdOut = function (assert, done) {
let count = 0;
let stdoutChild;
// Creates a buffer of 2000 to stdout, greater than 1024
getScript('large-out').then(script => {
stdoutChild = execFile(script, ['10000'], { maxBuffer: 50 }, (err, stdout, stderr) => {
assert.ok(/stdout maxBuffer exceeded/.test(err.toString()),
'error contains stdout maxBuffer exceeded message');
assert.ok(stdout.length >= 50, 'stdout has full buffer');
assert.equal(stderr, '', 'stderr is empty');
if (++count === 3) complete();
});
stdoutChild.on('exit', exitHandler);
stdoutChild.on('close', closeHandler);
});
function exitHandler (code, signal) {
assert.equal(code, null, 'Exit code is null in exit handler');
assert.equal(signal, 'SIGTERM', 'Signal is SIGTERM in exit handler');
if (++count === 3) complete();
}
function closeHandler (code, signal) {
assert.equal(code, null, 'Exit code is null in close handler');
assert.equal(signal, 'SIGTERM', 'Signal is SIGTERM in close handler');
if (++count === 3) complete();
}
function complete () {
stdoutChild.off('exit', exitHandler);
stdoutChild.off('close', closeHandler);
done();
}
};
exports.testExecFileOptionsMaxBufferLargeStdOErr = function (assert, done) {
let count = 0;
let stderrChild;
// Creates a buffer of 2000 to stderr, greater than 1024
getScript('large-err').then(script => {
stderrChild = execFile(script, ['10000'], { maxBuffer: 50 }, (err, stdout, stderr) => {
assert.ok(/stderr maxBuffer exceeded/.test(err.toString()),
'error contains stderr maxBuffer exceeded message');
assert.ok(stderr.length >= 50, 'stderr has full buffer');
assert.equal(stdout, '', 'stdout is empty');
if (++count === 3) complete();
});
stderrChild.on('exit', exitHandler);
stderrChild.on('close', closeHandler);
});
function exitHandler (code, signal) {
assert.equal(code, null, 'Exit code is null in exit handler');
assert.equal(signal, 'SIGTERM', 'Signal is SIGTERM in exit handler');
if (++count === 3) complete();
}
function closeHandler (code, signal) {
assert.equal(code, null, 'Exit code is null in close handler');
assert.equal(signal, 'SIGTERM', 'Signal is SIGTERM in close handler');
if (++count === 3) complete();
}
function complete () {
stderrChild.off('exit', exitHandler);
stderrChild.off('close', closeHandler);
done();
}
};
/**
* When total buffer is < process buffer (1024), the process will exit
* and not get a chance to be killed for violating the maxBuffer,
* although the error will still be sent through (node behaviour)
*/
exports.testExecFileOptionsMaxBufferSmallStdOut = function (assert, done) {
let count = 0;
let stdoutChild;
// Creates a buffer of 60 to stdout, less than 1024
getScript('large-out').then(script => {
stdoutChild = execFile(script, ['60'], { maxBuffer: 50 }, (err, stdout, stderr) => {
assert.ok(/stdout maxBuffer exceeded/.test(err.toString()),
'error contains stdout maxBuffer exceeded message');
assert.ok(stdout.length >= 50, 'stdout has full buffer');
assert.equal(stderr, '', 'stderr is empty');
if (++count === 3) complete();
});
stdoutChild.on('exit', exitHandler);
stdoutChild.on('close', closeHandler);
});
function exitHandler (code, signal) {
// Sometimes the buffer limit is hit before the process closes successfully
// on both OSX/Windows
if (code === null) {
assert.equal(code, null, 'Exit code is null in exit handler');
assert.equal(signal, 'SIGTERM', 'Signal is SIGTERM in exit handler');
}
else {
assert.equal(code, 0, 'Exit code is 0 in exit handler');
assert.equal(signal, null, 'Signal is null in exit handler');
}
if (++count === 3) complete();
}
function closeHandler (code, signal) {
// Sometimes the buffer limit is hit before the process closes successfully
// on both OSX/Windows
if (code === null) {
assert.equal(code, null, 'Exit code is null in close handler');
assert.equal(signal, 'SIGTERM', 'Signal is SIGTERM in close handler');
}
else {
assert.equal(code, 0, 'Exit code is 0 in close handler');
assert.equal(signal, null, 'Signal is null in close handler');
}
if (++count === 3) complete();
}
function complete () {
stdoutChild.off('exit', exitHandler);
stdoutChild.off('close', closeHandler);
done();
}
};
exports.testExecFileOptionsMaxBufferSmallStdErr = function (assert, done) {
let count = 0;
let stderrChild;
// Creates a buffer of 60 to stderr, less than 1024
getScript('large-err').then(script => {
stderrChild = execFile(script, ['60'], { maxBuffer: 50 }, (err, stdout, stderr) => {
assert.ok(/stderr maxBuffer exceeded/.test(err.toString()),
'error contains stderr maxBuffer exceeded message');
assert.ok(stderr.length >= 50, 'stderr has full buffer');
assert.equal(stdout, '', 'stdout is empty');
if (++count === 3) complete();
});
stderrChild.on('exit', exitHandler);
stderrChild.on('close', closeHandler);
});
function exitHandler (code, signal) {
// Sometimes the buffer limit is hit before the process closes successfully
// on both OSX/Windows
if (code === null) {
assert.equal(code, null, 'Exit code is null in exit handler');
assert.equal(signal, 'SIGTERM', 'Signal is SIGTERM in exit handler');
}
else {
assert.equal(code, 0, 'Exit code is 0 in exit handler');
assert.equal(signal, null, 'Signal is null in exit handler');
}
if (++count === 3) complete();
}
function closeHandler (code, signal) {
// Sometimes the buffer limit is hit before the process closes successfully
// on both OSX/Windows
if (code === null) {
assert.equal(code, null, 'Exit code is null in close handler');
assert.equal(signal, 'SIGTERM', 'Signal is SIGTERM in close handler');
}
else {
assert.equal(code, 0, 'Exit code is 0 in close handler');
assert.equal(signal, null, 'Signal is null in close handler');
}
if (++count === 3) complete();
}
function complete () {
stderrChild.off('exit', exitHandler);
stderrChild.off('close', closeHandler);
done();
}
};
exports.testChildExecFileKillSignal = function (assert, done) {
getScript('wait').then(script => {
execFile(script, {
killSignal: 'beepbeep',
timeout: 10
}, function (err, stdout, stderr) {
assert.equal(err.signal, 'beepbeep', 'correctly used custom killSignal');
done();
});
});
};
exports.testChildProperties = function (assert, done) {
getScript('check-env').then(script => {
let child = spawn(script, {
env: { CHILD_PROCESS_ENV_TEST: 'my-value-test' }
});
if (isWindows)
assert.ok(true, 'Windows environment does not have `pid`');
else
assert.ok(child.pid > 0, 'Child has a pid');
done();
});
};
exports.testChildStdinStreamLarge = function (assert, done) {
let REPEAT = 2000;
let allData = '';
// Use direct paths to more/cat, as we do not currently support calling non-files
// from subprocess.jsm
let child = spawn(CAT_PATH);
child.stdout.on('data', onData);
child.on('close', onClose);
for (let i = 0; i < REPEAT; i++)
emit(child.stdin, 'data', '12345\n');
emit(child.stdin, 'end');
function onData (data) {
allData += data;
}
function onClose (code, signal) {
child.stdout.off('data', onData);
child.off('close', onClose);
assert.equal(code, 0, 'exited succesfully');
assert.equal(signal, null, 'no kill signal given');
assert.equal(allData.replace(/\W/g, '').length, '12345'.length * REPEAT,
'all data processed from stdin');
done();
}
};
exports.testChildStdinStreamSmall = function (assert, done) {
let allData = '';
let child = spawn(CAT_PATH);
child.stdout.on('data', onData);
child.on('close', onClose);
emit(child.stdin, 'data', '12345');
emit(child.stdin, 'end');
function onData (data) {
allData += data;
}
function onClose (code, signal) {
child.stdout.off('data', onData);
child.off('close', onClose);
assert.equal(code, 0, 'exited succesfully');
assert.equal(signal, null, 'no kill signal given');
assert.equal(allData.trim(), '12345', 'all data processed from stdin');
done();
}
};
/*
* This tests failures when an error is thrown attempting to
* spawn the process, like an invalid command
*/
exports.testChildEventsSpawningError= function (assert, done) {
let handlersCalled = 0;
let child = execFile('i-do-not-exist', (err, stdout, stderr) => {
assert.ok(err, 'error was passed into callback');
assert.equal(stdout, '', 'stdout is empty')
assert.equal(stderr, '', 'stderr is empty');
if (++handlersCalled === 3) complete();
});
child.on('error', handleError);
child.on('exit', handleExit);
child.on('close', handleClose);
function handleError (e) {
assert.ok(e, 'error passed into error handler');
if (++handlersCalled === 3) complete();
}
function handleClose (code, signal) {
assert.equal(code, -1,
'process was never spawned, therefore exit code is -1');
assert.equal(signal, null, 'signal should be null');
if (++handlersCalled === 3) complete();
}
function handleExit (code, signal) {
assert.fail('Close event should not be called on init failure');
}
function complete () {
child.off('error', handleError);
child.off('exit', handleExit);
child.off('close', handleClose);
done();
}
};
exports.testSpawnOptions = function (assert, done) {
let count = 0;
let envStdout = '';
let cwdStdout = '';
let checkEnv, checkPwd, envChild, cwdChild;
getScript('check-env').then(script => {
checkEnv = script;
return getScript('check-pwd');
}).then(script => {
checkPwd = script;
envChild = spawn(checkEnv, {
env: { CHILD_PROCESS_ENV_TEST: 'my-value-test' }
});
cwdChild = spawn(checkPwd, { cwd: PROFILE_DIR });
// Do these need to be unbound?
envChild.stdout.on('data', data => envStdout += data);
cwdChild.stdout.on('data', data => cwdStdout += data);
envChild.on('close', envClose);
cwdChild.on('close', cwdClose);
});
function envClose () {
assert.equal(envStdout.trim(), 'my-value-test', 'spawn correctly passed in ENV');
if (++count === 2) complete();
}
function cwdClose () {
// Check for PROFILE_DIR in the output because
// some systems resolve symbolic links, and on OSX
// /var -> /private/var
let isCorrectPath = ~cwdStdout.trim().indexOf(PROFILE_DIR);
assert.ok(isCorrectPath, 'spawn correctly passed in cwd');
if (++count === 2) complete();
}
function complete () {
envChild.off('close', envClose);
cwdChild.off('close', cwdClose);
done();
}
};
exports.testFork = function (assert) {
assert.throws(function () {
fork();
}, /not currently supported/, 'fork() correctly throws an unsupported error');
};
after(exports, cleanUp);
require("test").run(exports);