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'use strict';
if (module.parent) {
// Signal we've been loaded as a module.
// The following console.log() is part of the test.
console.log('Loaded as a module, exiting with status code 42.');
process.exit(42);
}
const common = require('../common');
const assert = require('assert');
const child = require('child_process');
const path = require('path');
const nodejs = `"${process.execPath}"`;
if (process.argv.length > 2) {
console.log(process.argv.slice(2).join(' '));
process.exit(0);
}
// Assert that nothing is written to stdout.
child.exec(`${nodejs} --eval 42`, common.mustCall((err, stdout, stderr) => {
assert.ifError(err);
assert.strictEqual(stdout, '');
assert.strictEqual(stderr, '');
}));
// Assert that "42\n" is written to stderr.
child.exec(`${nodejs} --eval "console.error(42)"`,
common.mustCall((err, stdout, stderr) => {
assert.ifError(err);
assert.strictEqual(stdout, '');
assert.strictEqual(stderr, '42\n');
}));
// Assert that the expected output is written to stdout.
['--print', '-p -e', '-pe', '-p'].forEach((s) => {
const cmd = `${nodejs} ${s} `;
child.exec(`${cmd}42`, common.mustCall((err, stdout, stderr) => {
assert.ifError(err);
assert.strictEqual(stdout, '42\n');
assert.strictEqual(stderr, '');
}));
child.exec(`${cmd} '[]'`, common.mustCall((err, stdout, stderr) => {
assert.ifError(err);
assert.strictEqual(stdout, '[]\n');
assert.strictEqual(stderr, '');
}));
});
// Assert that module loading works.
{
// Replace \ by / because Windows uses backslashes in paths, but they're still
// interpreted as the escape character when put between quotes.
const filename = __filename.replace(/\\/g, '/');
child.exec(`${nodejs} --eval "require('${filename}')"`,
common.mustCall((err, stdout, stderr) => {
assert.strictEqual(err.code, 42);
assert.strictEqual(
stdout, 'Loaded as a module, exiting with status code 42.\n');
assert.strictEqual(stderr, '');
}));
}
// Check that builtin modules are pre-defined.
child.exec(`${nodejs} --print "os.platform()"`,
common.mustCall((err, stdout, stderr) => {
assert.ifError(err);
assert.strictEqual(stderr, '');
assert.strictEqual(stdout.trim(), require('os').platform());
}));
// Module path resolve bug regression test.
child.exec(`${nodejs} --eval "require('./test/parallel/test-cli-eval.js')"`,
common.mustCall((err, stdout, stderr) => {
assert.strictEqual(err.code, 42);
assert.strictEqual(
stdout, 'Loaded as a module, exiting with status code 42.\n');
assert.strictEqual(stderr, '');
}));
// Missing argument should not crash.
child.exec(`${nodejs} -e`, common.mustCall((err, stdout, stderr) => {
assert.strictEqual(err.code, 9);
assert.strictEqual(stdout, '');
assert.strictEqual(stderr.trim(),
`${process.execPath}: -e requires an argument`);
}));
// Empty program should do nothing.
child.exec(`${nodejs} -e ""`, common.mustCall((err, stdout, stderr) => {
assert.ifError(err);
assert.strictEqual(stdout, '');
assert.strictEqual(stderr, '');
}));
// "\\-42" should be interpreted as an escaped expression, not a switch.
child.exec(`${nodejs} -p "\\-42"`, common.mustCall((err, stdout, stderr) => {
assert.ifError(err);
assert.strictEqual(stdout, '-42\n');
assert.strictEqual(stderr, '');
}));
child.exec(`${nodejs} --use-strict -p process.execArgv`,
common.mustCall((err, stdout, stderr) => {
assert.ifError(err);
assert.strictEqual(
stdout, "[ '--use-strict', '-p', 'process.execArgv' ]\n"
);
assert.strictEqual(stderr, '');
}));
// Regression test for https://github.com/nodejs/node/issues/3574.
{
const emptyFile = path.join(common.fixturesDir, 'empty.js');
child.exec(`${nodejs} -e 'require("child_process").fork("${emptyFile}")'`,
common.mustCall((err, stdout, stderr) => {
assert.ifError(err);
assert.strictEqual(stdout, '');
assert.strictEqual(stderr, '');
}));
}
// Regression test for https://github.com/nodejs/node/issues/8534.
{
const script = `
// console.log() can revive the event loop so we must be careful
// to write from a 'beforeExit' event listener only once.
process.once("beforeExit", () => console.log("beforeExit"));
process.on("exit", () => console.log("exit"));
console.log("start");
`;
const options = { encoding: 'utf8' };
const proc = child.spawnSync(process.execPath, ['-e', script], options);
assert.strictEqual(proc.stderr, '');
assert.strictEqual(proc.stdout, 'start\nbeforeExit\nexit\n');
}
[ '-arg1',
'-arg1 arg2 --arg3',
'--',
'arg1 -- arg2',
].forEach(function(args) {
// Ensure that arguments are successfully passed to eval.
const opt = ' --eval "console.log(process.argv.slice(1).join(\' \'))"';
const cmd = `${nodejs}${opt} -- ${args}`;
child.exec(cmd, common.mustCall(function(err, stdout, stderr) {
assert.strictEqual(stdout, args + '\n');
assert.strictEqual(stderr, '');
assert.strictEqual(err, null);
}));
// Ensure that arguments are successfully passed to print.
const popt = ' --print "process.argv.slice(1).join(\' \')"';
const pcmd = `${nodejs}${popt} -- ${args}`;
child.exec(pcmd, common.mustCall(function(err, stdout, stderr) {
assert.strictEqual(stdout, args + '\n');
assert.strictEqual(stderr, '');
assert.strictEqual(err, null);
}));
// Ensure that arguments are successfully passed to a script.
// The first argument after '--' should be interpreted as a script
// filename.
const filecmd = `${nodejs} -- ${__filename} ${args}`;
child.exec(filecmd, common.mustCall(function(err, stdout, stderr) {
assert.strictEqual(stdout, args + '\n');
assert.strictEqual(stderr, '');
assert.strictEqual(err, null);
}));
});
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