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c5b07d4ec6
Commit 93a44d5 ("src: fix deferred events not working with -e") defers
evaluation of the script to the next tick.
A side effect of that change is that 'beforeExit' listeners run before
the actual script. 'beforeExit' is emitted when the event loop is
empty but process.nextTick() does not ref the event loop.
Fix that by using setImmediate(). Because it is implemented in terms
of a uv_check_t handle, it interacts with the event loop properly.
Fixes: https://github.com/nodejs/node/issues/8534
PR-URL: https://github.com/nodejs/node/pull/8821
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
115 lines
3.6 KiB
JavaScript
115 lines
3.6 KiB
JavaScript
'use strict';
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if (module.parent) {
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// signal we've been loaded as a module
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console.log('Loaded as a module, exiting with status code 42.');
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process.exit(42);
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}
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const common = require('../common');
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const assert = require('assert');
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const child = require('child_process');
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const path = require('path');
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const nodejs = '"' + process.execPath + '"';
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// replace \ by / because windows uses backslashes in paths, but they're still
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// interpreted as the escape character when put between quotes.
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var filename = __filename.replace(/\\/g, '/');
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// assert that nothing is written to stdout
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child.exec(nodejs + ' --eval 42',
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function(err, stdout, stderr) {
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assert.equal(stdout, '');
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assert.equal(stderr, '');
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});
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// assert that "42\n" is written to stderr
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child.exec(nodejs + ' --eval "console.error(42)"',
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function(err, stdout, stderr) {
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assert.equal(stdout, '');
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assert.equal(stderr, '42\n');
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});
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// assert that the expected output is written to stdout
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['--print', '-p -e', '-pe', '-p'].forEach(function(s) {
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var cmd = nodejs + ' ' + s + ' ';
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child.exec(cmd + '42',
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function(err, stdout, stderr) {
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assert.equal(stdout, '42\n');
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assert.equal(stderr, '');
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});
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child.exec(cmd + "'[]'", common.mustCall(
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function(err, stdout, stderr) {
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assert.equal(stdout, '[]\n');
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assert.equal(stderr, '');
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}));
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});
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// assert that module loading works
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child.exec(nodejs + ' --eval "require(\'' + filename + '\')"',
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function(status, stdout, stderr) {
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assert.equal(status.code, 42);
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});
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// Check that builtin modules are pre-defined.
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child.exec(nodejs + ' --print "os.platform()"',
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function(status, stdout, stderr) {
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assert.strictEqual(stderr, '');
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assert.strictEqual(stdout.trim(), require('os').platform());
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});
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// module path resolve bug, regression test
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child.exec(nodejs + ' --eval "require(\'./test/parallel/test-cli-eval.js\')"',
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function(status, stdout, stderr) {
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assert.equal(status.code, 42);
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});
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// Missing argument should not crash
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child.exec(nodejs + ' -e', common.mustCall(function(status, stdout, stderr) {
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assert.notStrictEqual(status, null);
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assert.strictEqual(status.code, 9);
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}));
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// empty program should do nothing
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child.exec(nodejs + ' -e ""', function(status, stdout, stderr) {
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assert.equal(stdout, '');
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assert.equal(stderr, '');
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});
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// "\\-42" should be interpreted as an escaped expression, not a switch
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child.exec(nodejs + ' -p "\\-42"',
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function(err, stdout, stderr) {
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assert.equal(stdout, '-42\n');
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assert.equal(stderr, '');
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});
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child.exec(nodejs + ' --use-strict -p process.execArgv',
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function(status, stdout, stderr) {
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assert.equal(stdout, "[ '--use-strict', '-p', 'process.execArgv' ]\n");
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});
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// Regression test for https://github.com/nodejs/node/issues/3574
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const emptyFile = path.join(common.fixturesDir, 'empty.js');
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child.exec(nodejs + ` -e 'require("child_process").fork("${emptyFile}")'`,
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function(status, stdout, stderr) {
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assert.equal(stdout, '');
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assert.equal(stderr, '');
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});
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// Regression test for https://github.com/nodejs/node/issues/8534.
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{
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const script = `
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// console.log() can revive the event loop so we must be careful
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// to write from a 'beforeExit' event listener only once.
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process.once("beforeExit", () => console.log("beforeExit"));
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process.on("exit", () => console.log("exit"));
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console.log("start");
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`;
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const options = { encoding: 'utf8' };
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const proc = child.spawnSync(process.execPath, ['-e', script], options);
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assert.strictEqual(proc.stderr, '');
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assert.strictEqual(proc.stdout, 'start\nbeforeExit\nexit\n');
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}
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