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nodejs/test/parallel/test-buffer-constructor-node-modules-paths.js
Anna Henningsen 9d4ab90117
buffer: do deprecation warning outside node_modules
In addition to `--pending-deprecation`, emit a deprecation warning
for usage of the `Buffer()` constructor for call sites that are outside
of `node_modules`.

The goal of this is to better target developers, rather than
burdening users with an omnipresent and quickly ignored warning.

This implements the result of a TSC meeting discussion
from March 22, 2018.

PR-URL: https://github.com/nodejs/node/pull/19524
Refs: https://github.com/nodejs/node/issues/19079#issuecomment-375121443
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Rod Vagg <rod@vagg.org>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: Myles Borins <myles.borins@gmail.com>
2018-04-10 00:43:41 +02:00

36 lines
1.4 KiB
JavaScript

'use strict';
const child_process = require('child_process');
const assert = require('assert');
const common = require('../common');
if (process.env.NODE_PENDING_DEPRECATION)
common.skip('test does not work when NODE_PENDING_DEPRECATION is set');
function test(main, callSite, expected) {
const { stderr } = child_process.spawnSync(process.execPath, ['-p', `
process.mainModule = { filename: ${JSON.stringify(main)} };
vm.runInNewContext('new Buffer(10)', { Buffer }, {
filename: ${JSON.stringify(callSite)}
});`], { encoding: 'utf8' });
if (expected)
assert(stderr.includes('[DEP0005] DeprecationWarning'), stderr);
else
assert.strictEqual(stderr.trim(), '');
}
test('/a/node_modules/b.js', '/a/node_modules/x.js', true);
test('/a/node_modules/b.js', '/a/node_modules/foo/node_modules/x.js', false);
test('/a/node_modules/foo/node_modules/b.js', '/a/node_modules/x.js', false);
test('/node_modules/foo/b.js', '/node_modules/foo/node_modules/x.js', false);
test('/a.js', '/b.js', true);
test('/a.js', '/node_modules/b.js', false);
test('c:\\a\\node_modules\\b.js', 'c:\\a\\node_modules\\x.js', true);
test('c:\\a\\node_modules\\b.js',
'c:\\a\\node_modules\\foo\\node_modules\\x.js', false);
test('c:\\node_modules\\foo\\b.js',
'c:\\node_modules\\foo\\node_modules\\x.js', false);
test('c:\\a.js', 'c:\\b.js', true);
test('c:\\a.js', 'c:\\node_modules\\b.js', false);