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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
const common = require('../common');
const fixtures = require('../common/fixtures');
const assert = require('assert');
const { builtinModules } = require('module');
const path = require('path');
assert.strictEqual(
require.resolve(fixtures.path('a')).toLowerCase(),
fixtures.path('a.js').toLowerCase());
assert.strictEqual(
require.resolve(fixtures.path('nested-index', 'one')).toLowerCase(),
fixtures.path('nested-index', 'one', 'index.js').toLowerCase());
assert.strictEqual(require.resolve('path'), 'path');
// Test configurable resolve() paths.
require(fixtures.path('require-resolve.js'));
require(fixtures.path('resolve-paths', 'default', 'verify-paths.js'));
[1, false, null, undefined, {}].forEach((value) => {
const message = 'The "request" argument must be of type string.' +
common.invalidArgTypeHelper(value);
assert.throws(
() => { require.resolve(value); },
{
code: 'ERR_INVALID_ARG_TYPE',
message
});
assert.throws(
() => { require.resolve.paths(value); },
{
code: 'ERR_INVALID_ARG_TYPE',
message
});
});
// Test require.resolve.paths.
{
// builtinModules.
builtinModules.forEach((mod) => {
assert.strictEqual(require.resolve.paths(mod), null);
});
builtinModules.forEach((mod) => {
assert.strictEqual(require.resolve.paths(`node:${mod}`), null);
});
// node_modules.
const resolvedPaths = require.resolve.paths('eslint');
assert.strictEqual(Array.isArray(resolvedPaths), true);
assert.strictEqual(resolvedPaths[0].includes('node_modules'), true);
// relativeModules.
const relativeModules = ['.', '..', './foo', '../bar'];
relativeModules.forEach((mod) => {
const resolvedPaths = require.resolve.paths(mod);
assert.strictEqual(Array.isArray(resolvedPaths), true);
assert.strictEqual(resolvedPaths.length, 1);
assert.strictEqual(resolvedPaths[0], path.dirname(__filename));
// Shouldn't look up relative modules from 'node_modules'.
assert.strictEqual(resolvedPaths.includes('/node_modules'), false);
});
}
{
assert.strictEqual(require.resolve('node:test'), 'node:test');
assert.strictEqual(require.resolve('node:fs'), 'node:fs');
assert.throws(
() => require.resolve('node:unknown'),
{ code: 'MODULE_NOT_FOUND' },
);
}
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