 c177363a19
			
		
	
	c177363a19
	
	
	
		
			
			🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
		
			
				
	
	
		
			598 lines
		
	
	
		
			20 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			598 lines
		
	
	
		
			20 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| var path = require('path');
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| var fs = require('fs');
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| var test = require('tape');
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| var resolve = require('../');
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| var async = require('../async');
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| 
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| test('`./async` entry point', function (t) {
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|     t.equal(resolve, async, '`./async` entry point is the same as `main`');
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|     t.end();
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| });
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| 
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| test('async foo', function (t) {
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|     t.plan(12);
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|     var dir = path.join(__dirname, 'resolver');
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| 
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|     resolve('./foo', { basedir: dir }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'foo.js'));
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|         t.equal(pkg && pkg.name, 'resolve');
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|     });
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| 
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|     resolve('./foo.js', { basedir: dir }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'foo.js'));
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|         t.equal(pkg && pkg.name, 'resolve');
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|     });
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| 
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|     resolve('./foo', { basedir: dir, 'package': { main: 'resolver' } }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'foo.js'));
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|         t.equal(pkg && pkg.main, 'resolver');
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|     });
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| 
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|     resolve('./foo.js', { basedir: dir, 'package': { main: 'resolver' } }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'foo.js'));
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|         t.equal(pkg.main, 'resolver');
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|     });
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| 
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|     resolve('./foo', { basedir: dir, filename: path.join(dir, 'baz.js') }, function (err, res) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'foo.js'));
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|     });
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| 
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|     resolve('foo', { basedir: dir }, function (err) {
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|         t.equal(err.message, "Cannot find module 'foo' from '" + path.resolve(dir) + "'");
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|         t.equal(err.code, 'MODULE_NOT_FOUND');
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|     });
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| 
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|     // Test that filename is reported as the "from" value when passed.
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|     resolve('foo', { basedir: dir, filename: path.join(dir, 'baz.js') }, function (err) {
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|         t.equal(err.message, "Cannot find module 'foo' from '" + path.join(dir, 'baz.js') + "'");
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|     });
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| });
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| 
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| test('bar', function (t) {
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|     t.plan(6);
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|     var dir = path.join(__dirname, 'resolver');
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| 
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|     resolve('foo', { basedir: dir + '/bar' }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'bar/node_modules/foo/index.js'));
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|         t.equal(pkg, undefined);
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|     });
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| 
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|     resolve('foo', { basedir: dir + '/bar' }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'bar/node_modules/foo/index.js'));
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|         t.equal(pkg, undefined);
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|     });
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| 
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|     resolve('foo', { basedir: dir + '/bar', 'package': { main: 'bar' } }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'bar/node_modules/foo/index.js'));
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|         t.equal(pkg.main, 'bar');
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|     });
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| });
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| 
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| test('baz', function (t) {
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|     t.plan(4);
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|     var dir = path.join(__dirname, 'resolver');
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| 
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|     resolve('./baz', { basedir: dir }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'baz/quux.js'));
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|         t.equal(pkg.main, 'quux.js');
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|     });
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| 
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|     resolve('./baz', { basedir: dir, 'package': { main: 'resolver' } }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'baz/quux.js'));
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|         t.equal(pkg.main, 'quux.js');
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|     });
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| });
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| 
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| test('biz', function (t) {
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|     t.plan(24);
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|     var dir = path.join(__dirname, 'resolver/biz/node_modules');
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| 
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|     resolve('./grux', { basedir: dir }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'grux/index.js'));
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|         t.equal(pkg, undefined);
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|     });
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| 
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|     resolve('./grux', { basedir: dir, 'package': { main: 'biz' } }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'grux/index.js'));
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|         t.equal(pkg.main, 'biz');
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|     });
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| 
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|     resolve('./garply', { basedir: dir }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'garply/lib/index.js'));
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|         t.equal(pkg.main, './lib');
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|     });
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| 
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|     resolve('./garply', { basedir: dir, 'package': { main: 'biz' } }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'garply/lib/index.js'));
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|         t.equal(pkg.main, './lib');
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|     });
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| 
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|     resolve('tiv', { basedir: dir + '/grux' }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'tiv/index.js'));
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|         t.equal(pkg, undefined);
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|     });
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| 
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|     resolve('tiv', { basedir: dir + '/grux', 'package': { main: 'grux' } }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'tiv/index.js'));
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|         t.equal(pkg.main, 'grux');
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|     });
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| 
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|     resolve('tiv', { basedir: dir + '/garply' }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'tiv/index.js'));
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|         t.equal(pkg, undefined);
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|     });
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| 
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|     resolve('tiv', { basedir: dir + '/garply', 'package': { main: './lib' } }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'tiv/index.js'));
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|         t.equal(pkg.main, './lib');
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|     });
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| 
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|     resolve('grux', { basedir: dir + '/tiv' }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'grux/index.js'));
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|         t.equal(pkg, undefined);
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|     });
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| 
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|     resolve('grux', { basedir: dir + '/tiv', 'package': { main: 'tiv' } }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'grux/index.js'));
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|         t.equal(pkg.main, 'tiv');
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|     });
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| 
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|     resolve('garply', { basedir: dir + '/tiv' }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'garply/lib/index.js'));
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|         t.equal(pkg.main, './lib');
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|     });
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| 
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|     resolve('garply', { basedir: dir + '/tiv', 'package': { main: 'tiv' } }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'garply/lib/index.js'));
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|         t.equal(pkg.main, './lib');
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|     });
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| });
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| 
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| test('quux', function (t) {
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|     t.plan(2);
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|     var dir = path.join(__dirname, 'resolver/quux');
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| 
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|     resolve('./foo', { basedir: dir, 'package': { main: 'quux' } }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'foo/index.js'));
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|         t.equal(pkg.main, 'quux');
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|     });
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| });
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| 
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| test('normalize', function (t) {
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|     t.plan(2);
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|     var dir = path.join(__dirname, 'resolver/biz/node_modules/grux');
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| 
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|     resolve('../grux', { basedir: dir }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'index.js'));
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|         t.equal(pkg, undefined);
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|     });
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| });
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| 
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| test('cup', function (t) {
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|     t.plan(5);
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|     var dir = path.join(__dirname, 'resolver');
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| 
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|     resolve('./cup', { basedir: dir, extensions: ['.js', '.coffee'] }, function (err, res) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'cup.coffee'));
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|     });
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| 
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|     resolve('./cup.coffee', { basedir: dir }, function (err, res) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'cup.coffee'));
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|     });
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| 
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|     resolve('./cup', { basedir: dir, extensions: ['.js'] }, function (err, res) {
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|         t.equal(err.message, "Cannot find module './cup' from '" + path.resolve(dir) + "'");
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|         t.equal(err.code, 'MODULE_NOT_FOUND');
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|     });
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| 
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|     // Test that filename is reported as the "from" value when passed.
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|     resolve('./cup', { basedir: dir, extensions: ['.js'], filename: path.join(dir, 'cupboard.js') }, function (err, res) {
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|         t.equal(err.message, "Cannot find module './cup' from '" + path.join(dir, 'cupboard.js') + "'");
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|     });
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| });
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| 
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| test('mug', function (t) {
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|     t.plan(3);
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|     var dir = path.join(__dirname, 'resolver');
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| 
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|     resolve('./mug', { basedir: dir }, function (err, res) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'mug.js'));
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|     });
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| 
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|     resolve('./mug', { basedir: dir, extensions: ['.coffee', '.js'] }, function (err, res) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, '/mug.coffee'));
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|     });
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| 
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|     resolve('./mug', { basedir: dir, extensions: ['.js', '.coffee'] }, function (err, res) {
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|         t.equal(res, path.join(dir, '/mug.js'));
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|     });
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| });
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| 
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| test('other path', function (t) {
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|     t.plan(6);
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|     var resolverDir = path.join(__dirname, 'resolver');
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|     var dir = path.join(resolverDir, 'bar');
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|     var otherDir = path.join(resolverDir, 'other_path');
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| 
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|     resolve('root', { basedir: dir, paths: [otherDir] }, function (err, res) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(resolverDir, 'other_path/root.js'));
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|     });
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| 
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|     resolve('lib/other-lib', { basedir: dir, paths: [otherDir] }, function (err, res) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(resolverDir, 'other_path/lib/other-lib.js'));
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|     });
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| 
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|     resolve('root', { basedir: dir }, function (err, res) {
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|         t.equal(err.message, "Cannot find module 'root' from '" + path.resolve(dir) + "'");
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|         t.equal(err.code, 'MODULE_NOT_FOUND');
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|     });
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| 
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|     resolve('zzz', { basedir: dir, paths: [otherDir] }, function (err, res) {
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|         t.equal(err.message, "Cannot find module 'zzz' from '" + path.resolve(dir) + "'");
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|         t.equal(err.code, 'MODULE_NOT_FOUND');
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|     });
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| });
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| 
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| test('path iterator', function (t) {
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|     t.plan(2);
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| 
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|     var resolverDir = path.join(__dirname, 'resolver');
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| 
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|     var exactIterator = function (x, start, getPackageCandidates, opts) {
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|         return [path.join(resolverDir, x)];
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|     };
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| 
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|     resolve('baz', { packageIterator: exactIterator }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(resolverDir, 'baz/quux.js'));
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|         t.equal(pkg && pkg.name, 'baz');
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|     });
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| });
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| 
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| test('incorrect main', function (t) {
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|     t.plan(1);
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| 
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|     var resolverDir = path.join(__dirname, 'resolver');
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|     var dir = path.join(resolverDir, 'incorrect_main');
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| 
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|     resolve('./incorrect_main', { basedir: resolverDir }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'index.js'));
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|     });
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| });
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| 
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| test('missing index', function (t) {
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|     t.plan(2);
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| 
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|     var resolverDir = path.join(__dirname, 'resolver');
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|     resolve('./missing_index', { basedir: resolverDir }, function (err, res, pkg) {
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|         t.ok(err instanceof Error);
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|         t.equal(err && err.code, 'MODULE_NOT_FOUND', 'error has correct error code');
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|     });
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| });
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| 
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| test('missing main', function (t) {
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|     t.plan(1);
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| 
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|     var resolverDir = path.join(__dirname, 'resolver');
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| 
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|     resolve('./missing_main', { basedir: resolverDir }, function (err, res, pkg) {
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|         t.equal(err && err.code, 'MODULE_NOT_FOUND', 'error has correct error code');
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|     });
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| });
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| 
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| test('null main', function (t) {
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|     t.plan(1);
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| 
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|     var resolverDir = path.join(__dirname, 'resolver');
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| 
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|     resolve('./null_main', { basedir: resolverDir }, function (err, res, pkg) {
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|         t.equal(err && err.code, 'MODULE_NOT_FOUND', 'error has correct error code');
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|     });
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| });
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| 
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| test('main: false', function (t) {
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|     t.plan(2);
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| 
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|     var basedir = path.join(__dirname, 'resolver');
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|     var dir = path.join(basedir, 'false_main');
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|     resolve('./false_main', { basedir: basedir }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(
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|             res,
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|             path.join(dir, 'index.js'),
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|             '`"main": false`: resolves to `index.js`'
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|         );
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|         t.deepEqual(pkg, {
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|             name: 'false_main',
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|             main: false
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|         });
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|     });
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| });
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| 
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| test('without basedir', function (t) {
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|     t.plan(1);
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| 
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|     var dir = path.join(__dirname, 'resolver/without_basedir');
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|     var tester = require(path.join(dir, 'main.js')); // eslint-disable-line global-require
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| 
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|     tester(t, function (err, res, pkg) {
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|         if (err) {
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|             t.fail(err);
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|         } else {
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|             t.equal(res, path.join(dir, 'node_modules/mymodule.js'));
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|         }
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|     });
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| });
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| 
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| test('#52 - incorrectly resolves module-paths like "./someFolder/" when there is a file of the same name', function (t) {
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|     t.plan(2);
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| 
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|     var dir = path.join(__dirname, 'resolver');
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| 
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|     resolve('./foo', { basedir: path.join(dir, 'same_names') }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'same_names/foo.js'));
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|     });
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| 
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|     resolve('./foo/', { basedir: path.join(dir, 'same_names') }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'same_names/foo/index.js'));
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|     });
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| });
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| 
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| test('#211 - incorrectly resolves module-paths like "." when from inside a folder with a sibling file of the same name', function (t) {
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|     t.plan(2);
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| 
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|     var dir = path.join(__dirname, 'resolver');
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| 
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|     resolve('./', { basedir: path.join(dir, 'same_names/foo') }, function (err, res, pkg) {
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|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'same_names/foo/index.js'));
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|     });
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| 
 | |
|     resolve('.', { basedir: path.join(dir, 'same_names/foo') }, function (err, res, pkg) {
 | |
|         if (err) t.fail(err);
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|         t.equal(res, path.join(dir, 'same_names/foo/index.js'));
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|     });
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| });
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| 
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| test('async: #121 - treating an existing file as a dir when no basedir', function (t) {
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|     var testFile = path.basename(__filename);
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| 
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|     t.test('sanity check', function (st) {
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|         st.plan(1);
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|         resolve('./' + testFile, function (err, res, pkg) {
 | |
|             if (err) t.fail(err);
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|             st.equal(res, __filename, 'sanity check');
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|         });
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|     });
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| 
 | |
|     t.test('with a fake directory', function (st) {
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|         st.plan(4);
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| 
 | |
|         resolve('./' + testFile + '/blah', function (err, res, pkg) {
 | |
|             st.ok(err, 'there is an error');
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|             st.notOk(res, 'no result');
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| 
 | |
|             st.equal(err && err.code, 'MODULE_NOT_FOUND', 'error code matches require.resolve');
 | |
|             st.equal(
 | |
|                 err && err.message,
 | |
|                 'Cannot find module \'./' + testFile + '/blah\' from \'' + __dirname + '\'',
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|                 'can not find nonexistent module'
 | |
|             );
 | |
|             st.end();
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|         });
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|     });
 | |
| 
 | |
|     t.end();
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| });
 | |
| 
 | |
| test('async dot main', function (t) {
 | |
|     var start = new Date();
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|     t.plan(3);
 | |
|     resolve('./resolver/dot_main', function (err, ret) {
 | |
|         t.notOk(err);
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|         t.equal(ret, path.join(__dirname, 'resolver/dot_main/index.js'));
 | |
|         t.ok(new Date() - start < 50, 'resolve.sync timedout');
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|         t.end();
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|     });
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| });
 | |
| 
 | |
| test('async dot slash main', function (t) {
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|     var start = new Date();
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|     t.plan(3);
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|     resolve('./resolver/dot_slash_main', function (err, ret) {
 | |
|         t.notOk(err);
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|         t.equal(ret, path.join(__dirname, 'resolver/dot_slash_main/index.js'));
 | |
|         t.ok(new Date() - start < 50, 'resolve.sync timedout');
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|         t.end();
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|     });
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| });
 | |
| 
 | |
| test('not a directory', function (t) {
 | |
|     t.plan(6);
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|     var path = './foo';
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|     resolve(path, { basedir: __filename }, function (err, res, pkg) {
 | |
|         t.ok(err, 'a non-directory errors');
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|         t.equal(arguments.length, 1);
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|         t.equal(res, undefined);
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|         t.equal(pkg, undefined);
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| 
 | |
|         t.equal(err && err.message, 'Cannot find module \'' + path + '\' from \'' + __filename + '\'');
 | |
|         t.equal(err && err.code, 'MODULE_NOT_FOUND');
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|     });
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| });
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| 
 | |
| test('non-string "main" field in package.json', function (t) {
 | |
|     t.plan(5);
 | |
| 
 | |
|     var dir = path.join(__dirname, 'resolver');
 | |
|     resolve('./invalid_main', { basedir: dir }, function (err, res, pkg) {
 | |
|         t.ok(err, 'errors on non-string main');
 | |
|         t.equal(err.message, 'package “invalid_main” `main` must be a string');
 | |
|         t.equal(err.code, 'INVALID_PACKAGE_MAIN');
 | |
|         t.equal(res, undefined, 'res is undefined');
 | |
|         t.equal(pkg, undefined, 'pkg is undefined');
 | |
|     });
 | |
| });
 | |
| 
 | |
| test('non-string "main" field in package.json', function (t) {
 | |
|     t.plan(5);
 | |
| 
 | |
|     var dir = path.join(__dirname, 'resolver');
 | |
|     resolve('./invalid_main', { basedir: dir }, function (err, res, pkg) {
 | |
|         t.ok(err, 'errors on non-string main');
 | |
|         t.equal(err.message, 'package “invalid_main” `main` must be a string');
 | |
|         t.equal(err.code, 'INVALID_PACKAGE_MAIN');
 | |
|         t.equal(res, undefined, 'res is undefined');
 | |
|         t.equal(pkg, undefined, 'pkg is undefined');
 | |
|     });
 | |
| });
 | |
| 
 | |
| test('browser field in package.json', function (t) {
 | |
|     t.plan(3);
 | |
| 
 | |
|     var dir = path.join(__dirname, 'resolver');
 | |
|     resolve(
 | |
|         './browser_field',
 | |
|         {
 | |
|             basedir: dir,
 | |
|             packageFilter: function packageFilter(pkg) {
 | |
|                 if (pkg.browser) {
 | |
|                     pkg.main = pkg.browser; // eslint-disable-line no-param-reassign
 | |
|                     delete pkg.browser; // eslint-disable-line no-param-reassign
 | |
|                 }
 | |
|                 return pkg;
 | |
|             }
 | |
|         },
 | |
|         function (err, res, pkg) {
 | |
|             if (err) t.fail(err);
 | |
|             t.equal(res, path.join(dir, 'browser_field', 'b.js'));
 | |
|             t.equal(pkg && pkg.main, 'b');
 | |
|             t.equal(pkg && pkg.browser, undefined);
 | |
|         }
 | |
|     );
 | |
| });
 | |
| 
 | |
| test('absolute paths', function (t) {
 | |
|     t.plan(4);
 | |
| 
 | |
|     var extensionless = __filename.slice(0, -path.extname(__filename).length);
 | |
| 
 | |
|     resolve(__filename, function (err, res) {
 | |
|         t.equal(
 | |
|             res,
 | |
|             __filename,
 | |
|             'absolute path to this file resolves'
 | |
|         );
 | |
|     });
 | |
|     resolve(extensionless, function (err, res) {
 | |
|         t.equal(
 | |
|             res,
 | |
|             __filename,
 | |
|             'extensionless absolute path to this file resolves'
 | |
|         );
 | |
|     });
 | |
|     resolve(__filename, { basedir: process.cwd() }, function (err, res) {
 | |
|         t.equal(
 | |
|             res,
 | |
|             __filename,
 | |
|             'absolute path to this file with a basedir resolves'
 | |
|         );
 | |
|     });
 | |
|     resolve(extensionless, { basedir: process.cwd() }, function (err, res) {
 | |
|         t.equal(
 | |
|             res,
 | |
|             __filename,
 | |
|             'extensionless absolute path to this file with a basedir resolves'
 | |
|         );
 | |
|     });
 | |
| });
 | |
| 
 | |
| var malformedDir = path.join(__dirname, 'resolver/malformed_package_json');
 | |
| test('malformed package.json', { skip: !fs.existsSync(malformedDir) }, function (t) {
 | |
|     /* eslint operator-linebreak: ["error", "before"], function-paren-newline: "off" */
 | |
|     t.plan(
 | |
|         (3 * 3) // 3 sets of 3 assertions in the final callback
 | |
|         + 2 // 1 readPackage call with malformed package.json
 | |
|     );
 | |
| 
 | |
|     var basedir = malformedDir;
 | |
|     var expected = path.join(basedir, 'index.js');
 | |
| 
 | |
|     resolve('./index.js', { basedir: basedir }, function (err, res, pkg) {
 | |
|         t.error(err, 'no error');
 | |
|         t.equal(res, expected, 'malformed package.json is silently ignored');
 | |
|         t.equal(pkg, undefined, 'malformed package.json gives an undefined `pkg` argument');
 | |
|     });
 | |
| 
 | |
|     resolve(
 | |
|         './index.js',
 | |
|         {
 | |
|             basedir: basedir,
 | |
|             packageFilter: function (pkg, pkgfile, dir) {
 | |
|                 t.fail('should not reach here');
 | |
|             }
 | |
|         },
 | |
|         function (err, res, pkg) {
 | |
|             t.error(err, 'with packageFilter: no error');
 | |
|             t.equal(res, expected, 'with packageFilter: malformed package.json is silently ignored');
 | |
|             t.equal(pkg, undefined, 'with packageFilter: malformed package.json gives an undefined `pkg` argument');
 | |
|         }
 | |
|     );
 | |
| 
 | |
|     resolve(
 | |
|         './index.js',
 | |
|         {
 | |
|             basedir: basedir,
 | |
|             readPackage: function (readFile, pkgfile, cb) {
 | |
|                 t.equal(pkgfile, path.join(basedir, 'package.json'), 'readPackageSync: `pkgfile` is package.json path');
 | |
|                 readFile(pkgfile, function (err, result) {
 | |
|                     try {
 | |
|                         cb(null, JSON.parse(result));
 | |
|                     } catch (e) {
 | |
|                         t.ok(e instanceof SyntaxError, 'readPackage: malformed package.json parses as a syntax error');
 | |
|                         cb(null);
 | |
|                     }
 | |
|                 });
 | |
|             }
 | |
|         },
 | |
|         function (err, res, pkg) {
 | |
|             t.error(err, 'with readPackage: no error');
 | |
|             t.equal(res, expected, 'with readPackage: malformed package.json is silently ignored');
 | |
|             t.equal(pkg, undefined, 'with readPackage: malformed package.json gives an undefined `pkg` argument');
 | |
|         }
 | |
|     );
 | |
| });
 |