--- /dev/null
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+test('$NODE_PATH', function (t) {
+ t.plan(4);
+
+ resolve('aaa', {
+ paths: [
+ __dirname + '/node_path/x',
+ __dirname + '/node_path/y'
+ ],
+ basedir: __dirname,
+ }, function (err, res) {
+ t.equal(res, __dirname + '/node_path/x/aaa/index.js');
+ });
+
+ resolve('bbb', {
+ paths: [
+ __dirname + '/node_path/x',
+ __dirname + '/node_path/y'
+ ],
+ basedir: __dirname,
+ }, function (err, res) {
+ t.equal(res, __dirname + '/node_path/y/bbb/index.js');
+ });
+
+ resolve('ccc', {
+ paths: [
+ __dirname + '/node_path/x',
+ __dirname + '/node_path/y'
+ ],
+ basedir: __dirname,
+ }, function (err, res) {
+ t.equal(res, __dirname + '/node_path/x/ccc/index.js');
+ });
+
+ // ensure that relative paths still resolve against the
+ // regular `node_modules` correctly
+ resolve('tap', {
+ paths: [
+ 'node_path',
+ ],
+ basedir: 'node_path/x',
+ }, function (err, res) {
+ t.equal(res, path.resolve(__dirname, '..', 'node_modules/tap/lib/main.js'));
+ });
+});