.

node_modules/resolve/test/symlinks.js

@@ -0,0 +1,56 @@
+var path = require('path');
+var fs = require('fs');
+var test = require('tape');
+var resolve = require('../');
+
+var symlinkDir = path.join(__dirname, 'resolver', 'symlinked', 'symlink');
+try {
+    fs.unlinkSync(symlinkDir);
+} catch (err) {}
+try {
+    fs.symlinkSync('./_/symlink_target', symlinkDir, 'dir');
+} catch (err) {
+    // if fails then it is probably on Windows and lets try to create a junction
+    fs.symlinkSync(path.join(__dirname, 'resolver', 'symlinked', '_', 'symlink_target') + '\\', symlinkDir, 'junction');
+}
+
+test('symlink', function (t) {
+    t.plan(2);
+
+    resolve('foo', { basedir: symlinkDir, preserveSymlinks: false }, function (err, res, pkg) {
+        t.error(err);
+        t.equal(res, path.join(__dirname, 'resolver', 'symlinked', '_', 'node_modules', 'foo.js'));
+    });
+});
+
+test('sync symlink when preserveSymlinks = true', function (t) {
+    t.plan(4);
+
+    resolve('foo', { basedir: symlinkDir }, function (err, res, pkg) {
+        t.ok(err, 'there is an error');
+        t.notOk(res, 'no result');
+
+        t.equal(err && err.code, 'MODULE_NOT_FOUND', 'error code matches require.resolve');
+        t.equal(
+            err && err.message,
+            'Cannot find module \'foo\' from \'' + symlinkDir + '\'',
+            'can not find nonexistent module'
+        );
+    });
+});
+
+test('sync symlink', function (t) {
+    var start = new Date();
+    t.doesNotThrow(function () {
+        t.equal(resolve.sync('foo', { basedir: symlinkDir, preserveSymlinks: false }), path.join(__dirname, 'resolver', 'symlinked', '_', 'node_modules', 'foo.js'));
+    });
+    t.ok(new Date() - start < 50, 'resolve.sync timedout');
+    t.end();
+});
+
+test('sync symlink when preserveSymlinks = true', function (t) {
+    t.throws(function () {
+        resolve.sync('foo', { basedir: symlinkDir });
+    }, /Cannot find module 'foo'/);
+    t.end();
+});