var path = require('path'); var fs = require('fs'); var test = require('tape'); var map = require('array.prototype.map'); var resolve = require('../'); var symlinkDir = path.join(__dirname, 'resolver', 'symlinked', 'symlink'); var packageDir = path.join(__dirname, 'resolver', 'symlinked', '_', 'node_modules', 'package'); var modADir = path.join(__dirname, 'symlinks', 'source', 'node_modules', 'mod-a'); var symlinkModADir = path.join(__dirname, 'symlinks', 'dest', 'node_modules', 'mod-a'); try { fs.unlinkSync(symlinkDir); } catch (err) {} try { fs.unlinkSync(packageDir); } catch (err) {} try { fs.unlinkSync(modADir); } catch (err) {} try { fs.unlinkSync(symlinkModADir); } catch (err) {} try { fs.symlinkSync('./_/symlink_target', symlinkDir, 'dir'); } catch (err) { if (err.code !== 'EEXIST') { // 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'); } } try { fs.symlinkSync('../../package', packageDir, 'dir'); } catch (err) { // if fails then it is probably on Windows and lets try to create a junction fs.symlinkSync(path.join(__dirname, '..', '..', 'package') + '\\', packageDir, 'junction'); } try { fs.symlinkSync('../../source/node_modules/mod-a', symlinkModADir, 'dir'); } catch (err) { // if fails then it is probably on Windows and lets try to create a junction fs.symlinkSync(path.join(__dirname, '..', '..', 'source', 'node_modules', 'mod-a') + '\\', symlinkModADir, 'junction'); } test('symlink', function (t) { t.plan(2); resolve('foo', { basedir: symlinkDir }, 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, preserveSymlinks: true }, 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, preserveSymlinks: true }); }, /Cannot find module 'foo'/); t.end(); }); test('sync symlink from node_modules to other dir when preserveSymlinks = false', function (t) { var basedir = path.join(__dirname, 'resolver', 'symlinked', '_'); var fn = resolve.sync('package', { basedir: basedir, preserveSymlinks: false }); t.equal(fn, path.resolve(__dirname, 'resolver/symlinked/package/bar.js')); t.end(); }); test('async symlink from node_modules to other dir when preserveSymlinks = false', function (t) { t.plan(2); var basedir = path.join(__dirname, 'resolver', 'symlinked', '_'); resolve('package', { basedir: basedir, preserveSymlinks: false }, function (err, result) { t.notOk(err, 'no error'); t.equal(result, path.resolve(__dirname, 'resolver/symlinked/package/bar.js')); }); }); test('packageFilter', function (t) { function relative(x) { return path.relative(__dirname, x); } function testPackageFilter(preserveSymlinks) { return function (st) { st.plan(5); var destMain = 'symlinks/dest/node_modules/mod-a/index.js'; var destPkg = 'symlinks/dest/node_modules/mod-a/package.json'; var sourceMain = 'symlinks/source/node_modules/mod-a/index.js'; var sourcePkg = 'symlinks/source/node_modules/mod-a/package.json'; var destDir = path.join(__dirname, 'symlinks', 'dest'); var packageFilterPath = []; var actualPath = resolve.sync('mod-a', { basedir: destDir, preserveSymlinks: preserveSymlinks, packageFilter: function (pkg, pkgfile, dir) { packageFilterPath.push(pkgfile); } }); st.equal( relative(actualPath), path.normalize(preserveSymlinks ? destMain : sourceMain), 'sync: actual path is correct' ); st.deepEqual( map(packageFilterPath, relative), map(preserveSymlinks ? [destPkg, destPkg] : [sourcePkg, sourcePkg], path.normalize), 'sync: packageFilter pkgfile arg is correct' ); var asyncPackageFilterPath = []; resolve( 'mod-a', { basedir: destDir, preserveSymlinks: preserveSymlinks, packageFilter: function (pkg, pkgfile) { asyncPackageFilterPath.push(pkgfile); } }, function (err, actualPath) { st.error(err, 'no error'); st.equal( relative(actualPath), path.normalize(preserveSymlinks ? destMain : sourceMain), 'async: actual path is correct' ); st.deepEqual( map(asyncPackageFilterPath, relative), map( preserveSymlinks ? [destPkg, destPkg, destPkg] : [sourcePkg, sourcePkg, sourcePkg], path.normalize ), 'async: packageFilter pkgfile arg is correct' ); } ); }; } t.test('preserveSymlinks: false', testPackageFilter(false)); t.test('preserveSymlinks: true', testPackageFilter(true)); t.end(); });