var path = require('path'); var fs = require('fs'); var test = require('tape'); var resolve = require('../');

var symlinkDir = path.join(__dirname, 'resolver', 'symlinked', 'symlink'); var packageDir = path.join(__dirname, 'resolver', 'symlinked', '_', 'node_modules', 'package'); try {

fs.unlinkSync(symlinkDir);

} catch (err) {} try {

fs.unlinkSync(packageDir);

} 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');

} 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');

}

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();

});

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'));
    t.end();
});

});