public function testUserCanExtendWithCustomFunctions()
{
Arrays::extend('fooify', function ($array) {
return 'bar';
});
$this->assertEquals('bar', Arrays::fooify(array('foo')));
String::extend('unfooer', function ($string) {
return String::replace($string, 'foo', 'bar');
});
$this->assertEquals('bar', String::unfooer('foo'));
}
