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