public function testAlphaNumeric()
{
$this->assertTrue(Validator::isAlphaNumeric('frferrf'));
$this->assertTrue(Validator::isAlphaNumeric('12234'));
$this->assertTrue(Validator::isAlphaNumeric('1w2e2r3t4y'));
$this->assertTrue(Validator::isAlphaNumeric('0'));
$this->assertTrue(Validator::isAlphaNumeric('abçďĕʑʘπй'));
$this->assertTrue(Validator::isAlphaNumeric('ˇˆๆゞ'));
$this->assertTrue(Validator::isAlphaNumeric('אกあアꀀ豈'));
$this->assertTrue(Validator::isAlphaNumeric('Džᾈᾨ'));
$this->assertTrue(Validator::isAlphaNumeric('ÆΔΩЖÇ'));
$this->assertTrue(Validator::isAlphaNumeric('日本語でも'));
$this->assertTrue(Validator::isAlphaNumeric('をありがとうございました'));
$this->assertFalse(Validator::isAlphaNumeric('12 234'));
$this->assertFalse(Validator::isAlphaNumeric('dfd 234'));
$this->assertFalse(Validator::isAlphaNumeric('こんにちは!'));
$this->assertFalse(Validator::isAlphaNumeric("\n"));
$this->assertFalse(Validator::isAlphaNumeric("\t"));
$this->assertFalse(Validator::isAlphaNumeric("\r"));
$this->assertFalse(Validator::isAlphaNumeric(' '));
$this->assertFalse(Validator::isAlphaNumeric(''));
}