public function testValidateAlphaSpace()
{
$this->assertTrue(Validator::isAlphaSpace('foo'));
$this->assertTrue(Validator::isAlphaSpace(' foo '));
$this->assertTrue(Validator::isAlphaSpace('foo bar'));
$this->assertTrue(Validator::isAlphaSpace('Über Größe'));
$this->assertFalse(Validator::isAlphaSpace(null));
$this->assertFalse(Validator::isAlphaSpace(0));
$this->assertFalse(Validator::isAlphaSpace('123456'));
$this->assertFalse(Validator::isAlphaSpace('abc-abc'));
$this->assertFalse(Validator::isAlphaSpace('foo?'));
$this->assertFalse(Validator::isAlphaSpace('😂'));
}