/**
  * Test basic methods.
  * @covers Rentalhost\VanillaValidation\ValidationRules::__callStatic
  */
 public function testBasic()
 {
     static::assertTrue(ValidationRules::has('required'));
     static::assertFalse(ValidationRules::has('leftTrim'));
     ValidationRules::define('leftTrim', Test\LeftTrimAction::class);
     static::assertTrue(ValidationRules::has('leftTrim'));
 }