/**
  * throws exceptions if $item is not a PHP trait that exists
  *
  * this is a wrapper around our IsDefinedTrait check
  *
  * @param  mixed $item
  *         the container to check
  * @param  string $exception
  *         the class to use when throwing an exception
  * @return void
  */
 public static function check($item, $exception = E4xx_UnsupportedType::class)
 {
     // make sure we have a PHP class that exists
     if (!IsDefinedTrait::check($item)) {
         throw new $exception(SimpleType::from($item));
     }
 }
 /**
  * @covers ::__invoke
  * @covers ::check
  * @dataProvider provideScalarsToTest
  */
 public function testReturnsFalseForEverythingElse($data, $expectedResult)
 {
     // ----------------------------------------------------------------
     // setup your test
     $obj = new IsDefinedTrait();
     // ----------------------------------------------------------------
     // perform the change
     $actualResult1 = $obj($data);
     $actualResult2 = IsDefinedTrait::check($data);
     // ----------------------------------------------------------------
     // test the results
     $this->assertFalse($actualResult1);
     $this->assertFalse($actualResult2);
 }