SimpleReflection::classOrInterfaceExists PHP Method

    public function classOrInterfaceExists()
    {
        return $this->classOrInterfaceExistsWithAutoload($this->interface, true);
    }

 function testClassNonExistence()
 {
     $reflection = new SimpleReflection('UnknownThing');
     $this->assertFalse($reflection->classOrInterfaceExists());
     $this->assertFalse($reflection->classOrInterfaceExistsSansAutoload());
 }