public function testEnumTypeWithCaseConversion()
 {
     $this->conn->setAttribute(PDO::ATTR_CASE, PDO::CASE_UPPER);
     $enum = new EnumTest();
     $enum->status = 'open';
     $this->assertEqual($enum->status, 'open');
     $enum->save();
     $this->assertEqual($enum->status, 'open');
     $enum->refresh();
     $this->assertEqual($enum->status, 'open');
     $enum->status = 'closed';
     $this->assertEqual($enum->status, 'closed');
     $enum->save();
     $this->assertEqual($enum->status, 'closed');
     $enum->refresh();
     $this->assertEqual($enum->status, 'closed');
     $this->conn->setAttribute(PDO::ATTR_CASE, PDO::CASE_NATURAL);
 }