Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
| 1 | <?php  | 
            ||
| 15 | class EncoderTest extends \PHPUnit_Framework_TestCase  | 
            ||
| 16 | { | 
            ||
| 17 | /**  | 
            ||
| 18 | * @param string $data  | 
            ||
| 19 | * @param array $source  | 
            ||
| 20 | *  | 
            ||
| 21 | * @test  | 
            ||
| 22 | * @dataProvider testSetProvider  | 
            ||
| 23 | */  | 
            ||
| 24 | public function willDecodeTestCasesFromJwtDotIo($source, $data)  | 
            ||
| 29 | |||
| 30 | /**  | 
            ||
| 31 | * @test  | 
            ||
| 32 | * @expectedException \RuntimeException  | 
            ||
| 33 | */  | 
            ||
| 34 | public function willThrowExceptionWhenJsonDecodeFails()  | 
            ||
| 39 | |||
| 40 | /**  | 
            ||
| 41 | * @see http://jwt.io/  | 
            ||
| 42 | * @return array  | 
            ||
| 43 | */  | 
            ||
| 44 | View Code Duplication | public static function testSetProvider()  | 
            |
| 65 | }  | 
            ||
| 66 | 
It seems like the type of the argument is not accepted by the function/method which you are calling.
In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.
We suggest to add an explicit type cast like in the following example: