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 |
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| 9 | class ServiceTest extends \PHPUnit_Framework_TestCase |
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| 10 | { |
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| 11 | private $_realGuzzleClient; |
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| 12 | |||
| 13 | public function setUp() |
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| 17 | |||
| 18 | /** |
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| 19 | * @test |
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| 20 | * @dataProvider constructWithInvalidArgumentsData |
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| 21 | * @expectedException Exception |
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| 22 | * @covers ::__construct |
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| 23 | */ |
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| 24 | public function constructWithInvalidArguments($pubkey, $privkey, $hashkey) |
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| 28 | |||
| 29 | public function constructWithInvalidArgumentsData() |
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| 42 | |||
| 43 | /** |
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| 44 | * @test |
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| 45 | * @covers ::__construct |
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| 46 | */ |
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| 47 | public function constructWithValidArguments() |
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| 52 | |||
| 53 | /** |
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| 54 | * @test |
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| 55 | * @uses \TraderInteractive\SolveMedia\Service::__construct |
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| 56 | * @covers ::getHtml |
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| 57 | */ |
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| 58 | public function getHtmlDefault() |
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| 69 | |||
| 70 | /** |
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| 71 | * @test |
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| 72 | * @uses \TraderInteractive\SolveMedia\Service::__construct |
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| 73 | * @covers ::getHtml |
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| 74 | */ |
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| 75 | public function getHtmlWithArguments() |
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| 82 | |||
| 83 | /** |
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| 84 | * @test |
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| 85 | * @uses \TraderInteractive\SolveMedia\Service::__construct |
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| 86 | * @dataProvider checkAnswerNoRemoteIpData |
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| 87 | * @expectedException Exception |
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| 88 | * @covers ::checkAnswer |
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| 89 | */ |
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| 90 | public function checkAnswerNoRemoteIp($remoteIp) |
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| 95 | |||
| 96 | public function checkAnswerNoRemoteIpData() |
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| 103 | |||
| 104 | /** |
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| 105 | * @test |
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| 106 | * @uses \TraderInteractive\SolveMedia\Service::__construct |
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| 107 | * @uses \TraderInteractive\SolveMedia\Response::<public> |
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| 108 | * @dataProvider checkAnswerEmptyArgumentsData |
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| 109 | * @covers ::checkAnswer |
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| 110 | */ |
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| 111 | public function checkAnswerEmptyArguments($challenge, $response) |
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| 120 | |||
| 121 | public function checkAnswerEmptyArgumentsData() |
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| 134 | |||
| 135 | /** |
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| 136 | * @test |
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| 137 | * @uses \TraderInteractive\SolveMedia\Service::__construct |
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| 138 | * @uses \TraderInteractive\SolveMedia\Response::__construct |
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| 139 | * @uses \TraderInteractive\SolveMedia\Response::valid |
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| 140 | * @uses \TraderInteractive\SolveMedia\Response::getMessage |
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| 141 | * @dataProvider checkAnswerErrorResponseData |
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| 142 | * @covers ::checkAnswer |
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| 143 | */ |
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| 144 | View Code Duplication | public function checkAnswerErrorResponse($hashKey, GuzzleResponse $guzzleResponse, $message) |
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| 157 | |||
| 158 | public function checkAnswerErrorResponseData() |
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| 168 | |||
| 169 | /** |
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| 170 | * @test |
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| 171 | * @uses \TraderInteractive\SolveMedia\Service::__construct |
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| 172 | * @uses \TraderInteractive\SolveMedia\Response::__construct |
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| 173 | * @uses \TraderInteractive\SolveMedia\Response::valid |
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| 174 | * @dataProvider checkAnswerValidResponseData |
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| 175 | * @covers ::checkAnswer |
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| 176 | */ |
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| 177 | View Code Duplication | public function checkAnswerValidResponse($hashKey, GuzzleResponse $guzzleResponse) |
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| 189 | |||
| 190 | public function checkAnswerValidResponseData() |
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| 197 | |||
| 198 | /** |
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| 199 | * @test |
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| 200 | * @uses \TraderInteractive\SolveMedia\Service::__construct |
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| 201 | * @covers ::getSignupUrl |
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| 202 | */ |
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| 203 | public function getSignupUrl() |
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| 208 | } |
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| 209 |
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.