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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| 15 | final class CashPaymentTest extends TestCase |
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| 16 | { |
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| 17 | /** |
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| 18 | * @test |
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| 19 | * @dataProvider getAmounts |
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| 20 | */ |
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| 21 | public function changedAmount($shouldPay, $payed) |
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| 29 | |||
| 30 | View Code Duplication | public function getAmounts(): array |
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| 39 | } |
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| 40 |