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 | ||
| 3 | class GalleryImageShortCodeHandlerTest extends SapphireTest { | ||
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| 4 | protected static $fixture_file = 'ss3gallery/tests/ss3gallery.yml'; | ||
| 5 | |||
| 6 | View Code Duplication | public function testValidImage() | |
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| 26 | |||
| 27 | View Code Duplication | public function testNonExistentImage() | |
| 41 | } | ||
| 42 | 
You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.