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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| 7 | class FetcherTest extends \PHPUnit_Framework_TestCase { | 
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| 8 | |||
| 9 | protected $httpClient;  | 
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| 10 | protected $locator;  | 
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| 11 | protected $configReader;  | 
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| 12 | |||
| 13 | 	public function setUp(){ | 
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| 14 | 		$this->httpClient = $this->getMockBuilder('GuzzleHttp\Client') | 
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| 15 | ->disableOriginalConstructor()  | 
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| 16 | ->getMock()  | 
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| 17 | ;  | 
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| 18 | 		$this->locator = $this->getMockBuilder('Owncloud\Updater\Utils\Locator') | 
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| 19 | ->disableOriginalConstructor()  | 
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| 20 | ->getMock()  | 
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| 21 | ;  | 
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| 22 | 		$this->configReader = $this->getMockBuilder('Owncloud\Updater\Utils\ConfigReader') | 
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| 23 | ->disableOriginalConstructor()  | 
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| 24 | ->getMock()  | 
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| 25 | ;  | 
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| 26 | |||
| 27 | $map = [  | 
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| 28 | ['apps.core.installedat', '100500'],  | 
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| 29 | ['apps.core.lastupdatedat', '500100'],  | 
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| 30 | ['apps.core.OC_Channel', 'stable'],  | 
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| 31 | ['system.version', '8.2.0.3'],  | 
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| 32 | ];  | 
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| 33 | |||
| 34 | $this->configReader  | 
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| 35 | 				->method('getByPath') | 
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| 36 | ->will($this->returnValueMap($map))  | 
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| 37 | ;  | 
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| 38 | $this->configReader  | 
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| 39 | 				->method('getEdition') | 
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| 40 | 				->willReturn('') | 
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| 41 | ;  | 
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| 42 | $this->locator  | 
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| 43 | 				->method('getBuild') | 
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| 44 | 				->willReturn('2015-03-09T13:29:12+00:00 8db687a1cddd13c2a6fb6b16038d20275bd31e17') | 
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| 45 | ;  | 
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| 46 | }  | 
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| 47 | |||
| 48 | 	public function testGetValidFeed(){ | 
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| 49 | 		$responseMock = $this->getResponseMock('<?xml version="1.0"?><owncloud>  <version>8.1.3.0</version><versionstring>ownCloud 8.1.3</versionstring> | 
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| 50 | <url>https://download.owncloud.org/community/owncloud-8.1.3.zip</url>  | 
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| 51 | <web>https://doc.owncloud.org/server/8.1/admin_manual/maintenance/upgrade.html</web>  | 
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| 52 | </owncloud>');  | 
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| 53 | $this->httpClient  | 
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| 54 | 				->method('get') | 
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| 55 | ->willReturn($responseMock)  | 
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| 56 | ;  | 
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| 57 | $fetcher = new Fetcher($this->httpClient, $this->locator, $this->configReader);  | 
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| 58 | $feed = $fetcher->getFeed();  | 
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| 59 | 		$this->assertInstanceOf('Owncloud\Updater\Utils\Feed', $feed); | 
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| 60 | $this->assertTrue($feed->isValid());  | 
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| 61 | 		$this->assertEquals('8.1.3.0', $feed->getVersion()); | 
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| 62 | }  | 
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| 63 | |||
| 64 | |||
| 65 | 	public function testGetEmptyFeed(){ | 
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| 66 | 		$responseMock = $this->getResponseMock(''); | 
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| 67 | $this->httpClient  | 
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| 68 | 				->method('get') | 
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| 69 | ->willReturn($responseMock)  | 
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| 70 | ;  | 
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| 71 | $fetcher = new Fetcher($this->httpClient, $this->locator, $this->configReader);  | 
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| 72 | $feed = $fetcher->getFeed();  | 
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| 73 | 		$this->assertInstanceOf('Owncloud\Updater\Utils\Feed', $feed); | 
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| 74 | $this->assertFalse($feed->isValid());  | 
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| 75 | }  | 
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| 76 | |||
| 77 | 	public function testGetGarbageFeed(){ | 
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| 78 | 		$responseMock = $this->getResponseMock('<!DOCTYPE html><html lang="en"> <head><meta charset="utf-8">'); | 
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| 79 | $this->httpClient  | 
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| 80 | 				->method('get') | 
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| 81 | ->willReturn($responseMock)  | 
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| 82 | ;  | 
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| 83 | $fetcher = new Fetcher($this->httpClient, $this->locator, $this->configReader);  | 
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| 84 | $feed = $fetcher->getFeed();  | 
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| 85 | 		$this->assertInstanceOf('Owncloud\Updater\Utils\Feed', $feed); | 
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| 86 | $this->assertFalse($feed->isValid());  | 
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| 87 | }  | 
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| 88 | |||
| 89 | 	private function getResponseMock($body){ | 
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| 90 | 		$bodyMock = $this->getMockBuilder('Owncloud\Updater\Tests\StreamInterface') | 
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| 91 | ->disableOriginalConstructor()  | 
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| 92 | ->getMock()  | 
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| 93 | ;  | 
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| 94 | $bodyMock  | 
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| 95 | ->expects($this->any())  | 
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| 96 | 				->method('getContents') | 
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| 97 | ->willReturn($body)  | 
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| 98 | ;  | 
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| 99 | |||
| 100 | 		$responseMock = $this->getMockBuilder('GuzzleHttp\Message\ResponseInterface') | 
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| 101 | ->disableOriginalConstructor()  | 
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| 102 | ->getMock()  | 
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| 103 | ;  | 
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| 104 | $responseMock  | 
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| 105 | ->expects($this->any())  | 
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| 106 | 				->method('getStatusCode') | 
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| 107 | ->willReturn(200)  | 
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| 108 | ;  | 
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| 109 | $responseMock  | 
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| 110 | ->expects($this->any())  | 
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| 111 | 				->method('getBody') | 
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| 112 | ->willReturn($bodyMock)  | 
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| 113 | ;  | 
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| 114 | return $responseMock;  | 
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| 115 | }  | 
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| 116 | |||
| 117 | }  | 
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| 118 |