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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Tests\AppBundle\Controller;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class UserControllerTest extends WebTestCase  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                { | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public function testListAction() { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $client = static::createClient();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $crawler = $client->request('GET', '/users'); | 
            
                            
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                        $this->assertEquals('302', $client->getResponse()->getStatusCode()); | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $crawler = $client->request('GET', '/login'); | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $form = $crawler->selectButton('Login')->form(); | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $client->submit($form, ['_username' => '[email protected]', '_password' => 'admin']);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $crawler = $client->request('GET', '/users'); | 
            
                            
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                        $this->assertEquals('200', $client->getResponse()->getStatusCode()); | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //    public function testAddAction()  | 
            
                            
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                //    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $user = new User();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $user -> setEmail('[email protected]'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $user -> setLastName('Test'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $user -> setFirstName('Test'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $user -> setPlainPassword('Test'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $this->assertInstanceOf(User::class, $user);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //    public function testActivationAction()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $user = new User();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $user -> setEmail('[email protected]'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $user -> setLastName('Test'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $user -> setFirstName('Test'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $user -> setPlainPassword('Test'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $user -> setEnabled(true);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $this->assertEquals(true, $user->isEnabled());  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //    public function testEditAction()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $user = new User();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $user -> setEmail('[email protected]'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $user -> setLastName('Test'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $user -> setFirstName('Test'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $user -> setPlainPassword('Test'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $user -> setEmail('[email protected]'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $user -> setLastName('editedTest'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $user -> setFirstName('editedTest'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $user -> setPlainPassword('editedTest'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                //        $this->assertInstanceOf(User::class, $user);  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                //    }  | 
            
            
                                                        
            
                                    
            
            
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                }  | 
            
            
                        
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.