/**
  * @test Implementation
  */
 public function removeDeletesIdentifierFromTagToIdentifiersSetWithMultipleEntries()
 {
     $this->setUpBackend();
     $this->setUpRedis();
     $firstIdentifier = 'identifier' . uniqid();
     $secondIdentifier = 'identifier' . uniqid();
     $tag = 'thisTag';
     $this->backend->set($firstIdentifier, 'data', array($tag));
     $this->backend->set($secondIdentifier, 'data', array($tag));
     $this->backend->remove($firstIdentifier);
     $tagToIdentifiersMemberArray = $this->redis->sMembers('tagIdents:' . $tag);
     $this->assertSame(array($secondIdentifier), $tagToIdentifiersMemberArray);
 }
 /**
  * @test
  */
 public function removeRemovesEntryFromCache()
 {
     for ($i = 0; $i < 10; $i++) {
         $this->backend->set('entry_' . $i, 'foo', array('tag1'));
     }
     $this->assertCount(10, $this->backend->findIdentifiersByTag('tag1'));
     $this->assertEquals('foo', $this->backend->get('entry_1'));
     $actualEntries = array();
     foreach ($this->backend as $key => $value) {
         $actualEntries[] = $key;
     }
     $this->assertCount(10, $actualEntries);
     $this->backend->remove('entry_3');
     $this->assertCount(9, $this->backend->findIdentifiersByTag('tag1'));
     $this->assertFalse($this->backend->get('entry_3'));
     $actualEntries = array();
     foreach ($this->backend as $key => $value) {
         $actualEntries[] = $key;
     }
     $this->assertCount(9, $actualEntries);
 }