public function testSetAndGetConection() { $book = new Book($this->conn); $this->assertSame($this->conn, $book->getConnection()); $conn = $this->getMockBuilder('Doctrine\\DBAL\\Connection')->disableOriginalConstructor()->getMock(); $this->assertSame($book, $book->setConnection($conn)); $this->assertSame($conn, $book->getConnection()); }