public function testIsSunk()
{
$mast = 'B2';
$allShips = new CoordsCollection(['B1', 'B2', 'B3']);
$allShots = new CoordsCollection(['B1', 'B3']);
$this->assertTrue($this->battleManager->isSunk($mast, $allShips, $allShots));
$mast = 'B3';
$allShips = new CoordsCollection(['B1', 'B2', 'B3', 'B4']);
$allShots = new CoordsCollection(['B1', 'B2', 'B4']);
$this->assertTrue($this->battleManager->isSunk($mast, $allShips, $allShots));
$mast = 'B3';
$allShips = new CoordsCollection(['B3']);
$allShots = new CoordsCollection([]);
$this->assertTrue($this->battleManager->isSunk($mast, $allShips, $allShots));
$mast = 'B3';
$allShips = new CoordsCollection(['B1', 'B2', 'B3', 'B4']);
$allShots = new CoordsCollection(['B1', 'B4']);
$this->assertFalse($this->battleManager->isSunk($mast, $allShips, $allShots));
}
