public void AssertThatPositionsAreParsedCorrectly(int vertical, int expected)
{
var positions = new List <Position>();
var position = new Position {
Horizontal = 0, Vertical = vertical
};
positions.Add(position);
var parsedPositions = movementService.ParseVerticalCoordinates(positions);
Assert.Equal(expected, parsedPositions[0].Vertical);
}