public void WestCommand_GetNewPoint_ShouldReturn_Null_ForInvalidPosition()
{
var command = new WestCommand()
{
Limit = 10
};
var data = command.GetNewPoint(0, 10);
Assert.Null(data);
}
public void WestCommand_GetNewPoint_ShouldReturn_CorrectData_ForValidPosition()
{
var command = new WestCommand()
{
Limit = 10
};
var data = command.GetNewPoint(9, 5);
Assert.NotNull(data);
Assert.Equal(8, data.X);
Assert.Equal(5, data.Y);
}
public void ShouldNotExecuteOutsideLimitsWhenOnNegativePosition()
{
var startingPosition = new Position(-2, 0);
const int steps = 5;
const int positionLimit = 4;
var command = new WestCommand(steps);
var(lastPosition, positions) = command.Execute(startingPosition, positionLimit);
var expectedLastPosition = new Position(-4, 0);
var expectedPositions = new List <Position>
{
new Position(-2, 0),
new Position(-3, 0),
new Position(-4, 0)
};
lastPosition.Should().Be(expectedLastPosition);
positions.Should().BeEquivalentTo(expectedPositions);
}
public void ShouldExecute()
{
var startingPosition = new Position(2, -3);
const int steps = 3;
const int positionLimit = 10;
var command = new WestCommand(steps);
var(lastPosition, positions) = command.Execute(startingPosition, positionLimit);
var expectedLastPosition = new Position(-1, -3);
var expectedPositions = new List <Position>
{
new Position(2, -3),
new Position(1, -3),
new Position(0, -3),
new Position(-1, -3)
};
lastPosition.Should().Be(expectedLastPosition);
positions.Should().BeEquivalentTo(expectedPositions);
}