public void WhenICallCalculateArea_ThenItReturnsTheCorrectArea()
{
double h = 2.0, w = 4.0, l = 5.0;
_squareRoom.Height = h;
_squareRoom.Length = l;
_squareRoom.Width = w;
var expectedArea =
((h * l) * 2) +
((h * w) * 2);
var area = _squareRoom.CalculateArea();
area.Should().Be(expectedArea);
}
public void WhenICallCalculateCoverage_ThenTinsRequiredIsCalculatedCorrectly()
{
_mockQueryHandler.Setup(x => x.Handle(It.IsAny <IPaintDetailsQuery>()))
.Returns(_paints);
double H = 1, W = 2, L = 3, coverage = 10.0;
var room = new SquareRoom()
{
Height = H, Width = W, Length = L
};
double expectedTinsRequired = room.CalculateArea() / coverage;
var rslt = _paintService.CalculateCoverage(room, 1);
rslt.TinsRequired.Should().Be(expectedTinsRequired);
}
public void WhenICallCalculateCoverageWithInvalidPaintId_ThenItThrowsArgumentException()
{
_mockQueryHandler.Setup(x => x.Handle(It.IsAny <IPaintDetailsQuery>()))
.Returns(_emptyPaints);
double H = 1, W = 2, L = 3, coverage = 10.0;
int paintId = 1;
var room = new SquareRoom()
{
Height = H, Width = W, Length = L
};
double expectedTinsRequired = room.CalculateArea() / coverage;
_paintService.Invoking(p => p.CalculateCoverage(room, paintId))
.Should().Throw <ArgumentException>();
}