public new void SetUp()
{
foreach (var testSize in RandomTestSizes)
{
CloudLayoutCreator.PutNextRectangle(testSize);
}
}
public void Should_EquallyStretchFigure_InBothAxis()
{
var stretchCoefficient = (double)CloudLayoutCreator.GetInscribedSquare().Width /
CloudLayoutCreator.GetCircumscribedSquare().Width;
stretchCoefficient
.Should()
.BeGreaterOrEqualTo(0.8, "Figure stretched a lot in one axis");
}
public void Should_DenselyPlaceRectangles_InShapeLikeSquare()
{
var rectangles = CloudLayoutCreator.GetAllRectangles().ToList();
var inscribedSquare = CloudLayoutCreator.GetInscribedSquare();
// check if we don't have outliers
rectangles
.All(rect => inscribedSquare.IntersectsWith(rect))
.Should()
.BeTrue("Inner square should intersect with every rectangle");
}
public void Should_DenselyLocateRectangles_InCircumscribedSquare()
{
var circumscribedSquare = CloudLayoutCreator.GetCircumscribedSquare();
var actualRectanglesAres = CloudLayoutCreator.GetAllRectangles().Sum(rect => rect.Width * rect.Height);
var denseCoefficient =
(double)actualRectanglesAres / (circumscribedSquare.Width * circumscribedSquare.Width);
denseCoefficient
.Should()
.BeGreaterThan(0.5);
}
public void Should_DenselyPlaceRectangles_SymmetricByCoordinates()
{
// This test also checks that figure inscribes in square
var rectangles = CloudLayoutCreator.GetAllRectangles().ToList();
IsSymmetricOverAxis(rectangles, rect => rect.X, rect => rect.Width)
.Should()
.BeTrue("Figure don't symmetric over x axis");
IsSymmetricOverAxis(rectangles, rect => rect.Y, rect => rect.Height)
.Should()
.BeTrue("Figure don't symmetric over y axis");
}
public void Should_ThrowException_WhenNextRectangleIsDegenerate(int width, int height)
{
Action a = () => CloudLayoutCreator.PutNextRectangle(new Size(width, height));
a.Should().Throw <ArgumentException>();
}