public void ShouldPutFirstRectangle()
{
circularCloudLayouter = new CircularTagsCloudLayouter();
rectangleSizes.Add(new Size(10, 10));
var rectangle = circularCloudLayouter.PutNextRectangle(rectangleSizes[0]);
rectangle.Should().NotBe(null);
}
public void ShouldPutFirstRectangleInCenter()
{
cloudCenter = new Point(0, 0);
circularCloudLayouter = new CircularTagsCloudLayouter();
rectangleSizes.Add(new Size(7, 10));
var rectangle = circularCloudLayouter.PutNextRectangle(rectangleSizes[0]);
rectangle.Contains(cloudCenter).Should().BeTrue();
}
public void PutTwoRectangles_AndTheyAreNotIntersected()
{
circularCloudLayouter = new CircularTagsCloudLayouter();
rectangleSizes.Add(new Size(10, 20));
rectangleSizes.Add(new Size(50, 50));
var rectangle1 = circularCloudLayouter.PutNextRectangle(rectangleSizes[0]);
var rectangle2 = circularCloudLayouter.PutNextRectangle(rectangleSizes[1]);
rectangle1.IntersectsWith(rectangle2).Should().Be(false);
}
public void PutTwoRectangles_OnFreePlane()
{
circularCloudLayouter = new CircularTagsCloudLayouter();
rectangleSizes.Add(new Size(10, 20));
rectangleSizes.Add(new Size(13, 6));
var rectangle1 = circularCloudLayouter.PutNextRectangle(rectangleSizes[0]);
var rectangle2 = circularCloudLayouter.PutNextRectangle(rectangleSizes[1]);
rectangle1.Should().NotBe(null);
rectangle2.Should().NotBe(null);
rectangle1.Should().NotBeEquivalentTo(rectangle2);
}
public void PutManyRectangles_AndTheyAreTight(int rectanglesCount)
{
circularCloudLayouter = new CircularTagsCloudLayouter();
const int randomRange = 1000;
var random = new Random(randomRange);
for (var i = 0; i < rectanglesCount; i++)
{
rectangleSizes.Add(new Size(random.Next(1, randomRange), random.Next(1, randomRange)));
}
var rectangles = new List <Rectangle>();
foreach (var curRectSize in rectangleSizes)
{
rectangles.Add(circularCloudLayouter.PutNextRectangle(curRectSize));
}
foreach (var rectangle in rectangles)
{
CanRectangleBeMovedToCentre(rectangle, rectangles).Should().BeFalse();
}
}
public void PutManyRectangles_AndTheyAreNotIntersected(int rectanglesCount)
{
circularCloudLayouter = new CircularTagsCloudLayouter();
const int randomRange = 1000;
var random = new Random(randomRange);
for (var i = 0; i < rectanglesCount; i++)
{
rectangleSizes.Add(new Size(random.Next(1, randomRange), random.Next(1, randomRange)));
}
var rectangles = new Rectangle[rectanglesCount];
for (var i = 0; i < rectanglesCount; i++)
{
rectangles[i] = circularCloudLayouter.PutNextRectangle(rectangleSizes[i]);
}
rectangles
.SelectMany(r1 => rectangles.Select((r2) => r1 != r2 && r1.IntersectsWith(r2)))
.Any(x => x)
.Should()
.BeFalse();
}
public void PutManyRectangles_AndTagCloudIsCircularity(int rectanglesCount)
{
circularCloudLayouter = new CircularTagsCloudLayouter();
const int randomRange = 200;
var random = new Random(randomRange);
for (var i = 0; i < rectanglesCount; i++)
{
rectangleSizes.Add(new Size(1 + random.Next(randomRange), 1 + random.Next(randomRange)));
}
double maxDistanceFromCenter = 0;
double tagCloudSquare = 0;
for (var i = 0; i < rectanglesCount; i++)
{
var rectangle = circularCloudLayouter.PutNextRectangle(rectangleSizes[i]);
var vertices = new Point[]
{
new Point(rectangle.Left, rectangle.Bottom),
new Point(rectangle.Left, rectangle.Top),
new Point(rectangle.Right, rectangle.Bottom),
new Point(rectangle.Right, rectangle.Top),
};
var theMostFarVertexFromCenter = vertices
.Select((x) => CalcDistanceBetweenPoints(cloudCenter, x))
.Max();
maxDistanceFromCenter = Math.Max(maxDistanceFromCenter,
theMostFarVertexFromCenter);
tagCloudSquare += rectangleSizes[i].Width * rectangleSizes[i].Height;
}
var circleArea = Math.PI * maxDistanceFromCenter * maxDistanceFromCenter;
var squaresRatio = tagCloudSquare / circleArea;
squaresRatio.Should().BeGreaterOrEqualTo(0.3);
}
public void ThrowsArgumentException_IfNotPositiveSizeOfRectangle(int width, int height)
{
circularCloudLayouter = new CircularTagsCloudLayouter();
rectangleSizes.Add(new Size(width, height));
Assert.Throws <ArgumentException>(() => circularCloudLayouter.PutNextRectangle(rectangleSizes[0]));
}