public void IsUnknownReturnsFalseForKnownTest()
{
var pair = new CirclePair(m_Smaller,
m_Bigger);
Assert.False(pair.IsUnknown);
}
public void ZeroTest()
{
var pair = new CirclePair(m_Smaller,
m_Bigger);
Assert.AreEqual(m_Smaller,
pair.One);
}
public void RadiusZeroForFirstIsGreaterTest()
{
var pair = new CirclePair(m_Bigger,
m_Smaller);
Assert.AreEqual(m_Bigger.Radius,
pair.RadiusZero);
}
public void ZeroForSecondIsGreaterTest()
{
var pair = new CirclePair(m_Smaller,
m_Bigger);
Assert.AreEqual(m_Bigger,
pair.Zero);
}
public void DistanceTest()
{
var pair = new CirclePair(m_Smaller,
m_Bigger);
NUnitHelper.AssertIsEquivalent(45.0,
pair.Distance,
0.01,
"Distance");
}
public void NumberOfTangentsForIntersectingTest()
{
var pair = new CirclePair(m_Bigger,
m_ThreeIntersectingTwo);
const int expected = 2;
int actual = pair.NumberOfTangents;
Assert.AreEqual(expected,
actual);
}
public void NumberOfTangentsForIntersectingInOnePointTest()
{
var pair = new CirclePair(m_Bigger,
m_ThreeInsideTwoIntersectingOnePoint);
const int expected = 3;
int actual = pair.NumberOfTangents;
Assert.AreEqual(expected,
actual);
}
public void NumberOfTangentsForCircleInsideOtherTouchingTest()
{
var pair = new CirclePair(m_Bigger,
m_ThreeInsideTwoIntersectingTwoPoints);
const int expected = 1;
int actual = pair.NumberOfTangents;
Assert.AreEqual(expected,
actual);
}
public void NumberOfTangentsForCircleNotIntersectingTest()
{
var pair = new CirclePair(m_Smaller,
m_Bigger);
const int expected = 4;
int actual = pair.NumberOfTangents;
Assert.AreEqual(expected,
actual);
}
public void Setup()
{
m_Two = new Circle(1.0,
20.0,
3.0);
m_One = new Circle(10.0,
20.0,
1.0);
m_CirclePair = new CirclePair(m_One,
m_Two);
m_Calculator = new CirclesIntersectionPointsCalculator(m_CirclePair);
}
public void Setup()
{
m_One = new Circle(new Point(3.0,
-5.0),
4.0);
m_Two = new Circle(new Point(-2.0,
2.0),
1.0);
m_Pair = new CirclePair(m_One,
m_Two);
m_Calculator = new InnerTangentLinesIntersectionPointCalculator(m_Pair);
}
public void Setup()
{
m_CircleOne = new Circle(1.0,
-2.0,
3.0);
m_CircleZero = new Circle(3.0,
-2.0,
4.0);
m_CirclePair = new CirclePair(m_CircleZero,
m_CircleOne);
m_Calculator = new CirclesIntersectionPointsCalculator(m_CirclePair);
}
public void Setup()
{
m_One = new Circle(new Point(10.0,
14.0),
2.5);
m_Two = new Circle(new Point(11.0,
2.5),
2.5);
m_Pair = new CirclePair(m_One,
m_Two);
m_Calculator = new OuterTangentsCalculator(m_Pair);
}
public void Setup()
{
m_One = new Circle(new Point(2.0,
4.0),
4.0);
m_Two = new Circle(new Point(10.0,
4.0),
4.0);
m_Pair = new CirclePair(m_One,
m_Two);
m_Calculator = new InnerTangentsCalculator(m_Pair);
}
public void Setup()
{
m_One = new Circle(new Point(2.0,
2.0),
2.0);
m_Two = new Circle(new Point(7.0,
6.0),
2.0);
m_Pair = new CirclePair(m_One,
m_Two);
m_Calculator = new OuterTangentsCalculator(m_Pair);
}
public void Setup()
{
m_One = new Circle(new Point(10.0,
10.0),
5.0);
m_Two = new Circle(new Point(-20.0,
-20.0),
10.0);
m_Pair = new CirclePair(m_One,
m_Two);
m_Calculator = new OuterTangentLinesIntersectionPointCalculator(m_Pair);
}
public void ZeroXBiggerThanOneXTest()
{
var circle = new Circle(new Point(10.0,
20.0),
1.0);
var pair = new CirclePair(m_One,
circle);
var expected = new Tuple <Point, Point>(new Point(9.0,
20.0),
new Point(11.0,
20));
Tuple <Point, Point> actual = m_Calculator.CalculatePointsForSameY(pair);
Assert.AreEqual(expected,
actual);
}
public void DeltaXMinusDoubleRadiusLessInsideEpsilonTest()
{
var one = new Circle(1.0,
-2.0,
3.0);
var two = new Circle(7.0,
-2.0,
3.0);
var pair = new CirclePair(one,
two);
var expected = new Tuple <Point, Point>(new Point(4.0,
-2.0),
new Point(4.0,
-2.0));
Tuple <Point, Point> actual = m_Calculator.CalculatePointsForSpecialCases(pair);
Assert.AreEqual(expected,
actual,
"IntersectionPointOne");
}
public void CalculateTangenPointsForZeroBothSameRadiusTest()
{
var one = new Circle(new Point(2.0,
2.0),
2.0);
var two = new Circle(new Point(7.0,
6.0),
2.0);
var pair = new CirclePair(one,
two);
Tuple <Point, Point> actual = m_Calculator.CalculateTangenPointsForZeroBothSameRadius(pair);
Assert.AreEqual(new Point(5.75,
7.56),
actual.Item1,
"Item1");
Assert.AreEqual(new Point(8.25,
4.44),
actual.Item2,
"Item2");
}
