public static void AngleInteriorAt_for_house_shape(int angleIndex, double expectedAngleDegrees)
{
Polygon polygon = new Polygon(house);
Assert.AreEqual(expectedAngleDegrees, polygon.AngleInteriorAt(angleIndex).DegreesRaw, Tolerance);
}
public static void AngleInteriorAt_Throws_IndexOutOfRangeException_for_Index_Beyond_Points()
{
Polygon polygon = new Polygon(bowTieNonCrossingSegments);
Assert.Throws <IndexOutOfRangeException>(() => polygon.AngleInteriorAt(7));
}
public static void AngleInteriorAt_for_bowTie_shape(int angleIndex, double expectedAngleDegrees)
{
Polygon polygon = new Polygon(bowTieNonCrossingOrIntersectingSegments);
Assert.AreEqual(expectedAngleDegrees, polygon.AngleInteriorAt(angleIndex).DegreesRaw, Tolerance);
}