public void LeftIntersection_OfLowerFocusWhenSweeplineIsBelowIt_ShouldBeInOrderLeftIntersectionThenSiteThenRightIntersection (Arc arc, Sweepline sweepline) { // Fixture setup var dualArc = new Arc { LeftNeighbour = arc.Site, Site = arc.LeftNeighbour }; var lowerArc = arc.Site.Position.Z < dualArc.Site.Position.Z ? arc : dualArc; var higherArc = arc.Site.Position.Z >= dualArc.Site.Position.Z ? arc : dualArc; var directionOfLowerFocus = AngleUtilities.EquatorialDirection(lowerArc.Site.Position); // Exercise system var directionOfLeftIntersection = lowerArc.LeftIntersection(sweepline); var directionOfRightIntersection = higherArc.LeftIntersection(sweepline); // Verify outcome var areInOrder = ArcOrderer.AreInOrder(directionOfLeftIntersection, directionOfLowerFocus, directionOfRightIntersection); var failureString = String.Format("Direction of left intersection: {0},\n" + "Direction of right intersection: {1},\n", directionOfLeftIntersection, directionOfRightIntersection); Assert.True(areInOrder, failureString); // Teardown }
public void AreInOrder_OnThreeCyclicallyOrderedEquatorialVectors_ShouldReturnTrue() { // Fixture setup var a = Utilities.VectorAt(90, -90); var b = Utilities.VectorAt(90, 0); var c = Utilities.VectorAt(90, 90); // Exercise system var areInOrder = ArcOrderer.AreInOrder(a, b, c); // Verify outcome Assert.True(areInOrder); // Teardown }
public void AreInOrder_WhenFirstAndLastVectorsAreEqual_ShouldReturnFalse() { // Fixture setup var a = Utilities.VectorAt(90, -90); var b = Utilities.VectorAt(90, 0); var c = Utilities.VectorAt(90, -90); // Exercise system var areInOrder = ArcOrderer.AreInOrder(a, b, c); // Verify outcome Assert.False(areInOrder); // Teardown }
public void EquatorialMidpoint_OfTwoNonpolarVectors_ShouldBeInOrderWithTheTwoVectorsEquatorialDirections (Vector3 u, Vector3 v) { // Fixture setup var directionOfU = AngleUtilities.EquatorialDirection(u); var directionOfV = AngleUtilities.EquatorialDirection(v); // Exercise system var midpoint = AngleUtilities.EquatorialMidpoint(u, v); // Verify outcome var areInOrder = ArcOrderer.AreInOrder(directionOfU, midpoint, directionOfV); var failureString = String.Format("Midpoint was {0}", midpoint); Assert.True(areInOrder, failureString); // Teardown }