public void LineIntersection()
{
Line horizontalLine = new Line(new Vector2D(0.0f, 1.0f), new Vector2D(2.0f, 1.0f));
Line verticalLine = new Line(new Vector2D(1.0f, 0.0f), new Vector2D(1.0f, 2.0f));
Assert.IsTrue(horizontalLine.TestIntersection(verticalLine));
Assert.IsTrue(horizontalLine.TestIntersection(horizontalLine));
Assert.IsTrue(verticalLine.TestIntersection(verticalLine));
Line offsetHorizontalLine = new Line(new Vector2D(0.0f, 3.0f), new Vector2D(2.0f, 3.0f));
Assert.IsFalse(offsetHorizontalLine.TestIntersection(horizontalLine));
Line reverseHorizontalLine = new Line(new Vector2D(2.0f, 1.0f), new Vector2D(0.0f, 1.0f));
Line reverseVerticalLine = new Line(new Vector2D(1.0f, 2.0f), new Vector2D(1.0f, 0.0f));
Line reverseOffsetHorizontalLine = new Line(new Vector2D(0.0f, 3.0f), new Vector2D(2.0f, 3.0f));
Assert.IsTrue(reverseHorizontalLine.TestIntersection(reverseVerticalLine));
Assert.IsTrue(reverseHorizontalLine.TestIntersection(verticalLine));
Assert.IsTrue(reverseVerticalLine.TestIntersection(verticalLine));
Assert.IsTrue(reverseVerticalLine.TestIntersection(reverseVerticalLine));
Assert.IsFalse(reverseHorizontalLine.TestIntersection(reverseOffsetHorizontalLine));
Assert.IsFalse(reverseHorizontalLine.TestIntersection(offsetHorizontalLine));
}
