public void IsOnLineSegment()
{
bool expected;
bool returned;
V2 s, p1, p2;
/**************************************************/
// --- TEST ---
// p1=p2=s=0, no line
s = new V2(0.0f, 0.0f);
p1 = new V2(0.0f, 0.0f);
p2 = new V2(0.0f, 0.0f);
expected = true;
returned = s.IsOnLineSegment(p1, p2);
Assert.AreEqual(expected, returned);
// --- TEST ---
// p1=s
s = new V2(0.0f, 0.0f);
p1 = new V2(0.0f, 0.0f);
p2 = new V2(0.0f, 1.0f);
expected = true;
returned = s.IsOnLineSegment(p1, p2);
Assert.AreEqual(expected, returned);
// --- TEST ---
// p2=s
s = new V2(0.0f, 1.0f);
p1 = new V2(0.0f, 0.0f);
p2 = new V2(0.0f, 1.0f);
expected = true;
returned = s.IsOnLineSegment(p1, p2);
Assert.AreEqual(expected, returned);
/**************************************************/
// --- TEST ---
// s is somewhere on line
s = new V2(0.5f, 0.5f);
p1 = new V2(0.0f, 0.0f);
p2 = new V2(1.0f, 1.0f);
expected = true;
returned = s.IsOnLineSegment(p1, p2);
Assert.AreEqual(expected, returned);
// --- TEST ---
// s is somewhere on line
s = new V2(-0.5f, -0.5f);
p1 = new V2(0.0f, 0.0f);
p2 = new V2(-1.0f, -1.0f);
expected = true;
returned = s.IsOnLineSegment(p1, p2);
Assert.AreEqual(expected, returned);
// --- TEST ---
// s is somewhere on line
s = new V2(-0.5f, 0.5f);
p1 = new V2(0.0f, 0.0f);
p2 = new V2(-1.0f, 1.0f);
expected = true;
returned = s.IsOnLineSegment(p1, p2);
Assert.AreEqual(expected, returned);
// --- TEST ---
// s is somewhere on line
s = new V2(0.5f, -0.5f);
p1 = new V2(0.0f, 0.0f);
p2 = new V2(1.0f, -1.0f);
expected = true;
returned = s.IsOnLineSegment(p1, p2);
Assert.AreEqual(expected, returned);
/**************************************************/
// --- TEST ---
// s is not on line segment, but on same infinite line
s = new V2(2.0f, 2.0f);
p1 = new V2(0.0f, 0.0f);
p2 = new V2(1.0f, 1.0f);
expected = false;
returned = s.IsOnLineSegment(p1, p2);
Assert.AreEqual(expected, returned);
// --- TEST ---
// s is not on line segment, but on same infinite line
s = new V2(-2.0f, -2.0f);
p1 = new V2(0.0f, 0.0f);
p2 = new V2(1.0f, 1.0f);
expected = false;
returned = s.IsOnLineSegment(p1, p2);
Assert.AreEqual(expected, returned);
// --- TEST ---
// s is not on line, but close aside of it (in bbox)
s = new V2(0.45f, 0.55f);
p1 = new V2(0.0f, 0.0f);
p2 = new V2(1.0f, 1.0f);
expected = false;
returned = s.IsOnLineSegment(p1, p2);
Assert.AreEqual(expected, returned);
// --- TEST ---
// s is not on line and far (outside bbox)
s = new V2(0.0f, 1000.0f);
p1 = new V2(0.0f, 0.0f);
p2 = new V2(1.0f, 1.0f);
expected = false;
returned = s.IsOnLineSegment(p1, p2);
Assert.AreEqual(expected, returned);
// --- TEST ---
// s is on line
s = new V2(14304f, 32512f);
p1 = new V2(15872f, 32512f);
p2 = new V2(3433.6f, 32512f);
expected = true;
returned = s.IsOnLineSegment(p1, p2);
Assert.AreEqual(expected, returned);
}
