MoonTools.Curve/Test/CubicBezierCurve3D.cs

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using NUnit.Framework;
using FluentAssertions;
using MoonTools.Core.Curve;
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using System;
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using System.Numerics;
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namespace Tests
{
public class CubicBezierCurve3DMathTests
{
[Test]
public void Point()
{
var p0 = new Vector3(-4, -4, -3);
var p1 = new Vector3(-2, 4, 0);
var p2 = new Vector3(2, -4, 3);
var p3 = new Vector3(4, 4, 0);
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CubicBezierCurve3D.Point(p0, p1, p2, p3, 0f).Should().BeEquivalentTo(p0);
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CubicBezierCurve3D.Point(p0, p1, p2, p3, 0.5f).Should().BeEquivalentTo(new Vector3(0, 0, 0.75f));
CubicBezierCurve3D.Point(p0, p1, p2, p3, 0.5f).Should().BeEquivalentTo(new Vector3(0, 0, 0.75f));
CubicBezierCurve3D.Point(p0, p1, p2, p3, 0.25f).Should().BeEquivalentTo(new Vector3(-2.1875f, -0.5f, -0.84375f));
CubicBezierCurve3D.Point(p0, p1, p2, p3, 0.75f).Should().BeEquivalentTo(new Vector3(2.1875f, 0.5f, 1.21875f));
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CubicBezierCurve3D.Point(p0, p1, p2, p3, 1f).Should().BeEquivalentTo(p3);
Action invalidTime = () => CubicBezierCurve3D.Point(p0, p1, p2, p3, 1.5f);
invalidTime.Should().Throw<ArgumentException>();
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}
[Test]
public void PointNormalized()
{
var p0 = new Vector3(-4, -4, -3);
var p1 = new Vector3(-2, 4, 0);
var p2 = new Vector3(2, -4, 3);
var p3 = new Vector3(4, 4, 0);
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CubicBezierCurve3D.Point(p0, p1, p2, p3, 15, 15, 17).Should().BeEquivalentTo(p0);
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CubicBezierCurve3D.Point(p0, p1, p2, p3, 3, 2, 4).Should().BeEquivalentTo(new Vector3(0, 0, 0.75f));
CubicBezierCurve3D.Point(p0, p1, p2, p3, 2, 1, 5).Should().BeEquivalentTo(new Vector3(-2.1875f, -0.5f, -0.84375f));
CubicBezierCurve3D.Point(p0, p1, p2, p3, 11, 2, 14).Should().BeEquivalentTo(new Vector3(2.1875f, 0.5f, 1.21875f));
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CubicBezierCurve3D.Point(p0, p1, p2, p3, 1, -8, 1).Should().BeEquivalentTo(p3);
Action invalidTime = () => CubicBezierCurve3D.Point(p0, p1, p2, p3, 15, 2, 5);
invalidTime.Should().Throw<ArgumentException>();
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}
[Test]
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public void Velocity()
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{
var p0 = new Vector3(-4, -4, -3);
var p1 = new Vector3(-2, 4, 0);
var p2 = new Vector3(2, -4, 3);
var p3 = new Vector3(4, 4, 0);
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CubicBezierCurve3D.Velocity(p0, p1, p2, p3, 0.5f).Should().BeEquivalentTo(new Vector3(9, 0, 4.5f));
CubicBezierCurve3D.Velocity(p0, p1, p2, p3, 0.25f).Should().BeEquivalentTo(new Vector3(8.25f, 6f, 7.875f));
CubicBezierCurve3D.Velocity(p0, p1, p2, p3, 0.75f).Should().BeEquivalentTo(new Vector3(8.25f, 6f, -1.125f));
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Action invalidTime = () => CubicBezierCurve3D.Velocity(p0, p1, p2, p3, 1.5f);
invalidTime.Should().Throw<ArgumentException>();
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}
[Test]
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public void VelocityNormalized()
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{
var p0 = new Vector3(-4, -4, -3);
var p1 = new Vector3(-2, 4, 0);
var p2 = new Vector3(2, -4, 3);
var p3 = new Vector3(4, 4, 0);
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CubicBezierCurve3D.Velocity(p0, p1, p2, p3, 3, 2, 4).Should().BeEquivalentTo(new Vector3(9, 0, 4.5f));
CubicBezierCurve3D.Velocity(p0, p1, p2, p3, 2, 1, 5).Should().BeEquivalentTo(new Vector3(8.25f, 6f, 7.875f));
CubicBezierCurve3D.Velocity(p0, p1, p2, p3, 11, 2, 14).Should().BeEquivalentTo(new Vector3(8.25f, 6f, -1.125f));
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Action invalidTime = () => CubicBezierCurve3D.Velocity(p0, p1, p2, p3, 15, 2, 5);
invalidTime.Should().Throw<ArgumentException>();
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}
}
public class CubicBezierCurve3DStructTests
{
[Test]
public void Point()
{
var myCurve = new CubicBezierCurve3D(
new Vector3(-4, -4, -3),
new Vector3(-2, 4, 0),
new Vector3(2, -4, 3),
new Vector3(4, 4, 0)
);
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myCurve.Point(0f).Should().BeEquivalentTo(myCurve.p0);
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myCurve.Point(0.5f).Should().BeEquivalentTo(new Vector3(0, 0, 0.75f));
myCurve.Point(0.25f).Should().BeEquivalentTo(new Vector3(-2.1875f, -0.5f, -0.84375f));
myCurve.Point(0.75f).Should().BeEquivalentTo(new Vector3(2.1875f, 0.5f, 1.21875f));
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myCurve.Point(1f).Should().BeEquivalentTo(myCurve.p3);
myCurve.Invoking(x => x.Point(1.5f)).Should().Throw<ArgumentException>();
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}
[Test]
public void PointNormalized()
{
var myCurve = new CubicBezierCurve3D(
new Vector3(-4, -4, -3),
new Vector3(-2, 4, 0),
new Vector3(2, -4, 3),
new Vector3(4, 4, 0)
);
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myCurve.Point(15, 15, 17).Should().BeEquivalentTo(myCurve.p0);
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myCurve.Point(3, 2, 4).Should().BeEquivalentTo(new Vector3(0, 0, 0.75f));
myCurve.Point(2, 1, 5).Should().BeEquivalentTo(new Vector3(-2.1875f, -0.5f, -0.84375f));
myCurve.Point(11, 2, 14).Should().BeEquivalentTo(new Vector3(2.1875f, 0.5f, 1.21875f));
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myCurve.Point(1, -8, 1).Should().BeEquivalentTo(myCurve.p3);
myCurve.Invoking(x => x.Point(15, 2, 5)).Should().Throw<ArgumentException>();
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}
[Test]
public void Velocity()
{
var myCurve = new CubicBezierCurve3D(
new Vector3(-4, -4, -3),
new Vector3(-2, 4, 0),
new Vector3(2, -4, 3),
new Vector3(4, 4, 0)
);
myCurve.Velocity(0.5f).Should().BeEquivalentTo(new Vector3(9, 0, 4.5f));
myCurve.Velocity(0.25f).Should().BeEquivalentTo(new Vector3(8.25f, 6f, 7.875f));
myCurve.Velocity(0.75f).Should().BeEquivalentTo(new Vector3(8.25f, 6f, -1.125f));
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myCurve.Invoking(x => x.Velocity(1.5f)).Should().Throw<ArgumentException>();
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}
[Test]
public void VelocityNormalized()
{
var myCurve = new CubicBezierCurve3D(
new Vector3(-4, -4, -3),
new Vector3(-2, 4, 0),
new Vector3(2, -4, 3),
new Vector3(4, 4, 0)
);
myCurve.Velocity(3, 2, 4).Should().BeEquivalentTo(new Vector3(9, 0, 4.5f));
myCurve.Velocity(2, 1, 5).Should().BeEquivalentTo(new Vector3(8.25f, 6f, 7.875f));
myCurve.Velocity(11, 2, 14).Should().BeEquivalentTo(new Vector3(8.25f, 6f, -1.125f));
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myCurve.Invoking(x => x.Velocity(15, 2, 5)).Should().Throw<ArgumentException>();
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}
}
}