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https://github.com/Facepunch/sbox-public.git
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d95169d8fa
* Move all unit tests to Engine/Tests * Fix Margin.EdgeSubtract * Fix Capsule.Contains * EnvironmentVariables.Remove if it's null * Fixed ray trace never returning startedsolid * Fix HistoryList.Navigate on empty list * Fix GameObject.WorldPosition accepting NaNs * Fix flex: initial expanding to the wrong grow/shrink * Translation.TryConvert shouldn't throw on invalid enum strings * Skip sound file tests on machines with no audio device
77 lines
2.0 KiB
C#
77 lines
2.0 KiB
C#
namespace MathTests;
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[TestClass]
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public class ConeTest
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{
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// Base of radius 10 at the origin, tapering to a point 100 up.
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static readonly Cone TaperedCone = new( Vector3.Zero, new Vector3( 0, 0, 100 ), 10, 0 );
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/// <summary>
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/// Points on the axis inside the cone should be contained; points beyond
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/// the slanted surface or past the ends should not.
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/// </summary>
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[TestMethod]
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public void Contains()
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{
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Assert.IsTrue( TaperedCone.Contains( new Vector3( 0, 0, 1 ) ) );
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Assert.IsTrue( TaperedCone.Contains( new Vector3( 4, 0, 10 ) ) );
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Assert.IsFalse( TaperedCone.Contains( new Vector3( 9, 0, 90 ) ) );
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Assert.IsFalse( TaperedCone.Contains( new Vector3( 0, 0, 150 ) ) );
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Assert.IsFalse( TaperedCone.Contains( new Vector3( 0, 0, -10 ) ) );
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}
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/// <summary>
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/// Bounds should fully enclose the base circle and the tip.
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/// </summary>
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[TestMethod]
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public void Bounds()
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{
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var bounds = TaperedCone.Bounds;
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Assert.IsTrue( bounds.Mins.z <= 0 );
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Assert.IsTrue( bounds.Maxs.z >= 100 );
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Assert.IsTrue( bounds.Mins.x <= -10 );
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Assert.IsTrue( bounds.Maxs.x >= 10 );
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}
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/// <summary>
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/// Sampled random points must always satisfy Contains.
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/// </summary>
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[TestMethod]
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public void RandomPointInsideIsContained()
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{
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for ( int i = 0; i < 100; i++ )
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{
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var p = TaperedCone.RandomPointInside;
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Assert.IsTrue( TaperedCone.Contains( p ), $"{p} not inside cone" );
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}
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}
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/// <summary>
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/// Edge distance should grow as the query point moves away from the surface.
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/// </summary>
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[TestMethod]
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public void EdgeDistanceOrdering()
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{
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var near = TaperedCone.GetEdgeDistance( new Vector3( 15, 0, 0 ) );
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var far = TaperedCone.GetEdgeDistance( new Vector3( 50, 0, 0 ) );
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Assert.IsTrue( near < far );
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}
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/// <summary>
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/// Cones with identical centers and radii should be equal.
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/// </summary>
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[TestMethod]
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public void Equality()
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{
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var a = new Cone( Vector3.Zero, Vector3.Up, 5, 1 );
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var b = new Cone( Vector3.Zero, Vector3.Up, 5, 1 );
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var c = new Cone( Vector3.Zero, Vector3.Up, 5, 2 );
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Assert.IsTrue( a == b );
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Assert.IsTrue( a != c );
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}
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}
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