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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
94 lines
2.4 KiB
C#
94 lines
2.4 KiB
C#
using Sandbox.UI;
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namespace MathTests;
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[TestClass]
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public class MarginTest
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{
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/// <summary>
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/// The constructors should fan a uniform value, a horizontal/vertical
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/// pair, or four explicit edges out to the edge fields.
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/// </summary>
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[TestMethod]
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public void Construct()
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{
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var uniform = new Margin( 5 );
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Assert.AreEqual( 5, uniform.Left );
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Assert.AreEqual( 5, uniform.Top );
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Assert.AreEqual( 5, uniform.Right );
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Assert.AreEqual( 5, uniform.Bottom );
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var pair = new Margin( 2, 3 );
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Assert.AreEqual( 2, pair.Left );
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Assert.AreEqual( 3, pair.Top );
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Assert.AreEqual( 2, pair.Right );
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Assert.AreEqual( 3, pair.Bottom );
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var full = new Margin( 1, 2, 3, 4 );
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Assert.AreEqual( 1, full.Left );
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Assert.AreEqual( 2, full.Top );
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Assert.AreEqual( 3, full.Right );
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Assert.AreEqual( 4, full.Bottom );
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}
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/// <summary>
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/// EdgeSize should be the sum of the opposing edges per axis.
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/// </summary>
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[TestMethod]
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public void EdgeSize()
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{
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var m = new Margin( 1, 2, 3, 4 );
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Assert.AreEqual( new Vector2( 4, 6 ), m.EdgeSize );
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}
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/// <summary>
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/// EdgeAdd treats the margin as rect edges: insetting adds to left/top but
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/// subtracts from right/bottom. EdgeSubtract should be its inverse.
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/// </summary>
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[TestMethod]
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public void EdgeAddSubtractRoundTrip()
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{
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var m = new Margin( 10, 10, 10, 10 );
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var delta = new Margin( 1, 2, 3, 4 );
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var added = m.EdgeAdd( delta );
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Assert.AreEqual( 11, added.Left );
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Assert.AreEqual( 12, added.Top );
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Assert.AreEqual( 7, added.Right );
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Assert.AreEqual( 6, added.Bottom );
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var back = added.EdgeSubtract( delta );
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Assert.AreEqual( m.Left, back.Left );
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Assert.AreEqual( m.Top, back.Top );
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Assert.AreEqual( m.Right, back.Right );
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Assert.AreEqual( m.Bottom, back.Bottom );
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}
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/// <summary>
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/// IsNearlyZero should be true only when all edges are within tolerance.
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/// </summary>
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[TestMethod]
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public void IsNearlyZero()
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{
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Assert.IsTrue( default( Margin ).IsNearlyZero() );
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Assert.IsTrue( new Margin( 0.0000001f ).IsNearlyZero() );
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Assert.IsFalse( new Margin( 1 ).IsNearlyZero() );
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}
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/// <summary>
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/// The arithmetic operators should apply per edge.
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/// </summary>
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[TestMethod]
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public void Operators()
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{
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var sum = new Margin( 1, 2, 3, 4 ) + new Margin( 10, 20, 30, 40 );
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Assert.AreEqual( 11, sum.Left );
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Assert.AreEqual( 44, sum.Bottom );
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var scaled = new Margin( 1, 2, 3, 4 ) * 2;
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Assert.AreEqual( 2, scaled.Left );
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Assert.AreEqual( 8, scaled.Bottom );
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}
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}
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