57 lines
2.2 KiB
C#
57 lines
2.2 KiB
C#
using GameCli;
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using Xunit;
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namespace GameCli.Tests;
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public class RewardTests
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{
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[Fact]
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public void AtTarget_ZeroVel_ZeroAngle_Noop_HasZeroReward()
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{
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var ship = new ShipState(0.5f, 0.5f, 0f, 0f, 0f, 0f);
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float r = Reward.Compute(ship, target: (0.5f, 0.5f), action: 0);
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Assert.Equal(0f, r, precision: 5);
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}
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[Fact]
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public void FarFromTarget_HasLargerNegativeThanNear()
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{
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var near = new ShipState(0.5f, 0.5f, 0f, 0f, 0f, 0f);
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var far = new ShipState(0.9f, 0.9f, 0f, 0f, 0f, 0f);
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float rNear = Reward.Compute(near, target: (0.5f, 0.5f), action: 0);
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float rFar = Reward.Compute(far, target: (0.5f, 0.5f), action: 0);
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Assert.True(rFar < rNear, $"far reward {rFar} should be < near reward {rNear}");
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}
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[Fact]
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public void HighVelocity_PenalizesReward()
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{
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var stopped = new ShipState(0.5f, 0.5f, 0f, 0f, 0f, 0f);
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var moving = new ShipState(0.5f, 0.5f, 1f, 1f, 0f, 0f);
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float rStop = Reward.Compute(stopped, target: (0.5f, 0.5f), action: 0);
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float rMove = Reward.Compute(moving, target: (0.5f, 0.5f), action: 0);
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Assert.True(rMove < rStop, $"moving reward {rMove} should be < stopped reward {rStop}");
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}
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[Fact]
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public void Tilted_PenalizesReward()
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{
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var upright = new ShipState(0.5f, 0.5f, 0f, 0f, 0f, 0f);
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var tilted = new ShipState(0.5f, 0.5f, 0f, 0f, 0.8f, 0f);
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float rUp = Reward.Compute(upright, target: (0.5f, 0.5f), action: 0);
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float rTi = Reward.Compute(tilted, target: (0.5f, 0.5f), action: 0);
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Assert.True(rTi < rUp, $"tilted reward {rTi} should be < upright reward {rUp}");
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}
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[Fact]
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public void FiringEngine_PenalizesReward()
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{
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var ship = new ShipState(0.5f, 0.5f, 0f, 0f, 0f, 0f);
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float rNoop = Reward.Compute(ship, target: (0.5f, 0.5f), action: 0);
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float rMain = Reward.Compute(ship, target: (0.5f, 0.5f), action: 2);
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float rLeft = Reward.Compute(ship, target: (0.5f, 0.5f), action: 1);
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Assert.True(rMain < rNoop, "firing main should be worse than noop");
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Assert.True(rLeft < rNoop, "firing left should be worse than noop");
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}
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}
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