90 lines
2.7 KiB
C#
90 lines
2.7 KiB
C#
using SSPCTester.Devices.Interfaces;
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using SSPCTester.Logic.Calculation;
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using Xunit;
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namespace SSPCTester.Tests;
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public class CurveMetricsTests
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{
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/// <summary>构造一段 V(t) = Vmax*(1-exp(-t/tau)) 形状的上升曲线。</summary>
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private static CurveData MakeRising(double vMax = 28, double tauSec = 0.0005, int rate = 100_000, double duration = 0.01, double trigger = 0.0025)
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{
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int n = (int)(rate * duration);
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var v = new double[n];
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for (int i = 0; i < n; i++)
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{
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double t = (double)i / rate - trigger;
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v[i] = t <= 0 ? 0 : vMax * (1 - System.Math.Exp(-t / tauSec));
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}
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return new CurveData { SampleRateHz = rate, TriggerTimeSec = trigger, Voltage = v };
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}
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private static CurveData MakeFalling(double vMax = 28, double tauSec = 0.0005, int rate = 100_000, double duration = 0.01, double trigger = 0.0025)
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{
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int n = (int)(rate * duration);
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var v = new double[n];
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for (int i = 0; i < n; i++)
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{
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double t = (double)i / rate - trigger;
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v[i] = t <= 0 ? vMax : vMax * System.Math.Exp(-t / tauSec);
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}
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return new CurveData { SampleRateHz = rate, TriggerTimeSec = trigger, Voltage = v };
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}
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[Fact]
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public void OnTimeMs_ReachesNinetyPercent_AtAboutMinusLogPointOneTau()
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{
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var c = MakeRising();
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double onMs = CurveMetrics.OnTimeMs(c, 28, 0.9);
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// 90% 时刻 t = -tau * ln(0.1) ≈ 1.151 ms
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Assert.InRange(onMs, 1.1, 1.2);
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}
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[Fact]
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public void RiseTimeMs_TenToNinety_AboutTwoPointTwo()
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{
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var c = MakeRising();
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double rt = CurveMetrics.RiseTimeMs(c, 28);
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// ln(0.9/0.1) = ln 9 ≈ 2.197；rt = tau * 2.197 ≈ 1.099 ms
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Assert.InRange(rt, 1.05, 1.15);
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}
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[Fact]
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public void OffTimeMs_FallingToTenPercent()
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{
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var c = MakeFalling();
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double off = CurveMetrics.OffTimeMs(c, 28, 0.1);
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Assert.InRange(off, 1.1, 1.2);
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}
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[Fact]
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public void EstimateVMax_NearActualMax()
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{
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var c = MakeRising();
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double v = CurveMetrics.EstimateVMax(c.Voltage);
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Assert.InRange(v, 27, 28.001);
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}
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}
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public class PowerLossTests
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{
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[Fact]
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public void VoltageDrop_Subtracts()
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=> Assert.Equal(1.5, PowerLoss.VoltageDrop(28, 26.5), 3);
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[Fact]
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public void Loss_PinMinusPout()
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=> Assert.Equal(28 * 1.0 - 26.5 * 1.0, PowerLoss.LossWatts(28, 1, 26.5, 1), 3);
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[Fact]
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public void Efficiency_Percentage()
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{
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double e = PowerLoss.EfficiencyPct(28, 1, 26.5, 1);
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Assert.InRange(e, 94, 95);
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}
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[Fact]
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public void Efficiency_ZeroInputReturnsZero()
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=> Assert.Equal(0.0, PowerLoss.EfficiencyPct(0, 0, 0, 0));
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}
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