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https://github.com/kwsch/PKHeX
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be8b12dbbe
Add some unit tests (why not?)
48 lines
1.4 KiB
C#
48 lines
1.4 KiB
C#
using FluentAssertions;
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using PKHeX.Core;
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using Xunit;
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namespace PKHeX.Tests;
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public static class XorShiftTests
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{
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[Theory]
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[InlineData(0x7F996375F5A791FC, 0xF3A995138EC18148, 0x50188547081C7BEC, 0x0DA245AA536BEF36, 99, 1000)]
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public static void Forward(ulong s0, ulong s1, ulong n0, ulong n1, int frames, int loop)
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{
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var adv = GetFramesForward(s0, s1, n0, n1, loop);
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adv.Should().Be(frames);
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}
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[Theory]
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[InlineData(0x7F996375F5A791FC, 0xF3A995138EC18148, 0x50188547081C7BEC, 0x0DA245AA536BEF36, 99, 1000)]
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public static void Reverse(ulong s0, ulong s1, ulong n0, ulong n1, int frames, int loop)
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{
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var adv = GetFramesReverse(s0, s1, n0, n1, loop);
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adv.Should().Be(frames);
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}
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private static int GetFramesReverse(ulong s0, ulong s1, ulong n0, ulong n1, int loop)
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{
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var rand = new XorShift128(n0, n1);
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for (int i = 0; i < loop; i++)
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{
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_ = rand.Prev();
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if (rand.GetState64() == (s0, s1))
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return i;
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}
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return -1;
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}
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private static int GetFramesForward(ulong s0, ulong s1, ulong n0, ulong n1, int loop)
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{
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var rand = new XorShift128(s0, s1);
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for (int i = 0; i < loop; i++)
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{
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_ = rand.Next();
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if (rand.GetState64() == (n0, n1))
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return i;
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}
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return -1;
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}
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}
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