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https://github.com/par274/sharpemu.git
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kuba
93c9f14081
Preload the app0 APR index during bind and bound the open host-file cache so streaming reads stay responsive under large title archives.
79 lines
2.9 KiB
C#
79 lines
2.9 KiB
C#
// Copyright (C) 2026 SharpEmu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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using SharpEmu.Libs.Ampr;
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using Xunit;
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namespace SharpEmu.Libs.Tests.Ampr;
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public class AmprFileRegistryTests
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{
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[Fact]
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public void ComputeFileId_matches_utf8_fnv1a()
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{
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const string relative = "CoreData/foo/bar.bin";
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Assert.Equal(FnvUtf8("$/" + relative), AmprFileRegistry.ComputeFileId("$/" + relative));
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Assert.Equal(FnvUtf8("/app0/" + relative), AmprFileRegistry.ComputeFileId("/app0/" + relative));
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Assert.Equal(FnvUtf8("app0/" + relative), AmprFileRegistry.ComputeFileId("app0/" + relative));
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Assert.Equal(FnvUtf8(relative), AmprFileRegistry.ComputeFileId(relative));
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}
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[Fact]
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public void RegisterApp0Relative_publishes_same_ids_as_string_hashes()
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{
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AmprFileRegistry.ClearForTests();
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const string relative = "misc/loadouts/test.txt";
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var host = Path.Combine(Path.GetTempPath(), "sharpemu-ampr-test", relative);
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AmprFileRegistry.RegisterApp0RelativeForTests(relative, host);
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Assert.True(AmprFileRegistry.TryGetHostPath(
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AmprFileRegistry.ComputeFileId("$/" + relative), out var a));
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Assert.True(AmprFileRegistry.TryGetHostPath(
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AmprFileRegistry.ComputeFileId("/app0/" + relative), out var b));
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Assert.True(AmprFileRegistry.TryGetHostPath(
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AmprFileRegistry.ComputeFileId("app0/" + relative), out var c));
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Assert.True(AmprFileRegistry.TryGetHostPath(
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AmprFileRegistry.ComputeFileId(relative), out var d));
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Assert.Equal(host, a);
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Assert.Equal(host, b);
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Assert.Equal(host, c);
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Assert.Equal(host, d);
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}
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[Fact]
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public void Register_publishes_all_app0_path_aliases()
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{
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AmprFileRegistry.ClearForTests();
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const string relative = "scripts/cp11/cp11main.script";
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var host = Path.Combine(Path.GetTempPath(), "sharpemu-ampr-test2", relative);
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AmprFileRegistry.Register("$/" + relative, host);
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Assert.True(AmprFileRegistry.TryGetHostPath(
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AmprFileRegistry.ComputeFileId("$/" + relative), out var a));
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Assert.True(AmprFileRegistry.TryGetHostPath(
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AmprFileRegistry.ComputeFileId("/app0/" + relative), out var b));
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Assert.True(AmprFileRegistry.TryGetHostPath(
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AmprFileRegistry.ComputeFileId("app0/" + relative), out var c));
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Assert.True(AmprFileRegistry.TryGetHostPath(
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AmprFileRegistry.ComputeFileId(relative), out var d));
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Assert.Equal(host, a);
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Assert.Equal(host, b);
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Assert.Equal(host, c);
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Assert.Equal(host, d);
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}
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private static uint FnvUtf8(string text)
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{
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const uint offset = 2166136261;
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const uint prime = 16777619;
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var hash = offset;
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foreach (var b in System.Text.Encoding.UTF8.GetBytes(text))
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{
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hash ^= b;
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hash *= prime;
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}
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return hash;
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}
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}
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