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Add unit tests for `IMemoryApi.HashRegion`

This commit is contained in:
YoshiRulz 2023-03-20 11:45:03 +10:00
parent 32e36e28bb
commit a8bffab1b6
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2 changed files with 42 additions and 1 deletions
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2
src/BizHawk.Common/checksums/SHA256Checksum.cs
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@ -17,6 +17,8 @@ namespace BizHawk.Common
internal const string PREFIX = "SHA256";
public /*static readonly*/const string EmptyFile = "E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855";
#if NET6_0
public static byte[] Compute(ReadOnlySpan<byte> data)
=> SHA256.HashData(data);

41
src/BizHawk.Tests/Client.Common/Api/MemoryApiTests.cs
View File

@ -3,6 +3,7 @@ using System.Collections;
using System.Collections.Generic;
using System.Linq;
using BizHawk.Common;
using BizHawk.Client.Common;
using BizHawk.Emulation.Common;
@ -15,7 +16,12 @@ namespace BizHawk.Tests.Client.Common.Api
{
/// <remarks><see cref="CollectionAssert.AreEqual(ICollection, ICollection)"/> and its overloads can't take <see cref="IReadOnlyCollection{T}"/> -_-</remarks>
private static void AssertAreSequenceEqual<T>(IReadOnlyList<T> expected, IReadOnlyList<T> actual, string message)
=> Assert.IsTrue(actual.SequenceEqual(expected), message);
{
if (actual.SequenceEqual(expected)) return;
Console.WriteLine($"ex[{expected.Count}]: {string.Join(", ", expected.Select(static o => o?.ToString() ?? "null"))}");
Console.WriteLine($"ac[{actual.Count}]: {string.Join(", ", actual.Select(static o => o?.ToString() ?? "null"))}");
Assert.Fail(message);
}
private IMemoryApi CreateDummyApi(byte[] memDomainContents)
=> new MemoryApi(Console.WriteLine) //TODO capture and check for error messages?
@ -106,5 +112,38 @@ namespace BizHawk.Tests.Client.Common.Api
memApi => memApi.WriteByteRange(9, new byte[] { 0x01, 0x23, 0x45, 0x67 }),
"fully above upper boundary");
}
[TestMethod]
public void TestHash()
{
var memApi = CreateDummyApi(new byte[] { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF });
Assert.ThrowsException<ArgumentOutOfRangeException>(
() => memApi.HashRegion(addr: -5, count: 3),
"fully below lower boundary");
Assert.ThrowsException<ArgumentOutOfRangeException>(
() => memApi.HashRegion(addr: -2, count: 4),
"crosses lower boundary");
Assert.ThrowsException<ArgumentOutOfRangeException>(
() => memApi.HashRegion(addr: -1, count: 10),
"crosses both boundaries");
Assert.AreEqual(
"55C53F5D490297900CEFA825D0C8E8E9532EE8A118ABE7D8570762CD38BE9818",
memApi.HashRegion(addr: 0, count: 8),
"whole domain");
Assert.AreEqual(
"233ABF8F525463C943A10F4DC3080B1BDA19D2EEAA4ACF4676F44689CED29232",
memApi.HashRegion(addr: 1, count: 5),
"strict contains");
Assert.AreEqual(
SHA256Checksum.EmptyFile,
memApi.HashRegion(addr: 3, count: 0),
"empty");
Assert.ThrowsException<ArgumentOutOfRangeException>(
() => memApi.HashRegion(addr: 6, count: 3),
"crosses upper boundary");
Assert.ThrowsException<ArgumentOutOfRangeException>(
() => memApi.HashRegion(addr: 9, count: 4),
"fully above upper boundary");
}
}
}