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[Kernel] added wide string formatting coverage

This commit is contained in:
ParantezTech 2026-09-20 06:35:16 +03:00
parent 1e790e6aa5
commit 63147d0cbd
1 changed files with 46 additions and 0 deletions
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46
tests/SharpEmu.Libs.Tests/Kernel/KernelMemoryCompatExportsTests.cs
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@ -27,6 +27,52 @@ public sealed class KernelMemoryCompatExportsTests
private const ulong SpanStartOutAddress = GuestMemoryBase + 0x108;
private const ulong SpanSizeOutAddress = GuestMemoryBase + 0x110;
[Theory]
[InlineData(false)]
[InlineData(true)]
public void UppercaseStringConversion_ConsumesWideArgumentBetweenNarrowStrings(bool useVaList)
{
var memory = new FakeCpuMemory(GuestMemoryBase, 0x2000);
var context = new CpuContext(memory, Generation.Gen5);
memory.WriteCString(GuestMemoryBase + 0x100, "assets");
Assert.True(memory.TryWrite(GuestMemoryBase + 0x200, Encoding.Unicode.GetBytes("armor\0")));
memory.WriteCString(GuestMemoryBase + 0x300, "body");
const string format = "%s/%S_%s.bin";
string rendered;
if (useVaList)
{
var arguments = GuestMemoryBase + 0x400;
var savedRegisters = GuestMemoryBase + 0x500;
Assert.True(context.TryWriteUInt64(arguments, 48UL << 32));
Assert.True(context.TryWriteUInt64(arguments + 8, GuestMemoryBase + 0x600));
Assert.True(context.TryWriteUInt64(arguments + 16, savedRegisters));
Assert.True(context.TryWriteUInt64(savedRegisters, GuestMemoryBase + 0x100));
Assert.True(context.TryWriteUInt64(savedRegisters + 8, GuestMemoryBase + 0x200));
Assert.True(context.TryWriteUInt64(savedRegisters + 16, GuestMemoryBase + 0x300));
Assert.True(KernelMemoryCompatExports.TryFormatStringFromVaList(context, format, arguments, out rendered));
}
else
{
context[CpuRegister.Rcx] = GuestMemoryBase + 0x100;
context[CpuRegister.R8] = GuestMemoryBase + 0x200;
context[CpuRegister.R9] = GuestMemoryBase + 0x300;
rendered = KernelMemoryCompatExports.FormatStringFromVarArgs(context, format, 3);
}
Assert.Equal("assets/armor_body.bin", rendered);
}
[Theory]
[InlineData("%8.3S", " arm")]
[InlineData("%-8.3S", "arm ")]
public void UppercaseStringConversion_UsesExistingWideStringFormatting(string format, string expected)
{
var memory = new FakeCpuMemory(GuestMemoryBase, 0x1000);
var context = new CpuContext(memory, Generation.Gen5);
Assert.True(memory.TryWrite(GuestMemoryBase + 0x100, Encoding.Unicode.GetBytes("armor\0")));
context[CpuRegister.Rcx] = GuestMemoryBase + 0x100;
Assert.Equal(expected, KernelMemoryCompatExports.FormatStringFromVarArgs(context, format, 3));
}
[Fact]
public void PosixStat_MissingFileReturnsMinusOne()
{