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new: more tests for PagedMemoryRangeCoalescingEnumerator showing coalescing of contiguous segments

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This commit is contained in:
Jim Horvath 2024-02-08 14:53:34 -05:00
parent d8c384b073
commit caa4e6d1e6
1 changed files with 68 additions and 0 deletions
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68
src/Ryujinx.Tests.Memory/RangeTests/PagedMemoryRangeCoalescingEnumeratorTests.cs
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@ -89,5 +89,73 @@ namespace Ryujinx.Tests.Memory.RangeTests
Assert.AreEqual(StartAddress, results[0].Address);
Assert.AreEqual(Size, results[0].Size);
}
[Test]
public void PagedMemoryRangeCoalescingEnumerator_ForPartiallyDiscontiguous4PagesWithPartialLast_HasCorrectResults()
{
// Arrange
const int StartAddress = 0;
const int Size = 14;
const int PageSize = 4;
var memoryMap = new Dictionary<ulong, ulong>(){
{ 0ul, 0ul },
{ 4ul, 4ul },
{ 8ul, 20ul },
{ 12ul, 24ul },
};
ulong MemoryMapLookup(ulong a) => memoryMap.TryGetValue(a, out var value) ? value : a;
var enumerator = new PagedMemoryRangeCoalescingEnumerator(StartAddress, Size, PageSize, MemoryMapLookup);
// Act
var results = new List<MemoryRange>();
foreach (var memoryRange in enumerator)
results.Add(memoryRange);
// Assert
Assert.AreEqual(2, results.Count);
Assert.AreEqual(0, results[0].Address);
Assert.AreEqual(PageSize * 2, results[0].Size);
Assert.AreEqual(20, results[1].Address);
Assert.AreEqual(PageSize + (Size % PageSize), results[1].Size);
}
[Test]
public void PagedMemoryRangeCoalescingEnumerator_ForFullyDiscontiguous4PagesWithPartialLast_HasCorrectResults()
{
// Arrange
const int StartAddress = 0;
const int Size = 14;
const int PageSize = 4;
var memoryMap = new Dictionary<ulong, ulong>(){
{ 0ul, 0ul },
{ 4ul, 10ul },
{ 8ul, 20ul },
{ 12ul, 30ul },
};
ulong MemoryMapLookup(ulong a) => memoryMap.TryGetValue(a, out var value) ? value : a;
var enumerator = new PagedMemoryRangeCoalescingEnumerator(StartAddress, Size, PageSize, MemoryMapLookup);
// Act
var results = new List<MemoryRange>();
foreach (var memoryRange in enumerator)
results.Add(memoryRange);
// Assert
Assert.AreEqual(4, results.Count);
Assert.AreEqual(0, results[0].Address);
Assert.AreEqual(PageSize, results[0].Size);
Assert.AreEqual(10, results[1].Address);
Assert.AreEqual(PageSize, results[1].Size);
Assert.AreEqual(20, results[2].Address);
Assert.AreEqual(PageSize, results[2].Size);
Assert.AreEqual(30, results[3].Address);
Assert.AreEqual(Size % PageSize, results[3].Size);
}
}
}