public void Test_TRexSpatialMemoryCacheStorageTests_MaxEpochTokenAgeOnGet()
{
var storage = new TRexSpatialMemoryCacheStorage <ITRexMemoryCacheItem>(1000, 500);
var dummyCache = new TRexSpatialMemoryCacheContext(new TRexSpatialMemoryCache(1000, 1000, 0), storage);
// Fill half slots
for (int i = 0; i < 500; i++)
{
storage.Add(new TRexSpatialMemoryCacheContextTests_Element()
{
CacheOriginX = (int)(1000 + i * SubGridTreeConsts.SubGridTreeDimension),
CacheOriginY = 1000,
SizeInBytes = 1000
}, dummyCache);
}
var currentMRUHead = storage.MRUHead;
// Get each item in the same order and verify they are not touched and moved to the MRUHead
for (int i = 0; i < 500; i++)
{
var item = storage.Get(i);
Assert.True(storage.MRUHead == currentMRUHead, $"MRUHead changed unexpectedly after getting item {item}: storage.MRUHead = {storage.MRUHead}, currentMRUHead = {currentMRUHead}");
}
// Fill remaining slots
for (int i = 500; i < 1000; i++)
{
storage.Add(new TRexSpatialMemoryCacheContextTests_Element()
{
CacheOriginX = (int)(1000 + i * SubGridTreeConsts.SubGridTreeDimension),
CacheOriginY = 1000,
SizeInBytes = 1000
}, dummyCache);
}
// Get each item in the same order and verify they are touched and moved to the MRUHead
for (int i = 0; i < 1000; i++)
{
var item = storage.Get(i);
Assert.True(storage.MRUHead == i, $"Referenced item not promoted to MRU head after getting item {item} at index {i}, MRUHead = {storage.MRUHead}");
}
}
public void Test_TRexSpatialMemoryCacheStorageTests_GetAfterRemove()
{
var storage = new TRexSpatialMemoryCacheStorage <ITRexMemoryCacheItem>(100, 50);
var dummyCache = new TRexSpatialMemoryCacheContext(new TRexSpatialMemoryCache(1000, 1000, 0), storage);
var item = new TRexSpatialMemoryCacheContextTests_Element
{
SizeInBytes = 0,
CacheOriginX = 2000,
CacheOriginY = 3000
};
var index = storage.Add(item, dummyCache);
Assert.True(storage.TokenCount == 1, $"Element count incorrect after add (= {storage.TokenCount})");
Assert.True(storage.Get(index) != null);
// Remove the item
storage.Remove(index);
Assert.True(storage.Get(index) == null, "Was able to extract item after invalidation");
Assert.True(storage.TokenCount == 0, $"Element count incorrect after get after invalidation(= {storage.TokenCount})");
}
public void Test_TRexSpatialMemoryCacheStorageTests_GetElement()
{
var storage = new TRexSpatialMemoryCacheStorage <ITRexMemoryCacheItem>(100, 50);
var dummyCache = new TRexSpatialMemoryCacheContext(new TRexSpatialMemoryCache(1000, 1000, 0), storage);
var item = new TRexSpatialMemoryCacheContextTests_Element
{
SizeInBytes = 0,
CacheOriginX = 2000,
CacheOriginY = 3000
};
var index = storage.Add(item, dummyCache);
Assert.True(storage.TokenCount == 1, $"Element count incorrect (= {storage.TokenCount})");
var getItem = storage.Get(index);
Assert.True(ReferenceEquals(item, getItem), "Item retrieved from storage not same as item placed in storage");
}