public void GrabHandleFromEmptyCache()
{
using (SafeHeapHandleCache cache = new SafeHeapHandleCache(minSize: 5, maxSize: 100, maxHandles: 2))
{
var handle = cache.Acquire();
Assert.NotNull(handle);
Assert.Equal((ulong)5, handle.ByteLength);
}
}
public void LatestPopped()
{
using (SafeHeapHandleCache cache = new SafeHeapHandleCache(minSize: 5, maxSize: 100, maxHandles: 2))
{
var first = cache.Acquire();
var second = cache.Acquire();
cache.Release(first);
cache.Release(second);
Assert.Same(second, cache.Acquire());
Assert.Same(first, cache.Acquire());
}
}
public void CachedCountTest(int maxCount, int itemsToCache, int expected)
{
using (SafeHeapHandleCache cache = new SafeHeapHandleCache(minSize: 5, maxSize: 100, maxHandles: maxCount))
{
for (int i = 0; i < itemsToCache; i++)
{
cache.Release(new SafeHeapHandle(10));
}
int count = cache._handleCache.Count(h => h != null);
Assert.Equal(expected, count);
}
}
public void OldestPushedOff()
{
using (SafeHeapHandleCache cache = new SafeHeapHandleCache(minSize: 5, maxSize: 100, maxHandles: 2))
{
var first = cache.Acquire();
var second = cache.Acquire();
var third = cache.Acquire();
cache.Release(first);
cache.Release(second);
cache.Release(third);
Assert.True(first.IsClosed);
Assert.False(second.IsClosed);
Assert.False(third.IsClosed);
}
}
static NativeBuffer()
{
s_emptyHandle = new EmptySafeHandle();
s_handleCache = new SafeHeapHandleCache();
}