public async void ReadEntry_EntryDoesNotExist_ReturnsNull()
{
const string cacheKey = "test-cache-key";
using (IMemoryCache memoryCache = GetMemoryCache())
{
MemoryCacheAdapter memoryCacheAdapter = new MemoryCacheAdapter(memoryCache, slidingExpiration: TimeSpan.FromMinutes(1));
Assert.Null(await memoryCacheAdapter.ReadEntry <string>(cacheKey));
}
}
public async void ReadEntry_EntryExists_ReturnsEntry()
{
const string cacheKey = "test-cache-key";
const string value = "test-value";
DateTime absoluteExpiration = new DateTime(year: 2018, month: 3, day: 17, hour: 8, minute: 0, second: 0);
using (IMemoryCache memoryCache = GetMemoryCache())
using (CurrentTime.UseMockUtcNow(absoluteExpiration.AddHours(-1)))
{
memoryCache.Set(cacheKey, new CacheEntry <string>(value, absoluteExpiration));
MemoryCacheAdapter memoryCacheAdapter = new MemoryCacheAdapter(memoryCache, slidingExpiration: TimeSpan.FromMinutes(1));
CacheEntry <string>?cacheEntry = await memoryCacheAdapter.ReadEntry <string>(cacheKey);
Assert.NotNull(cacheEntry);
Assert.Equal(actual: cacheEntry !.Value, expected: value);
Assert.Equal(actual: cacheEntry !.AbsoluteExpiration, expected: absoluteExpiration);
}
}