public void GetOrAddTest()
{
var provider = new MemoryCacheProvider();
var cacheKey = new CacheKey("AddTest" + DateTime.Now.Ticks);
var value = "Test Value " + DateTime.Now;
var cachePolicy = new CachePolicy();
int callCount = 0;
Func <CacheKey, object> valueFactory = k =>
{
callCount++;
return(value);
};
var result = provider.GetOrAdd(cacheKey, valueFactory, cachePolicy);
result.Should().Be(value);
callCount.Should().Be(1);
// look in underlying MemoryCache
string innerKey = MemoryCacheProvider.GetKey(cacheKey);
var cachedValue = MemoryCache.Default.Get(innerKey);
cachedValue.Should().NotBeNull();
cachedValue.Should().Be(value);
callCount = 0;
var result2 = provider.GetOrAdd(cacheKey, valueFactory, cachePolicy);
result2.Should().Be(value);
callCount.Should().Be(0);
}