public void AddNotOutOfRange_MustAllInCache()
{
var lru = new LruCacher <int, string>(2);
lru.Add(1, "a");
lru.Add(2, "b");
var dic = lru.Datas;
Assert.AreEqual(lru.Get(1), dic[1]);
Assert.AreEqual(lru.Get(2), dic[2]);
Assert.IsNotNull(lru.SyncRoot);
Assert.AreEqual(2, lru.Max);
var aval = lru.Get(1);
Assert.AreEqual("a", aval);
var bval = lru.Get(2);
Assert.AreEqual("b", bval);
var nval = lru.Get(-1);
Assert.IsNull(nval);
var res = lru.TryGetValue(1, out var v);
Assert.IsTrue(res);
Assert.AreEqual("a", v);
res = lru.TryGetValue(888, out v);
Assert.IsFalse(res);
Assert.IsNull(v);
}
public AzureStoreService(BlobServiceClient blobServiceClient,
IAddressToFileNameProvider addressToFileNameProvider,
int cacheSize = FileStoreService.DefaultCacheSize)
{
this.blobServiceClient = blobServiceClient;
createdCacher = new LruCacher <string, bool>(cacheSize);
this.addressToFileNameProvider = addressToFileNameProvider ?? throw new ArgumentNullException(nameof(addressToFileNameProvider));
}
public void AddSomeValue_Clear_MustNothingInCache()
{
var lru = new LruCacher <int, string>(2);
lru.Add(1, "a");
lru.Add(2, "b");
lru.Clear();
Assert.AreEqual(0, lru.Count);
}
public void AddSomeValue_ContainsExisted_MustReturnTrue()
{
var lru = new LruCacher <int, string>(2);
lru.Add(1, "a");
var val = lru.ContainsKey(1);
Assert.IsTrue(val);
val = lru.ContainsKey(3);
Assert.IsFalse(val);
}
public void AddExistsValue_MustPutItHead()
{
var lru = new LruCacher <int, string>(2);
lru.Add(1, "a");
lru.Add(2, "b");
lru.Add(1, "c");
lru.Add(3, "q");
Assert.AreEqual("c", lru.Get(1));
Assert.IsNull(lru.Get(2));
}
public void AddSomeValue_RemoveIt_ItemMustRemoved()
{
var lru = new LruCacher <int, string>(2);
lru.Add(1, "a");
lru.Add(2, "b");
var val = lru.Remove(1, out var v);
Assert.IsTrue(val);
Assert.AreEqual(v, "a");
Assert.AreEqual(1, lru.Count);
val = lru.Remove(99, out v);
Assert.IsFalse(val);
Assert.IsNull(v);
}
public void AddSomeValue_RemoveItem_RemovedEventMustBeFired()
{
var lru = new LruCacher <int, string>(2);
lru.Add(1, "a");
int rk = default;
string rv = default;
lru.Removed += (a, b) =>
{
rk = a;
rv = b;
};
lru.Remove(1, out _);
Assert.AreEqual(1, rk);
Assert.AreEqual("a", rv);
}
public void GetOrAdd_ValueMustBeAddOrGet()
{
var modify = 0;
var lru = new LruCacher <int, string>(2);
var v = lru.GetOrAdd(1, () =>
{
modify++;
return("a");
});
var val = lru.Get(1);
Assert.AreEqual("a", v);
Assert.AreEqual("a", val);
Assert.AreEqual(1, lru.Count);
v = lru.GetOrAdd(1, () =>
{
modify++;
return("a");
});
Assert.AreEqual(1, lru.Count);
Assert.AreEqual("a", v);
}
public void AddOutOfRange_MustRemovedPrevItem()
{
var lru = new LruCacher <int, string>(2);
Assert.AreEqual(2, lru.Max);
lru.Add(1, "a");
lru.Add(2, "b");
lru.Add(3, "c");
var val1 = lru.Get(1);
Assert.IsNull(val1);
Assert.AreEqual(2, lru.Count);
lru.Get(3);
lru.Get(2);
lru.Add(4, "d");
var val2 = lru.Get(3);
Assert.IsNull(val2);
var val3 = lru.Get(2);
Assert.AreEqual("b", val3);
}
