public void TryGetValue_ReturnsDefaultIfNotExists()
{
var cache = new NanoCache <string, int>();
cache.TryGetValue("item", out var value);
Assert.AreEqual(0, value);
}
public void Set_StoresANewValueIntoTheCache()
{
var cache = new NanoCache <string, int>();
cache.Set("item", 999);
Assert.AreEqual(cache["item"], 999);
}
public void Ctor_UsesDefaultEqualityComparer()
{
var cache = new NanoCache <string, int> {
["a"] = 999
};
Assert.AreEqual(cache["A"], 0);
}
public void TryGetValue_ReturnsTrueIfItemDoesExist()
{
var cache = new NanoCache <string, int> {
["item"] = 1234
};
Assert.IsTrue(cache.TryGetValue("item", out _));
}
public void Count_IsIncrementedWhenItemIsAdded()
{
var cache = new NanoCache <string, int> {
["1"] = 1
};
Assert.AreEqual(1, cache.Count);
}
public void Indexer_StoresANewValueIntoTheCache()
{
var cache = new NanoCache <string, int> {
["item"] = 999
};
Assert.AreEqual(cache["item"], 999);
}
public void Indexer_DoesNotAcknowledgeExpiredItems()
{
var cache = new NanoCache <string, int>();
cache.Set("item", 1234, 10);
Thread.Sleep(100);
Assert.AreEqual(0, cache["item"]);
}
public void TryGetValue_ReturnsItemIfExists()
{
var cache = new NanoCache <string, int> {
["item"] = 1234
};
cache.TryGetValue("item", out var value);
Assert.AreEqual(1234, value);
}
public void Ctor_TakesEqualityComparer_IntoConsideration()
{
var cache = new NanoCache <string, int>(StringComparer.OrdinalIgnoreCase)
{
["a"] = 999
};
Assert.AreEqual(cache["A"], 999);
}
public void TryGetValue_ReturnsFalseIfItemExpired()
{
var cache = new NanoCache <string, int>();
cache.Set("item", 1234, 10);
Thread.Sleep(100);
Assert.IsFalse(cache.TryGetValue("item", out _));
}
public void Remove_ReturnsTrueIfItemRemoved()
{
var cache = new NanoCache <string, int>
{
["item"] = 999
};
Assert.IsTrue(cache.Remove("item"));
}
public void Remove_DoesNotAcknowledgeExpiredItems()
{
var cache = new NanoCache <string, int>();
cache.Set("item", 1234, 10);
Thread.Sleep(100);
Assert.IsFalse(cache.Remove("item"));
}
public void Count_IsDecrementedWhenItemIsRemoved()
{
var cache = new NanoCache <string, int>
{
["1"] = 1
};
cache.Remove("1");
Assert.AreEqual(0, cache.Count);
}
public void Indexer_RemovesTheValueFromTheCacheIfDefaultProvided()
{
var cache = new NanoCache <string, int>
{
["item"] = 999,
["item"] = 0
};
Assert.IsFalse(cache.Remove("item"));
}
public void Indexer_ReplacesAnExistingValueInTheCache()
{
var cache = new NanoCache <string, int>
{
["item"] = 999,
["item"] = 111
};
Assert.AreEqual(cache["item"], 111);
}
public void Set_RefreshesValueOfExpiredItem()
{
var cache = new NanoCache <string, int>();
cache.Set("item", 1234, 10);
Thread.Sleep(100);
cache.Set("item", 9876, 10);
Assert.AreEqual(9876, cache["item"]);
}
public void Remove_RemovesAnExistingItemFromTheCache()
{
var cache = new NanoCache <string, int>
{
["item"] = 999
};
cache.Remove("item");
Assert.AreEqual(cache["item"], 0);
}
public void Count_IncludesExpiredItems()
{
var cache = new NanoCache <string, int>();
cache.Set("1", 1, 10);
Thread.Sleep(100);
Assert.AreEqual(1, cache.Count);
}
public void Count_IsUpdatedWhenExpiredItemIsFlushed2()
{
var cache = new NanoCache <string, int>();
cache.Set("1", 1, 10);
Thread.Sleep(100);
Assert.AreEqual(0, cache["1"]);
Assert.AreEqual(0, cache.Count);
}
public void Count_IsNotIncrementedWhenItemIsUpdated()
{
var cache = new NanoCache <string, int>
{
["1"] = 1,
["1"] = 2
};
Assert.AreEqual(1, cache.Count);
}
public void Count_IsDecrementedWhenItemIsReplacedWithDefaultValue()
{
var cache = new NanoCache <string, int>
{
["1"] = 1,
["1"] = 0
};
Assert.AreEqual(0, cache.Count);
}
public void Set_ReplacesAnExistingValueInTheCache()
{
var cache = new NanoCache <string, int>
{
["item"] = 999
};
cache.Set("item", 111);
Assert.AreEqual(cache["item"], 111);
}
public void Flush_DoesNothingForUnExpiredItems()
{
var cache = new NanoCache <string, int>
{
["1"] = 1
};
cache.Flush();
Assert.AreEqual(1, cache.Count);
}
public void Flush_RemovesTheExpiredItems()
{
var cache = new NanoCache <string, int>();
cache.Set("1", 1, 10);
Thread.Sleep(100);
cache.Flush();
Assert.AreEqual(0, cache.Count);
}
public void Set_RemovesTheValueFromTheCacheIfDefaultProvided()
{
var cache = new NanoCache <string, int>
{
["item"] = 999
};
cache.Set("item", 0);
Assert.IsFalse(cache.Remove("item"));
}
public void Flush_RemovesTheExpiredItemsWhileLeavingTheNormalOnes()
{
var cache = new NanoCache <string, int>();
cache.Set("1", 1, 10);
Thread.Sleep(100);
cache["2"] = 2;
cache.Flush();
Assert.AreEqual(1, cache.Count);
}
public void TryGetValue_ThrowsException_IfKeyIsNull()
{
var cache = new NanoCache <string, int>();
Assert.Throws <ArgumentNullException>(() => cache.TryGetValue(null, out _));
}
public void TryGetValue_ReturnsFalseIfItemDoesNotExist()
{
var cache = new NanoCache <string, int>();
Assert.IsFalse(cache.TryGetValue("item", out _));
}
public void Set_ThrowsException_ForNullKey()
{
var cache = new NanoCache <string, int>();
Assert.Throws <ArgumentNullException>(() => cache.Set(null, 100));
}
public void Set_ThrowsException_ForTtlLessThanMinusOne()
{
var cache = new NanoCache <string, int>();
Assert.Throws <ArgumentOutOfRangeException>(() => cache.Set("a", 1, -2));
}
