/// <summary>
/// Returns copy of cached object
/// </summary>
public void TestReturnCopyOfCachedOject()
{
CacheModel cacheModel = new CacheModel("test", typeof(LruCache).FullName, 60, 1, true);
Order order = new Order();
order.CardNumber = "CardNumber";
order.Date = DateTime.Now;
order.LineItemsCollection = new LineItemCollection();
LineItem item = new LineItem();
item.Code = "Code1";
order.LineItemsCollection.Add(item);
item = new LineItem();
item.Code = "Code2";
order.LineItemsCollection.Add(item);
CacheKey key = new CacheKey();
key.Update(order);
int firstId = HashCodeProvider.GetIdentityHashCode(order);
cacheModel[ key ] = order;
Order order2 = cacheModel[ key ] as Order;
int secondId = HashCodeProvider.GetIdentityHashCode(order2);
Assert.AreNotEqual(firstId, secondId, "hasCode equal");
}
/// <summary>
/// Returns reference to same instance of cached object
/// </summary>
public void TestReturnInstanceOfCachedOject()
{
CacheModel cacheModel = new CacheModel("test", typeof(LruCache).FullName, 60, 1, false);
//cacheModel.FlushInterval = interval;
//cacheModel.IsReadOnly = true;
//cacheModel.IsSerializable = false;
Order order = new Order();
order.CardNumber = "CardNumber";
order.Date = DateTime.Now;
order.LineItemsCollection = new LineItemCollection();
LineItem item = new LineItem();
item.Code = "Code1";
order.LineItemsCollection.Add(item);
item = new LineItem();
item.Code = "Code2";
order.LineItemsCollection.Add(item);
CacheKey key = new CacheKey();
key.Update(order);
int firstId = HashCodeProvider.GetIdentityHashCode(order);
cacheModel[ key ] = order;
Order order2 = cacheModel[ key ] as Order;
int secondId = HashCodeProvider.GetIdentityHashCode(order2);
Assert.AreEqual(firstId, secondId, "hasCode different");
}
public void CacheKeys_should_not_be_equal_due_to_order()
{
CacheKey key1 = new CacheKey(new Object[] { 1, "hello", null });
CacheKey key2 = new CacheKey(new Object[] { 1, null, "hello" });
Assert.That(key1, Is.Not.EqualTo(key2));
Assert.That(key2, Is.Not.EqualTo(key1));
Assert.That(key1.GetHashCode(), Is.Not.EqualTo(key2.GetHashCode()));
Assert.That(key1.ToString(), Is.Not.EqualTo(key2.ToString()));
}
public void CacheKeys_should_not_be_equal()
{
DateTime date = DateTime.Now;
CacheKey key1 = new CacheKey(new Object[] { 1, "hello", null, new DateTime(date.Ticks) });
CacheKey key2 = new CacheKey(new Object[] { 1, "hello", null, new DateTime(date.Ticks+5) });
Assert.That(key1, Is.Not.EqualTo(key2));
Assert.That(key2, Is.Not.EqualTo(key1));
Assert.That(key1.GetHashCode(), Is.Not.EqualTo(key2.GetHashCode()));
Assert.That(key1.ToString(), Is.Not.EqualTo(key2.ToString()));
}
public void TestCacheHit()
{
CacheModel cache = GetCacheModel();
CacheKey key = new CacheKey();
key.Update("testKey");
string value = "testValue";
cache[key] = value;
object returnedObject = cache[key];
Assert.AreEqual(value, returnedObject);
Assert.AreEqual(HashCodeProvider.GetIdentityHashCode(value), HashCodeProvider.GetIdentityHashCode(returnedObject));
}
public void CacheKeys_empty_and_null_should_be_equal()
{
CacheKey key1 = new CacheKey();
CacheKey key2 = new CacheKey();
Assert.That(key1, Is.EqualTo(key2));
Assert.That(key2, Is.EqualTo(key1));
key1.Update(null);
key2.Update(null);
Assert.That(key1, Is.EqualTo(key2));
Assert.That(key2, Is.EqualTo(key1));
key1.Update(null);
key2.Update(null);
Assert.That(key1, Is.EqualTo(key2));
Assert.That(key2, Is.EqualTo(key1));
}
public void TestCacheHitMiss()
{
CacheModel cache = GetCacheModel();
CacheKey key = new CacheKey();
key.Update("testKey");
string value = "testValue";
cache[key] = value;
object returnedObject = cache[key];
Assert.AreEqual(value, returnedObject);
Assert.AreEqual(HashCodeProvider.GetIdentityHashCode(value), HashCodeProvider.GetIdentityHashCode(returnedObject));
CacheKey wrongKey = new CacheKey();
wrongKey.Update("wrongKey");
returnedObject = cache[wrongKey];
Assert.IsTrue(!value.Equals(returnedObject));
Assert.IsNull(returnedObject) ;
//Assert.AreEqual(0.5, cache.HitRatio);
}
public void TestCacheMiss()
{
CacheModel cache = GetCacheModel();
CacheKey key = new CacheKey();
key.Update("testKey");
string value = "testValue";
cache[key] = value;
CacheKey wrongKey = new CacheKey();
wrongKey.Update("wrongKey");
object returnedObject = cache[wrongKey];
Assert.IsTrue(!value.Equals(returnedObject));
Assert.IsNull(returnedObject) ;
//Assert.AreEqual(0, cache.HitRatio);
}
public void TestCacheNullObject()
{
CacheModel cache = GetCacheModel();
CacheKey key = new CacheKey();
key.Update("testKey");
cache[key] = null;
object returnedObject = cache[key];
Assert.AreEqual(CacheModel.NULL_OBJECT, returnedObject);
Assert.AreEqual(HashCodeProvider.GetIdentityHashCode(CacheModel.NULL_OBJECT), HashCodeProvider.GetIdentityHashCode(returnedObject));
}
public void CacheKey_with_same_hashcode_shoul_be_equal()
{
CacheKey key1 = new CacheKey();
CacheKey key2 = new CacheKey();
key1.Update("HS1CS001");
key2.Update("HS1D4001");
/*
The string hash algorithm is not an industry standard and is not guaranteed to produce the same behaviour between versions.
And in fact it does not. The .NET 2.0 CLR uses a different algorithm for string hashing than the .NET 1.1 CLR.
*/
Assert.Ignore("The .NET 2.0 CLR uses a different algorithm for string hashing than the .NET 1.1 CLR.");
}
private static void DoTestClassEquals(long firstLong, long secondLong)
{
// Two cache keys are equal except for the parameter.
CacheKey key = new CacheKey();
key.Update(firstLong);
CacheKey aDifferentKey = new CacheKey();
key.Update(secondLong);
Assert.IsFalse(aDifferentKey.Equals(key)); // should not be equal.
}
public void CacheKey_with_2_params_having_same_hashcode_shoul_not_be_equal()
{
CacheKey key1 = new CacheKey();
CacheKey key2 = new CacheKey();
key1.Update("HS1CS001");
key1.Update("HS1D4001");
key2.Update("HS1D4001");
key2.Update("HS1CS001");
Assert.Ignore("The .NET 2.0 CLR uses a different algorithm for string hashing than the .NET 1.1 CLR.");
}
/// <summary>
/// Adds an item with the specified key and value into cached data.
/// Gets a cached object with the specified key.
/// </summary>
/// <value>The cached object or <c>null</c></value>
public object this[CacheKey key]
{
get { return cache[key]; }
set { cache[key] = value;}
}
