예제 #1
0
        public void BasicCreateAndClean()
        {
            Config config = ObjectTestHelper.GetConfigWithCaching();

            ObjectMetadataStore metadata = new ObjectMetadataStore(config);
            ObjectVersionStore versions = new ObjectVersionStore(config, metadata);
            ObjectIndexerCache cache = new ObjectIndexerCache(metadata, versions);

            string objectName = "TestObj";

            try
            {
                // Load up the cache - first we will test that it is not cleaned when it shouldn't be
                for (int i = 0; i < 20; i++) // generate 20 queries and 80 object Ids
                {
                    cache.Set(
                        new int[] { 1, 2, 3, 4 },
                        new object[] { objectName, "Idx" + i + "=2" });
                }

                // Verify the totals
                Assert.AreEqual(20, cache.EnumerateCache().Count());
                CacheTotals totals = cache.Totals;
                Assert.AreEqual(20, totals.TotalQueries);
                Assert.AreEqual(80, totals.TotalValues);
                Assert.IsNotNull(cache.Get(new object[] { objectName, "Idx1=2" }));

                using (var cleaner = new HardPruneCacheCleaner(cache,
                    50,
                    200,
                    2,
                    500)) // run every half second
                {
                    // verify properties
                    Assert.AreEqual(50, cleaner.MaxQueries);
                    Assert.AreEqual(200, cleaner.MaxValues);
                    Assert.AreEqual(2, cleaner.ReductionFactor);
                    Assert.AreEqual(500, cleaner.CleanFrequency);

                    Thread.Sleep(700);
                }

                // Check that no changes occurred
                Assert.AreEqual(20, cache.EnumerateCache().Count());
                totals = cache.Totals;
                Assert.AreEqual(20, totals.TotalQueries);
                Assert.AreEqual(80, totals.TotalValues);
                Assert.IsNotNull(cache.Get(new object[] { objectName, "Idx1=2" }));

                // Fill to max
                for (int i = 20; i < 50; i++)
                {
                    cache.Set(
                        new int[] { 1, 2, 3, 4 },
                        new object[] { objectName, "Idx" + i + "=2" });
                }

                Assert.AreEqual(50, cache.EnumerateCache().Count());
                totals = cache.Totals;
                Assert.AreEqual(50, totals.TotalQueries);
                Assert.AreEqual(200, totals.TotalValues);
                Assert.IsNotNull(cache.Get(new object[] { objectName, "Idx1=2" }));

                using (var cleaner = new HardPruneCacheCleaner(cache,
                    50,
                    200,
                    2,
                    500)) // run every half second
                {
                    Thread.Sleep(700);
                }

                Assert.AreEqual(50, cache.EnumerateCache().Count());
                totals = cache.Totals;
                Assert.AreEqual(50, totals.TotalQueries);
                Assert.AreEqual(200, totals.TotalValues);
                Assert.IsNotNull(cache.Get(new object[] { objectName, "Idx1=2" }));

                // fill to 60 queries - with a cleanFactor of 2 the amount should be cut in half
                for (int i = 50; i < 60; i++)
                {
                    cache.Set(
                        new int[] { 1, 2, 3, 4 },
                        new object[] { objectName, "Idx" + i + "=2" });
                }

                Assert.AreEqual(60, cache.EnumerateCache().Count());
                totals = cache.Totals;
                Assert.AreEqual(60, totals.TotalQueries);
                Assert.AreEqual(240, totals.TotalValues);
                Assert.IsNotNull(cache.Get(new object[] { objectName, "Idx1=2" }));

                using (var cleaner = new HardPruneCacheCleaner(cache,
                    50,
                    200,
                    2,
                    500)) // run every half second
                {
                    Thread.Sleep(700);
                }

                // half of the queries should be gone
                Assert.AreEqual(30, cache.EnumerateCache().Count());
                totals = cache.Totals;
                Assert.AreEqual(30, totals.TotalQueries);
                Assert.AreEqual(120, totals.TotalValues);
                Assert.IsNotNull(cache.Get(new object[] { objectName, "Idx1=2" }));

                // Now overfill
                for (int i = 100; i < 600; i++)
                {
                    cache.Set(
                        new int[] { 1, 2, 3, 4 },
                        new object[] { objectName, "Idx" + i + "=2" });
                }
                Assert.AreEqual(530, cache.EnumerateCache().Count());
                totals = cache.Totals;
                Assert.AreEqual(530, totals.TotalQueries);
                Assert.AreEqual(2120, totals.TotalValues);
                Assert.IsNotNull(cache.Get(new object[] { objectName, "Idx1=2" }));

                // this should cut out half
                using (var cleaner = new HardPruneCacheCleaner(cache,
                    50,
                    200,
                    2,
                    500)) // run every half second
                {
                    Thread.Sleep(700);
                }

                Assert.AreEqual(265, cache.EnumerateCache().Count());
                totals = cache.Totals;
                Assert.AreEqual(265, totals.TotalQueries);
                Assert.AreEqual(1060, totals.TotalValues);
                Assert.IsNotNull(cache.Get(new object[] { objectName, "Idx1=2" }));

                // this should cut out another half
                using (var cleaner = new HardPruneCacheCleaner(cache,
                    50,
                    200,
                    2,
                    500)) // run every half second
                {
                    Thread.Sleep(700);
                }

                Assert.AreEqual(133, cache.EnumerateCache().Count());
                totals = cache.Totals;
                Assert.AreEqual(133, totals.TotalQueries);
                Assert.AreEqual(532, totals.TotalValues);
                Assert.IsNotNull(cache.Get(new object[] { objectName, "Idx1=2" }));
            }
            finally
            {
                cache.Dispose();
                versions.Dispose();
                metadata.Dispose();
            }
        }
예제 #2
0
        public void CreateAndModifySameObjectMultithreaded()
        {
            Config config = ObjectTestHelper.GetConfigWithCaching();

            ObjectMetadataStore metadata = new ObjectMetadataStore(config);
            ObjectVersionStore versions = new ObjectVersionStore(config, metadata);
            ObjectIndexerCache cache = new ObjectIndexerCache(metadata, versions);

            string objectName = "TestObj";
            string intVal1 = ObjectIndex.Create("IntIdx", 5).ToString();
            string strVal1 = ObjectIndex.Create("StrIdx", "Val1").ToString();

            object[] cacheParams = new object[] { objectName, intVal1, strVal1 };
            int[] objectIds = new int[] { 1000, 2000 };
            int nullGetCount = 0;

            try
            {
                // Create a couple of threads that Get and Set a cache item.
                // A third thread periodically expires the Object by changing its version.
                List<Action> actions = new List<Action>();
                for (int i = 0; i < 2; i++)
                {
                    actions.Add(new Action(() =>
                    {
                        int localNullGetCount = 0;

                        for (int loops = 0; loops < 40; loops++)
                        {
                            for (int tryGet = 0; tryGet < 100; tryGet++)
                            {
                                int[] getObjectIds = cache.Get(cacheParams);
                                if (null == getObjectIds)
                                {
                                    cache.Set(objectIds, cacheParams);
                                    ++localNullGetCount;
                                }
                                else
                                {
                                    Assert.AreEqual(objectIds[0], getObjectIds[0]);
                                    Assert.AreEqual(objectIds[1], getObjectIds[1]);
                                }
                            }

                            Thread.Sleep(100);
                        }

                        lock (objectIds)
                        {
                            nullGetCount += localNullGetCount;
                        }
                    }));
                }

                actions.Add(new Action(() =>
                {
                    for (int loops = 0; loops < 40; loops++)
                    {
                        versions.Update(objectName);
                        Thread.Sleep(100);
                    }
                }));

                Parallel.Invoke(actions.ToArray());

                Assert.IsTrue(nullGetCount > 2);
            }
            finally
            {
                cache.Dispose();
                versions.Dispose();
                metadata.Dispose();
            }
        }
예제 #3
0
 public void CreateDefault()
 {
     Config config = ObjectTestHelper.GetConfigWithCaching();
     ObjectMetadataStore metadata = new ObjectMetadataStore(config);
     ObjectVersionStore versions = new ObjectVersionStore(config, metadata);
     ObjectIndexerCache cache = new ObjectIndexerCache(metadata, versions);
     using (var cleaner = new HardPruneCacheCleaner(cache))
     {
         try
         {
             Assert.AreEqual(HardPruneCacheCleaner.DefaultMaxQueries, cleaner.MaxQueries);
             Assert.AreEqual(HardPruneCacheCleaner.DefaultMaxValues, cleaner.MaxValues);
             Assert.AreEqual(HardPruneCacheCleaner.DefaultReductionFactor, cleaner.ReductionFactor);
             Assert.AreEqual(HardPruneCacheCleaner.DefaultCleanFrequency, cleaner.CleanFrequency);
         }
         finally
         {
             cache.Dispose();
             versions.Dispose();
             metadata.Dispose();
         }
     }
 }
예제 #4
0
        public void CreateAndModifyMultithreaded()
        {
            Config config = ObjectTestHelper.GetConfigWithCaching();

            ObjectMetadataStore metadata = new ObjectMetadataStore(config);
            ObjectVersionStore versions = new ObjectVersionStore(config, metadata);
            ObjectIndexerCache cache = new ObjectIndexerCache(metadata, versions);

            try
            {
                // Create 4 actions to simulate 4 threads
                // This test simulates 4 concurrent processes adding and reading items to the cache
                // while they are also removed.
                Action[] actions = new Action[4];

                for (int i = 0; i < 4; i++)
                {
                    string nextObjName = "Obj" + i;
                    actions[i] = new Action(() => {

                        for (int loops = 0; loops < 100; loops++)
                        {
                            object[][] cacheParams = new object[100][];

                            // create 100 cache entries
                            for (int add = 0; add < 100; add++)
                            {
                                cacheParams[add] = new object[] { nextObjName, "Idx" + ((loops * 100) + add) };

                                cache.Set(
                                    new int[] { loops, loops + 1, loops + 2, loops + 3 },
                                    cacheParams[add]);
                            }

                            // read 1000 entries
                            for (int read = 0; read < 1000; read++)
                            {
                                int[] getIds = cache.Get(cacheParams[read % 100]);
                                // may get removed so check for null
                                if (null != getIds)
                                {
                                    Assert.AreEqual(loops, getIds[0]);
                                    Assert.AreEqual(loops + 1, getIds[1]);
                                }
                            }

                            // Remove 20 entries - this can remove objects added by other threads
                            // Linq query is executed once write lock is aquired which is why this works
                            cache.Remove(cache.EnumerateCache().Take(20));

                        }
                        // that 100 times - total at end will equal 8000 entries and 32000 object ids
                    });
                }

                Parallel.Invoke(actions);

                Assert.AreEqual(8000 * actions.Length, cache.EnumerateCache().Count());
                CacheTotals totals = cache.Totals;
                Assert.AreEqual(8000 * actions.Length, totals.TotalQueries);
                Assert.AreEqual(32000 * actions.Length, totals.TotalValues);

                cache.Reset();

                Assert.AreEqual(0, cache.EnumerateCache().Count());
                totals = cache.Totals;
                Assert.AreEqual(0, totals.TotalQueries);
                Assert.AreEqual(0, totals.TotalValues);
            }
            finally
            {
                cache.Dispose();
                versions.Dispose();
                metadata.Dispose();
            }
        }
예제 #5
0
        public void CreateAndModify()
        {
            Config config = ObjectTestHelper.GetConfigWithCaching();

            ObjectMetadataStore metadata = new ObjectMetadataStore(config);
            ObjectVersionStore versions = new ObjectVersionStore(config, metadata);
            ObjectIndexerCache cache = new ObjectIndexerCache(metadata, versions);

            string objectName = "TestObj";
            string intVal1 = ObjectIndex.Create("IntIdx", 5).ToString();
            string strVal1 = ObjectIndex.Create("StrIdx", "Val1").ToString();
            string strVal2 = ObjectIndex.Create("StrIdx", "Val3").ToString();

            object[] cacheParams = new object[] { objectName, intVal1, strVal1 };
            object[] cacheParams2 = new object[] { objectName, intVal1, strVal2 };
            int[] objectIds = new int[] { 1000, 2000 };
            int[] objectIds2 = new int[] { 3000, 4000 };

            try
            {
                Assert.AreEqual(0, cache.EnumerateCache().Count());
                CacheTotals totals = cache.Totals;
                Assert.AreEqual(0, totals.TotalQueries);
                Assert.AreEqual(0, totals.TotalValues);
                Assert.IsNull(cache.Get(cacheParams));

                cache.Reset();

                Assert.AreEqual(0, cache.EnumerateCache().Count());
                totals = cache.Totals;
                Assert.AreEqual(0, totals.TotalQueries);
                Assert.AreEqual(0, totals.TotalValues);
                Assert.IsNull(cache.Get(cacheParams));

                // add one query to cache
                cache.Set(objectIds, cacheParams);

                Assert.AreEqual(1, cache.EnumerateCache().Count());
                totals = cache.Totals;
                Assert.AreEqual(1, totals.TotalQueries);
                Assert.AreEqual(2, totals.TotalValues);

                int[] lookupIds = cache.Get(cacheParams);
                Assert.AreEqual(objectIds.Length, lookupIds.Length);
                Assert.AreEqual(objectIds[0], lookupIds[0]);
                Assert.AreEqual(objectIds[1], lookupIds[1]);

                cache.Reset();

                Assert.AreEqual(0, cache.EnumerateCache().Count());
                totals = cache.Totals;
                Assert.AreEqual(0, totals.TotalQueries);
                Assert.AreEqual(0, totals.TotalValues);
                Assert.IsNull(cache.Get(cacheParams));

                // add more than one query to cache
                cache.Set(objectIds, cacheParams);
                cache.Set(objectIds2, cacheParams2);

                Assert.AreEqual(2, cache.EnumerateCache().Count());
                totals = cache.Totals;
                Assert.AreEqual(2, totals.TotalQueries);
                Assert.AreEqual(4, totals.TotalValues);

                lookupIds = cache.Get(cacheParams);
                Assert.AreEqual(objectIds.Length, lookupIds.Length);
                Assert.AreEqual(objectIds[0], lookupIds[0]);
                Assert.AreEqual(objectIds[1], lookupIds[1]);

                lookupIds = cache.Get(cacheParams2);
                Assert.AreEqual(objectIds2.Length, lookupIds.Length);
                Assert.AreEqual(objectIds2[0], lookupIds[0]);
                Assert.AreEqual(objectIds2[1], lookupIds[1]);

                // add the same query to cache again - make sure it replaces the existing one
                cache.Set(objectIds2, cacheParams2);

                Assert.AreEqual(2, cache.EnumerateCache().Count());
                totals = cache.Totals;
                Assert.AreEqual(2, totals.TotalQueries);
                Assert.AreEqual(4, totals.TotalValues);

                lookupIds = cache.Get(cacheParams);
                Assert.AreEqual(objectIds.Length, lookupIds.Length);
                Assert.AreEqual(objectIds[0], lookupIds[0]);
                Assert.AreEqual(objectIds[1], lookupIds[1]);

                lookupIds = cache.Get(cacheParams2);
                Assert.AreEqual(objectIds2.Length, lookupIds.Length);
                Assert.AreEqual(objectIds2[0], lookupIds[0]);
                Assert.AreEqual(objectIds2[1], lookupIds[1]);

                // remove query from cache
                var entryToRemove = cache.EnumerateCache().Last();
                // we don't know what order they will be returned so find out
                // which value is being removed
                object[] remainingCacheParams = cacheParams;
                int[] remainingObjectIds = objectIds;
                if (entryToRemove.Hash == ObjectIndexerCache.ConstructHash(cacheParams))
                {
                    // then the first entry as removed so the second will be the
                    // remaining entry
                    remainingCacheParams = cacheParams2;
                    remainingObjectIds = objectIds2;
                }
                cache.Remove(new ICacheEntry[] { entryToRemove });

                Assert.AreEqual(1, cache.EnumerateCache().Count());
                totals = cache.Totals;
                Assert.AreEqual(1, totals.TotalQueries);
                Assert.AreEqual(2, totals.TotalValues);

                lookupIds = cache.Get(remainingCacheParams);
                Assert.AreEqual(remainingObjectIds.Length, lookupIds.Length);
                Assert.AreEqual(remainingObjectIds[0], lookupIds[0]);
                Assert.AreEqual(remainingObjectIds[1], lookupIds[1]);

                Assert.IsNull(cache.Get(cacheParams2));
            }
            finally
            {
                cache.Dispose();
                versions.Dispose();
                metadata.Dispose();
            }
        }
예제 #6
0
        public void CacheWithVersionChangeEvent()
        {
            Config config = ObjectTestHelper.GetConfigWithCaching();

            ObjectMetadataStore metadata = new ObjectMetadataStore(config);
            ObjectVersionStore versions = new ObjectVersionStore(config, metadata);
            ObjectIndexerCache cache = new ObjectIndexerCache(metadata, versions);

            string objectName = "TestObj";
            string intVal1 = ObjectIndex.Create("IntIdx", 5).ToString();
            string strVal1 = ObjectIndex.Create("StrIdx", "Val1").ToString();
            string strVal2 = ObjectIndex.Create("StrIdx", "Val3").ToString();

            object[] cacheParams = new object[] { objectName, intVal1, strVal1 };
            object[] cacheParams2 = new object[] { objectName, intVal1, strVal2 };
            int[] objectIds = new int[] { 1000, 2000 };
            int[] objectIds2 = new int[] { 3000, 4000 };

            try
            {
                // add a couple items to cache - they should not be returned
                // once the object's version changes (they become "dirty")
                cache.Set(objectIds, cacheParams);
                cache.Set(objectIds2, cacheParams2);

                Assert.AreEqual(2, cache.EnumerateCache().Count());
                CacheTotals totals = cache.Totals;
                Assert.AreEqual(2, totals.TotalQueries);
                Assert.AreEqual(4, totals.TotalValues);
                Assert.IsNotNull(cache.Get(cacheParams));
                Assert.IsNotNull(cache.Get(cacheParams2));

                versions.Update(objectName);

                // NOTE: Dirty cache entries are not removed from cache as soon as
                // they become dirty. They are removed lazily when Get/Set
                // are called.
                // CacheTotals and Enumerate will return Dirty objects and are
                // only meant to be used by the Cache Cleaner and not directly
                // by the Object Indexer.
                Assert.AreEqual(2, cache.EnumerateCache().Count());
                totals = cache.Totals;
                Assert.AreEqual(2, totals.TotalQueries);
                Assert.AreEqual(4, totals.TotalValues);

                // Since the object is dirty, these should return null.
                Assert.IsNull(cache.Get(cacheParams));
                Assert.IsNull(cache.Get(cacheParams2));

                // Reset the cache values and they should be returned again.
                cache.Set(objectIds, cacheParams);
                cache.Set(objectIds2, cacheParams2);

                Assert.AreEqual(2, cache.EnumerateCache().Count());
                totals = cache.Totals;
                Assert.AreEqual(2, totals.TotalQueries);
                Assert.AreEqual(4, totals.TotalValues);
                Assert.IsNotNull(cache.Get(cacheParams));
                Assert.IsNotNull(cache.Get(cacheParams2));
            }
            finally
            {
                cache.Dispose();
                versions.Dispose();
                metadata.Dispose();
            }
        }
예제 #7
0
        public void CacheWithObjectRemovedEvent()
        {
            Config config = ObjectTestHelper.GetConfigWithCaching();
            string ns = ObjectTestHelper.NameSpace1;
            string obj = ObjectTestHelper.ObjectName1;
            string objectFullName = ObjectNaming.CreateFullObjectName(ns, obj);
            ObjectMetadata objectMetadata = new ObjectMetadata(ns, obj,
                new ObjectIndexMetadata[]
                {
                    new ObjectIndexMetadata("IntIndex1", ObjectIndexType.Integer),
                    new ObjectIndexMetadata("StrIndex1", ObjectIndexType.String, 15)
                });

            // Temporarily use the ObjectService to provision the Object's Metadata.
            using (var svc = new ObjectService(config))
            {
                svc.CreateNameSpace(new ObjectNameSpaceConfig(ns,
                    "ZeroG Test", "Unit Test", DateTime.Now));

                svc.ProvisionObjectStore(objectMetadata);
            }

            ObjectMetadataStore metadata = new ObjectMetadataStore(config);
            ObjectVersionStore versions = new ObjectVersionStore(config, metadata);
            ObjectIndexerCache cache = new ObjectIndexerCache(metadata, versions);

            string intVal1 = ObjectIndex.Create("IntIdx", 5).ToString();
            string strVal1 = ObjectIndex.Create("StrIdx", "Val1").ToString();
            string strVal2 = ObjectIndex.Create("StrIdx", "Val3").ToString();

            object[] cacheParams = new object[] { objectFullName, intVal1, strVal1 };
            object[] cacheParams2 = new object[] { objectFullName, intVal1, strVal2 };
            int[] objectIds = new int[] { 1000, 2000 };
            int[] objectIds2 = new int[] { 3000, 4000 };

            try
            {
                // add a couple items to cache - they should not be cleared
                // when the object's metadata is removed
                cache.Set(objectIds, cacheParams);
                cache.Set(objectIds2, cacheParams2);

                Assert.AreEqual(2, cache.EnumerateCache().Count());
                CacheTotals totals = cache.Totals;
                Assert.AreEqual(2, totals.TotalQueries);
                Assert.AreEqual(4, totals.TotalValues);
                Assert.IsNotNull(cache.Get(cacheParams));
                Assert.IsNotNull(cache.Get(cacheParams2));

                metadata.Remove(objectFullName);

                // NOTE: Dirty cache entries are not removed from cache as soon as
                // they become dirty. They are removed lazily when Get/Set
                // are called.
                // CacheTotals and Enumerate will return Dirty objects and are
                // only meant to be used by the Cache Cleaner and not directly
                // by the Object Indexer.
                Assert.AreEqual(0, cache.EnumerateCache().Count());
                totals = cache.Totals;
                Assert.AreEqual(0, totals.TotalQueries);
                Assert.AreEqual(0, totals.TotalValues);
                Assert.IsNull(cache.Get(cacheParams));
                Assert.IsNull(cache.Get(cacheParams2));

                // The metadata needs to be added back so TestCleanup completes
                metadata.StoreMetadata(objectMetadata);
            }
            finally
            {
                cache.Dispose();
                versions.Dispose();
                metadata.Dispose();
            }
        }
예제 #8
0
        public void CacheWithDependencyVersionChangeEvent()
        {
            Config config = ObjectTestHelper.GetConfigWithCaching();
            string ns = ObjectTestHelper.NameSpace1;
            string obj = ObjectTestHelper.ObjectName1;
            string obj2 = ObjectTestHelper.ObjectName2;
            string objectFullName = ObjectNaming.CreateFullObjectName(ns, obj);
            string objectFullName2 = ObjectNaming.CreateFullObjectName(ns, obj2);

            ObjectMetadata objectMetadata = new ObjectMetadata(ns, obj,
                new ObjectIndexMetadata[]
                {
                    new ObjectIndexMetadata("IntIndex1", ObjectIndexType.Integer),
                    new ObjectIndexMetadata("StrIndex1", ObjectIndexType.String, 15)
                });

            ObjectMetadata objectMetadata2 = new ObjectMetadata(ns, obj2, null,
                new string[] { obj }); // Make Object1 a dependency of Object2.
            // Now whenever Object2's version changes, Object1's change event will fire as well.
            // NOTE: Do not supply Full Object Name as objects can only depend on other objects
            // within their namespace.

            // Temporarily use the ObjectService to provision the Object's Metadata.
            using (var svc = new ObjectService(config))
            {
                svc.CreateNameSpace(new ObjectNameSpaceConfig(ns,
                    "ZeroG Test", "Unit Test", DateTime.Now));

                svc.ProvisionObjectStore(objectMetadata);
                svc.ProvisionObjectStore(objectMetadata2);
            }

            ObjectMetadataStore metadata = new ObjectMetadataStore(config);
            ObjectVersionStore versions = new ObjectVersionStore(config, metadata);
            ObjectIndexerCache cache = new ObjectIndexerCache(metadata, versions);

            string intVal1 = ObjectIndex.Create("IntIdx", 5).ToString();
            string strVal1 = ObjectIndex.Create("StrIdx", "Val1").ToString();
            string strVal2 = ObjectIndex.Create("StrIdx", "Val3").ToString();

            object[] cacheParams = new object[] { objectFullName, intVal1, strVal1 };
            object[] cacheParams2 = new object[] { objectFullName, intVal1, strVal2 };
            int[] objectIds = new int[] { 1000, 2000 };
            int[] objectIds2 = new int[] { 3000, 4000 };

            try
            {
                // add a couple items to cache - they should not be returned
                // once the objects dependency object version changes
                cache.Set(objectIds, cacheParams);
                cache.Set(objectIds2, cacheParams2);

                Assert.AreEqual(2, cache.EnumerateCache().Count());
                CacheTotals totals = cache.Totals;
                Assert.AreEqual(2, totals.TotalQueries);
                Assert.AreEqual(4, totals.TotalValues);
                Assert.IsNotNull(cache.Get(cacheParams));
                Assert.IsNotNull(cache.Get(cacheParams2));

                versions.Update(objectFullName2);

                Assert.AreEqual(2, cache.EnumerateCache().Count());
                totals = cache.Totals;
                Assert.AreEqual(2, totals.TotalQueries);
                Assert.AreEqual(4, totals.TotalValues);

                Assert.IsNull(cache.Get(cacheParams));
                Assert.IsNull(cache.Get(cacheParams2));

                cache.Set(objectIds, cacheParams);
                cache.Set(objectIds2, cacheParams2);

                Assert.AreEqual(2, cache.EnumerateCache().Count());
                totals = cache.Totals;
                Assert.AreEqual(2, totals.TotalQueries);
                Assert.AreEqual(4, totals.TotalValues);
                Assert.IsNotNull(cache.Get(cacheParams));
                Assert.IsNotNull(cache.Get(cacheParams2));
            }
            finally
            {
                cache.Dispose();
                versions.Dispose();
                metadata.Dispose();
            }
        }