public async Task ReadChildrenUpdatesIndividualItems()
{
AutoCacheOptions.SaveCollections = true;
AutoCacheOptions.AbsoluteExpirationRelativeToNow = TimeSpan.FromSeconds(10);
_autoCache = new ManyToOneAutoCache <ItemWithParentId, Guid>(_storage, Cache, null, AutoCacheOptions);
var parentId = Guid.NewGuid();
var parent = new ItemWithParentId(parentId, "ParentA");
await PrepareStorageAndCacheAsync(parentId, parent, null);
var childId1 = Guid.NewGuid();
var child1A = new ItemWithParentId(childId1, "Child1A", parentId);
await PrepareStorageAndCacheAsync(childId1, child1A, null);
var childId2 = Guid.NewGuid();
var child2A = new ItemWithParentId(childId2, "Child2A", parentId);
await PrepareStorageAndCacheAsync(childId2, child2A, null);
var result = await _autoCache.ReadChildrenAsync(parentId);
UT.Assert.IsNotNull(result);
await _autoCache.DelayUntilNoOperationActiveAsync(parentId);
await VerifyAsync(childId1, child1A);
await VerifyAsync(childId2, child2A);
}
public async Task DeleteChildren()
{
AutoCacheOptions.SaveCollections = true;
AutoCacheOptions.AbsoluteExpirationRelativeToNow = TimeSpan.FromSeconds(10);
_autoCache = new ManyToOneAutoCache <ItemWithParentId, Guid>(_storage, Cache, null, AutoCacheOptions);
var parentId = Guid.NewGuid();
var parent = new ItemWithParentId(parentId, "ParentA");
await PrepareStorageAndCacheAsync(parentId, parent, null);
var childId1 = Guid.NewGuid();
var child1A = new ItemWithParentId(childId1, "Child1A", parentId);
await PrepareStorageAndCacheAsync(childId1, child1A, null);
var childId2 = Guid.NewGuid();
var child2A = new ItemWithParentId(childId2, "Child2A", parentId);
await PrepareStorageAndCacheAsync(childId2, child2A, null);
// Read into cache
await _autoCache.ReadChildrenAsync(parentId);
await _autoCache.DeleteChildrenAsync(parentId);
await _autoCache.DelayUntilNoOperationActiveAsync(parentId);
// Even though the items have been updated, the result will be fetched from the cache.
var result = await _autoCache.ReadChildrenAsync(parentId);
UT.Assert.IsNotNull(result);
var enumerable = result as ItemWithParentId[] ?? result.ToArray();
UT.Assert.AreEqual(0, enumerable.Length);
}
public async Task ReadChildren()
{
AutoCacheOptions.SaveCollections = true;
AutoCacheOptions.AbsoluteExpirationRelativeToNow = TimeSpan.FromSeconds(10);
_autoCache = new ManyToOneAutoCache <ItemWithParentId, Guid>(_storage, Cache, null, AutoCacheOptions);
var parentId = Guid.NewGuid();
var parent = new ItemWithParentId(parentId, "ParentA");
await PrepareStorageAndCacheAsync(parentId, parent, null);
var childId1 = Guid.NewGuid();
var child1A = new ItemWithParentId(childId1, "Child1A", parentId);
await PrepareStorageAndCacheAsync(childId1, child1A, null);
var childId2 = Guid.NewGuid();
var child2A = new ItemWithParentId(childId2, "Child2A", parentId);
await PrepareStorageAndCacheAsync(childId2, child2A, null);
var result = await _autoCache.ReadChildrenAsync(parentId);
UT.Assert.IsNotNull(result);
var enumerable = result as ItemWithParentId[] ?? result.ToArray();
UT.Assert.AreEqual(2, enumerable.Length);
UT.Assert.IsTrue(enumerable.Contains(child1A));
UT.Assert.IsTrue(enumerable.Contains(child2A));
await _autoCache.DelayUntilNoOperationActiveAsync();
var child1B = new ItemWithParentId(childId1, "Child1B", parentId);
await _storage.UpdateAsync(childId1, child1B);
var child2B = new ItemWithParentId(childId2, "Child2B", parentId);
await _storage.UpdateAsync(childId2, child2B);
// Even though the items have been updated, the result will be fetched from the cache.
result = await _autoCache.ReadChildrenAsync(parentId);
UT.Assert.IsNotNull(result);
enumerable = result as ItemWithParentId[] ?? result.ToArray();
UT.Assert.AreEqual(2, enumerable.Length);
UT.Assert.IsTrue(enumerable.Contains(child1A), $"Missing {child1A.Value} in " + string.Join(", ", enumerable.Select(item => item.Value)));
UT.Assert.IsTrue(enumerable.Contains(child2A), $"Missing {child2A.Value} in " + string.Join(", ", enumerable.Select(item => item.Value)));
}