private static void TestProvider(AsyncSearchProvider provider)
{
var session = new AsyncSearchSession();
var ctx = SearchContext.Empty;
var items = new List <SearchItem>();
var enumerable = provider.fetchItems(ctx, items, provider);
Assert.IsEmpty(items);
session.Reset(enumerable);
// Test fetching all objects
var total = AsyncSearchProvider.NumberNullItems + AsyncSearchProvider.NumberSearchItems;
session.FetchSome(items, total, false);
Assert.AreEqual(AsyncSearchProvider.NumberSearchItems, items.Count);
items = new List <SearchItem>();
session.FetchSome(items, total, false);
Assert.AreEqual(0, items.Count); // Should be empty since enumerator is at the end
enumerable = provider.fetchItems(ctx, items, provider);
session.Reset(enumerable);
session.FetchSome(items, AsyncSearchProvider.NumberSearchItems, false);
Assert.AreEqual(AsyncSearchProvider.NumberSearchItems - AsyncSearchProvider.NumberNullItems, items.Count);
// Test fetching non-null objects
enumerable = provider.fetchItems(ctx, items, provider);
session.Reset(enumerable);
session.FetchSome(items, total, true);
Assert.AreEqual(AsyncSearchProvider.NumberSearchItems, items.Count);
items = new List <SearchItem>();
session.FetchSome(items, total, false);
Assert.AreEqual(0, items.Count); // Should be empty since enumerator is at the end
enumerable = provider.fetchItems(ctx, items, provider);
session.Reset(enumerable);
session.FetchSome(items, AsyncSearchProvider.NumberSearchItems, true);
Assert.AreEqual(AsyncSearchProvider.NumberSearchItems, items.Count);
// Fetch items time constrained
var maxFetchTimeMs = 1;
items = new List <SearchItem>();
provider.UseSleep = true;
provider.SleepTimeMS = 5;
session.Reset(enumerable);
session.FetchSome(items, maxFetchTimeMs);
Assert.AreEqual(0, items.Count);
// Fetch items with time and size constraints
items = new List <SearchItem>();
enumerable = provider.fetchItems(ctx, items, provider);
session.Reset(enumerable);
provider.SleepTimeMS = 1;
maxFetchTimeMs = provider.SleepTimeMS * AsyncSearchProvider.NumberNullItems;
session.FetchSome(items, AsyncSearchProvider.NumberSearchItems, true, maxFetchTimeMs);
Assert.Less(items.Count, AsyncSearchProvider.NumberSearchItems);
}
/// <summary>
/// Returns the specified provider's async search session.
/// </summary>
/// <param name="providerId"></param>
/// <returns>The provider's async search session.</returns>
public AsyncSearchSession GetProviderSession(string providerId)
{
if (!m_SearchSessions.TryGetValue(providerId, out var session))
{
session = new AsyncSearchSession();
session.asyncItemReceived += OnProviderAsyncItemReceived;
m_SearchSessions.Add(providerId, session);
}
return(session);
}
/// <summary>
/// Returns the specified provider's async search session.
/// </summary>
/// <param name="providerId"></param>
/// <returns>The provider's async search session.</returns>
public AsyncSearchSession GetProviderSession(SearchContext context, string providerId)
{
if (!m_SearchSessions.TryGetValue(providerId, out var session))
{
session = new AsyncSearchSession(context);
session.sessionStarted += OnProviderAsyncSessionStarted;
session.sessionEnded += OnProviderAsyncSessionEnded;
session.asyncItemReceived += OnProviderAsyncItemReceived;
m_SearchSessions.Add(providerId, session);
}
return(session);
}
