public void testStrategy()
{
List<IPreference> prefsOfUser123 = new List<IPreference>();
prefsOfUser123.Add(new GenericPreference(123L, 1L, 1.0f));
List<IPreference> prefsOfUser456 = new List<IPreference>();
prefsOfUser456.Add(new GenericPreference(456L, 1L, 1.0f));
prefsOfUser456.Add(new GenericPreference(456L, 2L, 1.0f));
List<IPreference> prefsOfUser789 = new List<IPreference>();
prefsOfUser789.Add(new GenericPreference(789L, 1L, 0.5f));
prefsOfUser789.Add(new GenericPreference(789L, 3L, 1.0f));
IPreferenceArray prefArrayOfUser123 = new GenericUserPreferenceArray(prefsOfUser123);
FastByIDMap<IPreferenceArray> userData = new FastByIDMap<IPreferenceArray>();
userData.Put(123L, prefArrayOfUser123);
userData.Put(456L, new GenericUserPreferenceArray(prefsOfUser456));
userData.Put(789L, new GenericUserPreferenceArray(prefsOfUser789));
IDataModel dataModel = new GenericDataModel(userData);
ICandidateItemsStrategy strategy =
new SamplingCandidateItemsStrategy(1, 1, 1, dataModel.GetNumUsers(), dataModel.GetNumItems());
FastIDSet candidateItems = strategy.GetCandidateItems(123L, prefArrayOfUser123, dataModel);
Assert.True(candidateItems.Count() <= 1);
Assert.False(candidateItems.Contains(1L));
}
public void testStrategy()
{
List <IPreference> prefsOfUser123 = new List <IPreference>();
prefsOfUser123.Add(new GenericPreference(123L, 1L, 1.0f));
List <IPreference> prefsOfUser456 = new List <IPreference>();
prefsOfUser456.Add(new GenericPreference(456L, 1L, 1.0f));
prefsOfUser456.Add(new GenericPreference(456L, 2L, 1.0f));
List <IPreference> prefsOfUser789 = new List <IPreference>();
prefsOfUser789.Add(new GenericPreference(789L, 1L, 0.5f));
prefsOfUser789.Add(new GenericPreference(789L, 3L, 1.0f));
IPreferenceArray prefArrayOfUser123 = new GenericUserPreferenceArray(prefsOfUser123);
FastByIDMap <IPreferenceArray> userData = new FastByIDMap <IPreferenceArray>();
userData.Put(123L, prefArrayOfUser123);
userData.Put(456L, new GenericUserPreferenceArray(prefsOfUser456));
userData.Put(789L, new GenericUserPreferenceArray(prefsOfUser789));
IDataModel dataModel = new GenericDataModel(userData);
ICandidateItemsStrategy strategy =
new SamplingCandidateItemsStrategy(1, 1, 1, dataModel.GetNumUsers(), dataModel.GetNumItems());
FastIDSet candidateItems = strategy.GetCandidateItems(123L, prefArrayOfUser123, dataModel);
Assert.True(candidateItems.Count() <= 1);
Assert.False(candidateItems.Contains(1L));
}