public void AddingCategoriesTest()
{
IStorage storage = new MockStorage();
Preferences preferences = new Preferences(storage);
List <string> categories = new List <string>();
categories.Add("gardening");
categories.Add("electronics");
categories.Add("test category");
foreach (string category in categories)
{
Assert.True(preferences.AddCategory(category));
}
// Ensure these categories have been added to the mock storage
List <UserPreference> mockPreferences = storage.GetUserPreferences();
foreach (string category in categories)
{
bool found = false;
foreach (UserPreference pref in mockPreferences)
{
if (pref._category == category)
{
found = true;
}
}
Assert.True(found);
}
// Ensure these categories have been added to the cache storage
foreach (string category in categories)
{
bool found = false;
UserPreference userPref;
found = preferences.FindUserPreferenceFromCache(category, out userPref);
Assert.True(found);
Assert.NotNull(userPref);
}
}
public void RemovingCategoriesTest()
{
IStorage storage = new MockStorage();
Preferences preferences = new Preferences(storage);
// Add some categories to the mock storage
List <string> categories = new List <string>();
categories.Add("gardening");
categories.Add("electronics");
categories.Add("test category");
categories.Add("policeman");
categories.Add("policewoman");
foreach (string category in categories)
{
preferences.AddCategory(category);
}
// Remove some categories
Assert.True(preferences.RemoveCategory("policeman"));
Assert.True(preferences.RemoveCategory("policewoman"));
// Ensure these filters are removed from the persistence storage
List <UserPreference> mockPreferences = storage.GetUserPreferences();
foreach (UserPreference pref in mockPreferences)
{
Assert.False(pref._category == "policeman");
Assert.False(pref._category == "policewoman");
}
UserPreference userPrefOne, userPrefTwo;
Assert.False(preferences.FindUserPreferenceFromCache("policeman", out userPrefOne));
Assert.False(preferences.FindUserPreferenceFromCache("policewoman", out userPrefTwo));
}