public void UpdateOnePreferenceTest()
{
SqliteStorage storage = _storage;
Assert.True(_storage.CreatePreferenceTable());
List <UserPreference> preferences = new List <UserPreference>();
// When is the primary key set, at inserion or object creation?
UserPreference u1 = new UserPreference("movies", 0.0, 0.0);
UserPreference u2 = new UserPreference("games", 0.0, 100.0);
preferences.Add(u1);
preferences.Add(u2);
bool result = storage.InsertUserPreferences(preferences);
Assert.True(result);
u1._category = "gardening";
u1._minPrice = 95.0;
u1._maxPrice = 165.75;
result = storage.UpdateUserPreference(u1);
Assert.True(result);
UserPreference updatedPref = storage.GetUserPreference("gardening");
Assert.NotNull(updatedPref);
Assert.Equal(95.0, updatedPref._minPrice);
Assert.Equal(165.75, updatedPref._maxPrice);
}
public void UpdateNullPreferencesTest()
{
SqliteStorage storage = _storage;
Assert.True(_storage.CreatePreferenceTable());
Assert.Throws <ArgumentNullException>(() =>
{
_storage.UpdateUserPreference(null);
});
Assert.Throws <ArgumentNullException>(() =>
{
_storage.UpdateUserPreferences(null);
});
}