def test_find_common_elements():
#MatrixModel
model_matrix = MatrixPreferenceDataModel(movies)
source_preferences = model_matrix.preferences_from_user('Marcel Caraciolo')
target_preferences = model_matrix.preferences_from_user('Leopoldo Pires')
assert_array_equal(np.array([[2.5, 3.5, 3.5, 3.0]]), find_common_elements(source_preferences, target_preferences)[0])
assert_array_equal(np.array([[2.5, 3.0, 3.5, 4.0]]), find_common_elements(source_preferences, target_preferences)[1])
#MatrixModel
source_preferences = model_matrix.preferences_from_user('Marcel Caraciolo')
target_preferences = model_matrix.preferences_from_user('Luciana Nunes')
assert_array_equal(np.array([[3., 2.5, 3.5, 3.5, 3., 2.5]]), find_common_elements(source_preferences, target_preferences)[0])
assert_array_equal(np.array([[1.5, 3., 3.5, 5., 3., 3.5]]), find_common_elements(source_preferences, target_preferences)[1])
#MatrixModel
source_preferences = model_matrix.preferences_from_user('Marcel Caraciolo')
target_preferences = model_matrix.preferences_from_user('Maria Gabriela')
assert_array_equal(np.array([[]]), find_common_elements(source_preferences, target_preferences)[0])
assert_array_equal(np.array([[]]), find_common_elements(source_preferences, target_preferences)[1])
#MatrixModel
source_preferences = model_matrix.preferences_for_item('Snakes on a Plane')
target_preferences = model_matrix.preferences_for_item('Superman Returns')
assert_array_equal(np.array([[3., 3.5, 3.5, 3.5, 4.5, 4., 4.]]), find_common_elements(source_preferences, target_preferences)[0])
assert_array_equal(np.array([[3.5, 4., 5., 3.5, 4., 5., 3.]]), find_common_elements(source_preferences, target_preferences)[1])
model_matrix.set_preference('Maria Gabriela', 'Back to the Future', 3.5)
source_preferences = model_matrix.preferences_for_item('Back to the Future')
target_preferences = model_matrix.preferences_for_item('Superman Returns')
assert_array_equal(np.array([[]]), find_common_elements(source_preferences, target_preferences)[0])
assert_array_equal(np.array([[]]), find_common_elements(source_preferences, target_preferences)[1])
def test_set_preference_value_MatrixPreferenceDataModel():
#Add
model = MatrixPreferenceDataModel(movies)
model.set_preference('Maria Gabriela', 'Superman Returns', 2.0)
assert_equals(2.0, model.preference_value('Maria Gabriela', 'Superman Returns'))
#Edit
model = MatrixPreferenceDataModel(movies)
model.set_preference('Marcel Caraciolo', 'Superman Returns', 1.0)
assert_equals(1.0, model.preference_value('Marcel Caraciolo', 'Superman Returns'))
#invalid
assert_raises(UserNotFoundError, model.set_preference, 'Carlos', 'Superman Returns', 2.0)
def test_find_common_elements():
#MatrixModel
model_matrix = MatrixPreferenceDataModel(movies)
source_preferences = model_matrix.preferences_from_user('Marcel Caraciolo')
target_preferences = model_matrix.preferences_from_user('Leopoldo Pires')
assert_array_equal(
np.array([[2.5, 3.5, 3.5, 3.0]]),
find_common_elements(source_preferences, target_preferences)[0])
assert_array_equal(
np.array([[2.5, 3.0, 3.5, 4.0]]),
find_common_elements(source_preferences, target_preferences)[1])
#MatrixModel
source_preferences = model_matrix.preferences_from_user('Marcel Caraciolo')
target_preferences = model_matrix.preferences_from_user('Luciana Nunes')
assert_array_equal(
np.array([[3., 2.5, 3.5, 3.5, 3., 2.5]]),
find_common_elements(source_preferences, target_preferences)[0])
assert_array_equal(
np.array([[1.5, 3., 3.5, 5., 3., 3.5]]),
find_common_elements(source_preferences, target_preferences)[1])
#MatrixModel
source_preferences = model_matrix.preferences_from_user('Marcel Caraciolo')
target_preferences = model_matrix.preferences_from_user('Maria Gabriela')
assert_array_equal(
np.array([[]]),
find_common_elements(source_preferences, target_preferences)[0])
assert_array_equal(
np.array([[]]),
find_common_elements(source_preferences, target_preferences)[1])
#MatrixModel
source_preferences = model_matrix.preferences_for_item('Snakes on a Plane')
target_preferences = model_matrix.preferences_for_item('Superman Returns')
assert_array_equal(
np.array([[3., 3.5, 3.5, 3.5, 4.5, 4., 4.]]),
find_common_elements(source_preferences, target_preferences)[0])
assert_array_equal(
np.array([[3.5, 4., 5., 3.5, 4., 5., 3.]]),
find_common_elements(source_preferences, target_preferences)[1])
model_matrix.set_preference('Maria Gabriela', 'Back to the Future', 3.5)
source_preferences = model_matrix.preferences_for_item(
'Back to the Future')
target_preferences = model_matrix.preferences_for_item('Superman Returns')
assert_array_equal(
np.array([[]]),
find_common_elements(source_preferences, target_preferences)[0])
assert_array_equal(
np.array([[]]),
find_common_elements(source_preferences, target_preferences)[1])