def test_dictionary_builder_addition():
db = DictionaryBuilder.from_mak_generator(number_of_states=2, max_order=2)
assert len(db) == 3
db2 = DictionaryBuilder.from_mak_generator(number_of_states=1, max_order=2)
assert len(db2) == 1
new_dictionary = db + db2
assert len(new_dictionary) == 4
with pytest.raises(ValueError, match=r"Dictionary cannot be empty!"):
db3 = db + DictionaryBuilder(dict_fcns=[])
len(db3)
def test_from_mak_generator():
# test normal operation
db = DictionaryBuilder.from_mak_generator(number_of_states=2, max_order=2)
assert str(db) == " | ".join(["x1*x1", "x1*x2", "x2*x2"])
db = DictionaryBuilder.from_mak_generator(number_of_states=2,
max_order=2,
number_of_inputs=1)
assert str(db) == " | ".join([
"x1*x1",
"x1*x2",
"u1*x1",
"x2*x2",
"u1*x2",
"u1*u1",
])
# test negative arguments
with pytest.raises(ValueError,
match=r"Model has to have at least non-state"):
DictionaryBuilder.from_mak_generator(number_of_states=0, max_order=2)
with pytest.raises(ValueError,
match=r"Model has to have at least non-state"):
DictionaryBuilder.from_mak_generator(number_of_states=-5, max_order=2)
with pytest.raises(ValueError,
match=r"The max_order has to be at least one"):
DictionaryBuilder.from_mak_generator(number_of_states=2, max_order=0)
with pytest.raises(ValueError,
match=r"The max_order has to be at least one"):
DictionaryBuilder.from_mak_generator(number_of_states=2, max_order=-4)
with pytest.raises(ValueError,
match=r"The number of inputs cannot be negative"):
DictionaryBuilder.from_mak_generator(number_of_states=2,
max_order=2,
number_of_inputs=-1)