def test_solve_returns_list():
expected_results = get_all_combinations(["Dog", "Cat", "Mouse"])
r = RankingProblem()
r.set_items(["Dog", "Cat", "Mouse"])
actual_results = r.solve()
assert(actual_results == expected_results)
def test_get_all_combinations_excluding_supplied_correct():
expected_results = [
(
"Blue",
"Red",
),
]
actual_results = get_all_combinations(["Red", "Blue"], False)
assert (actual_results == expected_results)
def test_get_all_combinations_excluding_supplied_incorrect():
unexpected_results = [
(
"Red",
"Blue",
),
]
actual_results = get_all_combinations(["Red", "Blue"], False)
for unexpected_item in unexpected_results:
with pytest.raises(ValueError, match=r".*is not in list"):
actual_results.index(unexpected_item)
def test_get_all_combinations_correct():
expected_results = [
(
"Blue",
"Red",
),
(
"Red",
"Blue",
),
]
actual_results = get_all_combinations(["Red", "Blue"])
assert (actual_results == expected_results)
def test_solve_is_before_fully_specified_incorrect():
unexpected_results = get_all_combinations(["Mouse", "Cat", "Dog"],
include_passed_values=False)
r = RankingProblem()
r.set_items(["Dog", "Cat", "Mouse"])
r.is_before("Cat", "Dog")
r.is_before("Mouse", "Cat")
actual_results = r.solve()
for actual_result in actual_results:
for unexpected_result in unexpected_results:
assert (unexpected_result != actual_result)
def test_get_all_combinations_correct_but_out_of_sequence():
expected_results_out_of_sequence = [
(
"Red",
"Blue",
),
(
"Blue",
"Red",
),
]
actual_results = get_all_combinations(["Red", "Blue"])
assert (actual_results != expected_results_out_of_sequence)
assert (actual_results[0] == expected_results_out_of_sequence[1])
assert (actual_results[1] == expected_results_out_of_sequence[0])
def test_get_all_combinations_empty():
empty_results = [()]
assert (get_all_combinations([]) == empty_results)
def test_can_call_get_all_combinations():
get_all_combinations(["Red", "Blue"])