def test_solver_correctly_solves_puzzle():
expected_result = test_data.get_expected_solution()
input_data = test_data.get_puzzle()
puzzle = Puzzle(input_data)
obtained_result = puzzle.solve()
for row in range(len(expected_result)):
for col in range(len(expected_result[row])):
assert expected_result[row][col] == obtained_result[row][col]
def test_feasible_puzzle_does_not_fail_check():
puzzle = Puzzle(test_data.get_puzzle())
puzzle.check_puzzle()
def test_check_throws_error_if_any_subfield_contains_duplicates():
data = test_data.get_puzzle()
data[8][8] = 7
puzzle = Puzzle(data)
with pytest.raises(AssertionError):
puzzle._check_double_entries_subfield()
def test_check_throws_error_if_any_column_contains_duplicates():
data = test_data.get_puzzle()
data[7][5] = 1
puzzle = Puzzle(data)
with pytest.raises(AssertionError):
puzzle._check_double_entries_vertical()
def test_check_throws_error_if_any_row_contains_duplicates():
data = test_data.get_puzzle()
data[1][1] = 4
puzzle = Puzzle(data)
with pytest.raises(AssertionError):
puzzle._check_double_entries_horizontal()
def test_check_throws_error_if_any_number_exceeds_9():
data = test_data.get_puzzle()
data[4][5] = 10
puzzle = Puzzle(data)
with pytest.raises(AssertionError):
puzzle._check_limit_exeedings()