def test_equality():
s = Sudoku.load_file(os.path.join(_test_dir, 'hard_sol.sud'))
s2 = Sudoku.load_file(os.path.join(_test_dir, 'medium_sol.sud'))
s3 = Sudoku.load_file(os.path.join(_test_dir, 'hard_sol.sud'))
assert s != s2
assert s == s3
assert s != 5
def test_to_oneliner_method():
s = Sudoku.load_file(os.path.join(_test_dir, 'hard.sud'))
s.solve(verbose=True)
correct_solution = Sudoku.load_file(os.path.join(_test_dir, 'hard_sol.sud'))
assert s == correct_solution
oneliner = s.to_oneliner()
oneliner_parsed = Sudoku(oneliner)
assert oneliner_parsed == correct_solution
def test_solve_very_hard_sudoku_with_brute_force():
s = Sudoku.load_file(os.path.join(_test_dir, 'very_hard.sud'))
s.solve(verbose=True, allow_brute_force=True)
correct_solution = Sudoku.load_file(os.path.join(_test_dir, 'very_hard_sol.sud'))
assert s == correct_solution
assert 'BRUTE FORCE' in "".join(s.solution_steps)
def test_solve_very_hard_sudoku_raises_error_if_brute_force_disallowed():
s = Sudoku.load_file(os.path.join(_test_dir, 'very_hard.sud'))
with pytest.raises(SudokuTooDifficultError):
s.solve(verbose=True, allow_brute_force=False)
correct_solution = Sudoku.load_file(os.path.join(_test_dir, 'very_hard_sol.sud'))
assert s != correct_solution
def test_solve_hard_sudoku():
s = Sudoku.load_file(os.path.join(_test_dir, 'hard.sud'))
s.solve(verbose=True)
correct_solution = Sudoku.load_file(os.path.join(_test_dir, 'hard_sol.sud'))
assert s == correct_solution
def test_solve_medium_sudoku():
s = Sudoku.load_file(os.path.join(_test_dir, 'medium.sud'))
s.solve()
correct_solution = Sudoku.load_file(os.path.join(_test_dir, 'medium_sol.sud'))
assert s == correct_solution
def test_solve_simple_sudoku_read_from_flat_file():
s = Sudoku.load_file(os.path.join(_test_dir, 'simple_flat.sud'))
s.solve()
correct_solution = Sudoku.load_file(os.path.join(_test_dir, 'simple_sol.sud'))
assert s == correct_solution
def test_str_repr():
s = Sudoku.load_file(os.path.join(_test_dir, 'hard_sol.sud'))
assert str(s) == repr(s)
def test_raises_error_when_unsolvable_2():
with pytest.raises(SudokuHasNoSolutionError):
s = Sudoku.load_file(os.path.join(_test_dir, 'hard.sud'))
s._matrix[2][7] = 6
s.solve()
