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test_Sudoku.py
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test_Sudoku.py
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import Sudoku
def test_good_sudoku_from_file():
s = Sudoku.Sudoku("sudoku_games_files/sudoku_easy_01")
assert type(s) is Sudoku.Sudoku
assert s.is_valid() is True
def test_good_sudoku_from_array():
s = Sudoku.Sudoku([
[8, 0, 0, 0, 0, 0, 6, 0, 0],
[9, 3, 0, 8, 0, 0, 0, 7, 1],
[0, 2, 5, 0, 6, 3, 8, 0, 0],
[0, 6, 1, 0, 0, 0, 0, 0, 0],
[0, 9, 8, 4, 5, 6, 3, 1, 0],
[0, 0, 0, 0, 0, 0, 4, 6, 0],
[0, 0, 3, 9, 8, 0, 7, 5, 0],
[7, 8, 0, 0, 0, 1, 0, 3, 6],
[0, 0, 9, 0, 0, 0, 0, 0, 2]
])
assert type(s) is Sudoku.Sudoku
assert s.is_valid() is True
def test_bad_line():
# bad line = line 1
s = Sudoku.Sudoku([
[8, 0, 0, 0, 8, 0, 6, 0, 0],
[9, 3, 0, 8, 0, 0, 0, 7, 1],
[0, 2, 5, 0, 6, 3, 8, 0, 0],
[0, 6, 1, 0, 0, 0, 0, 0, 0],
[0, 9, 8, 4, 5, 6, 3, 1, 0],
[0, 0, 0, 0, 0, 0, 4, 6, 0],
[0, 0, 3, 9, 8, 0, 7, 5, 0],
[7, 8, 0, 0, 0, 1, 0, 3, 6],
[0, 0, 9, 0, 0, 0, 0, 0, 2]
])
assert s.is_valid() is False
def test_bad_col():
# bad col = col 1
s = Sudoku.Sudoku([
[8, 0, 0, 0, 0, 0, 6, 0, 0],
[9, 3, 0, 8, 0, 0, 0, 7, 1],
[0, 2, 5, 0, 6, 3, 8, 0, 0],
[0, 6, 1, 0, 0, 0, 0, 0, 0],
[0, 9, 8, 4, 5, 6, 3, 1, 0],
[8, 0, 0, 0, 0, 0, 4, 6, 0],
[0, 0, 3, 9, 8, 0, 7, 5, 0],
[7, 8, 0, 0, 0, 1, 0, 3, 6],
[0, 0, 9, 0, 0, 0, 0, 0, 2]
])
assert s.is_valid() is False
def test_bad_square():
# bad square = 1, 1
s = Sudoku.Sudoku([
[3, 0, 0, 0, 8, 0, 6, 0, 0],
[9, 3, 0, 8, 0, 0, 0, 7, 1],
[0, 2, 5, 0, 6, 3, 8, 0, 0],
[0, 6, 1, 0, 0, 0, 0, 0, 0],
[0, 9, 8, 4, 5, 6, 3, 1, 0],
[0, 0, 0, 0, 0, 0, 4, 6, 0],
[0, 0, 3, 9, 8, 0, 7, 5, 0],
[7, 8, 0, 0, 0, 1, 0, 3, 6],
[0, 0, 9, 0, 0, 0, 0, 0, 2]
])
assert s.is_valid() is False
def test_get_forbidden_values_for():
s = Sudoku.Sudoku([
[8, 0, 0, 0, 0, 0, 6, 0, 0],
[9, 3, 0, 8, 0, 0, 0, 7, 1],
[0, 2, 5, 0, 6, 3, 8, 0, 0],
[0, 6, 1, 0, 0, 0, 0, 0, 0],
[0, 9, 8, 4, 5, 6, 3, 1, 0],
[0, 0, 0, 0, 0, 0, 4, 6, 0],
[0, 0, 3, 9, 8, 0, 7, 5, 0],
[7, 8, 0, 0, 0, 1, 0, 3, 6],
[0, 0, 9, 0, 0, 0, 0, 0, 2]
])
assert(s.get_forbidden_values_for(0, 0) is None)
assert (s.get_forbidden_values_for(0, 1) == [3, 2, 6, 9, 8, 5])
def test_get_least_constraints():
s = Sudoku.Sudoku([
[8, 0, 0, 0, 0, 0, 6, 0, 0],
[9, 3, 0, 8, 0, 0, 0, 7, 1],
[0, 2, 5, 0, 6, 3, 8, 0, 0],
[0, 6, 1, 0, 0, 0, 0, 0, 0],
[0, 9, 8, 4, 5, 6, 3, 1, 0],
[0, 0, 0, 0, 0, 0, 4, 6, 0],
[0, 0, 3, 9, 8, 0, 7, 5, 0],
[7, 8, 0, 0, 0, 1, 0, 3, 6],
[0, 0, 9, 0, 0, 0, 0, 0, 2]
])
assert(s.get_mrv_cell() == {'score': 4, 'x': 4, 'y': 0})
def test_get_possibilities_for():
s = Sudoku.Sudoku([
[8, 0, 0, 0, 0, 0, 6, 0, 0],
[9, 3, 0, 8, 0, 0, 0, 7, 1],
[0, 2, 5, 0, 6, 3, 8, 0, 0],
[0, 6, 1, 0, 0, 0, 0, 0, 0],
[0, 9, 8, 4, 5, 6, 3, 1, 0],
[0, 0, 0, 0, 0, 0, 4, 6, 0],
[0, 0, 3, 9, 8, 0, 7, 5, 0],
[7, 8, 0, 0, 0, 1, 0, 3, 6],
[0, 0, 9, 0, 0, 0, 0, 0, 2]
])
assert (s.get_possibilities_for(0, 1) == [1, 4, 7])
def test_set():
s = Sudoku.Sudoku([
[8, 0, 0, 0, 0, 0, 6, 0, 0],
[9, 3, 0, 8, 0, 0, 0, 7, 1],
[0, 2, 5, 0, 6, 3, 8, 0, 0],
[0, 6, 1, 0, 0, 0, 0, 0, 0],
[0, 9, 8, 4, 5, 6, 3, 1, 0],
[0, 0, 0, 0, 0, 0, 4, 6, 0],
[0, 0, 3, 9, 8, 0, 7, 5, 0],
[7, 8, 0, 0, 0, 1, 0, 3, 6],
[0, 0, 9, 0, 0, 0, 0, 0, 2]
])
s.set(0, 1, 1)
assert (s.get_sudoku() == [
[8, 1, 0, 0, 0, 0, 6, 0, 0],
[9, 3, 0, 8, 0, 0, 0, 7, 1],
[0, 2, 5, 0, 6, 3, 8, 0, 0],
[0, 6, 1, 0, 0, 0, 0, 0, 0],
[0, 9, 8, 4, 5, 6, 3, 1, 0],
[0, 0, 0, 0, 0, 0, 4, 6, 0],
[0, 0, 3, 9, 8, 0, 7, 5, 0],
[7, 8, 0, 0, 0, 1, 0, 3, 6],
[0, 0, 9, 0, 0, 0, 0, 0, 2]
])
def test_break_sudoku():
s = Sudoku.Sudoku([
[8, 0, 0, 0, 0, 0, 6, 0, 0],
[9, 3, 0, 8, 0, 0, 0, 7, 1],
[0, 2, 5, 0, 6, 3, 8, 0, 0],
[0, 6, 1, 0, 0, 0, 0, 0, 0],
[0, 9, 8, 4, 5, 6, 3, 1, 0],
[0, 0, 0, 0, 0, 0, 4, 6, 0],
[0, 0, 3, 9, 8, 0, 7, 5, 0],
[7, 8, 0, 0, 0, 1, 0, 3, 6],
[0, 0, 9, 0, 0, 0, 0, 0, 2]
])
assert(s.is_valid())
s.set(0, 1, 8)
assert (s.is_valid() is False)
def test_hash():
s = Sudoku.Sudoku([
[8, 0, 0, 0, 0, 0, 6, 0, 0],
[9, 3, 0, 8, 0, 0, 0, 7, 1],
[0, 2, 5, 0, 6, 3, 8, 0, 0],
[0, 6, 1, 0, 0, 0, 0, 0, 0],
[0, 9, 8, 4, 5, 6, 3, 1, 0],
[0, 0, 0, 0, 0, 0, 4, 6, 0],
[0, 0, 3, 9, 8, 0, 7, 5, 0],
[7, 8, 0, 0, 0, 1, 0, 3, 6],
[0, 0, 9, 0, 0, 0, 0, 0, 2]
])
assert(len(s.hash()) == 81)
def test_is_finished():
s = Sudoku.Sudoku([
[4, 1, 5, 6, 3, 8, 9, 7, 2],
[3, 6, 2, 4, 7, 9, 1, 8, 5],
[7, 8, 9, 2, 1, 5, 3, 6, 4],
[9, 2, 6, 3, 4, 1, 7, 5, 8],
[1, 3, 8, 7, 5, 6, 4, 2, 9],
[5, 7, 4, 9, 8, 2, 6, 3, 1],
[2, 5, 7, 1, 6, 4, 8, 9, 3],
[8, 4, 3, 5, 9, 7, 2, 1, 6],
[6, 9, 1, 8, 2, 3, 5, 4, 7]
])
assert (s.is_resolved() is True)