def test_copy_funkction_works_properly():
# GIVEN
sample_array = np.array([
[0, 0, 0],
[0, 5, 0],
[1, 0, 0],
])
sample_sudoku = Sudoku(sample_array)
# WHEN
copied_sudoku = sample_sudoku.copy()
# THEN
assert np.all(copied_sudoku.array == sample_sudoku.array)
assert np.all(
copied_sudoku._possibles.matrix == sample_sudoku._possibles.matrix)
def test_copy_function_return_independent_copy():
# GIVEN
sample_array = np.array([
[0, 0, 0],
[0, 5, 0],
[1, 0, 0],
])
sample_sudoku = Sudoku(sample_array)
# WHEN
copied_sudoku = sample_sudoku.copy()
copied_sudoku[0, 0] = 5
copied_sudoku.update()
# THEN
assert np.any(copied_sudoku.array != sample_sudoku.array)
assert np.any(
copied_sudoku._possibles.matrix != sample_sudoku._possibles.matrix)