def METHOD_NAME(self):
    """
    Test that, function do not delete important constraints
    """
    parameters = [3, 3, 3, 3]
    constraints = {((0, 0), (2, 0)), ((0, 1), (1, 1), (2, 0)), ((0, 2), (3, 2))}
    solver = Solver([], [])
    solver.data = parameters
    solver.constraints = constraints
    solver.read_constraints()
    solver.simplify_constraints()
    self.assertEqual(
        solver.constraints,
        constraints,
        "simplify_constraints deleted some important constraints",
    )