| """Test that boolean conditions simplify to a constant value""" |
| # pylint: disable=pointless-statement |
| from unknown import Unknown # pylint: disable=import-error |
| |
| |
| def func(_): |
| """Pointless function""" |
| |
| |
| CONSTANT = 100 |
| OTHER = 200 |
| |
| # Simplifies any boolean expression that is coerced into a True/False value |
| bool(CONSTANT or True) # [condition-evals-to-constant] |
| assert CONSTANT or True # [condition-evals-to-constant] |
| if CONSTANT and False: # [condition-evals-to-constant] |
| pass |
| elif CONSTANT and False: # [condition-evals-to-constant] |
| pass |
| while CONSTANT and False: # [condition-evals-to-constant] |
| break |
| 1 if CONSTANT or True else 2 # [condition-evals-to-constant] |
| z = [x for x in range(10) if x or True] # [condition-evals-to-constant] |
| |
| # Simplifies recursively |
| assert True or CONSTANT or OTHER # [condition-evals-to-constant] |
| assert (CONSTANT or True) or (CONSTANT or True) # [condition-evals-to-constant] |
| |
| # Will try to infer the truthiness of an expression as long as it doesn't contain any variables |
| assert 3 + 4 or CONSTANT # [condition-evals-to-constant] |
| assert Unknown or True # [condition-evals-to-constant] |
| |
| assert True or True # [condition-evals-to-constant] |
| assert False or False # [condition-evals-to-constant] |
| assert True and True # [condition-evals-to-constant] |
| assert False and False # [condition-evals-to-constant] |
| |
| |
| # A bare constant that's not inside of a boolean operation will emit `using-constant-test` instead |
| if True: # pylint: disable=using-constant-test |
| pass |
| |
| # Expressions not in one of the above situations will not emit a message |
| CONSTANT or True |
| bool(CONSTANT or OTHER) |
| bool(func(CONSTANT or True)) |
