How to use vulture - 10 common examples

('foo or False', False, False),
        ('foo and True', False, False),
        ('foo or True', False, True),
        ('False and foo', True, False),
        ('False and 1', True, False),
        ('not False', False, True),
        ('not True', True, False),
        ('not foo', False, False),
        ('foo and (False or [])', True, False),
        ('(foo and bar) or {"a": 1}', False, True),
    ]
    for condition, always_false, always_true in conditions:
        condition = ast.parse(condition, mode='eval').body
        assert not (always_false and always_true)
        assert utils.condition_is_always_false(condition) == always_false
        assert utils.condition_is_always_true(condition) == always_true

def visit_FunctionDef(node):
        for decorator in node.decorator_list:
            decorator_names.append(utils.get_decorator_name(decorator))

def check_condition(code, result):
    condition = ast.parse(code, mode='eval').body
    if result:
        assert utils.condition_is_always_true(condition)
    else:
        assert utils.condition_is_always_false(condition)

def check_condition(code, unsatisfiable=True):
    condition = ast.parse(code, mode='eval')
    assert utils.condition_is_unsatisfiable(condition) == unsatisfiable

def test_errors():
    conditions = [
        'foo',
        '__name__ == "__main__"',
        'chr(-1)',
        'getattr(True, "foo")',
        'hasattr(str, "foo")',
        'isinstance(True, True)',
        'globals()',
        'locals()',
        '().__class__',
    ]
    for condition in conditions:
        condition = ast.parse(condition, mode='eval').body
        assert not utils.condition_is_always_false(condition)
        assert not utils.condition_is_always_true(condition)

('foo and False', True, False),
        ('foo or False', False, False),
        ('foo and True', False, False),
        ('foo or True', False, True),
        ('False and foo', True, False),
        ('False and 1', True, False),
        ('not False', False, True),
        ('not True', True, False),
        ('not foo', False, False),
        ('foo and (False or [])', True, False),
        ('(foo and bar) or {"a": 1}', False, True),
    ]
    for condition, always_false, always_true in conditions:
        condition = ast.parse(condition, mode='eval').body
        assert not (always_false and always_true)
        assert utils.condition_is_always_false(condition) == always_false
        assert utils.condition_is_always_true(condition) == always_true

def check_condition(code, result):
    condition = ast.parse(code, mode='eval').body
    if result:
        assert utils.condition_is_always_true(condition)
    else:
        assert utils.condition_is_always_false(condition)

def test_errors():
    conditions = [
        'foo',
        '__name__ == "__main__"',
        'chr(-1)',
        'getattr(True, "foo")',
        'hasattr(str, "foo")',
        'isinstance(True, True)',
        'globals()',
        'locals()',
        '().__class__',
    ]
    for condition in conditions:
        condition = ast.parse(condition, mode='eval').body
        assert not utils.condition_is_always_false(condition)
        assert not utils.condition_is_always_true(condition)

def check_min_confidence(code, min_confidence, expected):
    v = core.Vulture(verbose=True)
    v.scan(code)
    detected = {
        item.name: item.confidence
        for item in v.get_unused_code(min_confidence=min_confidence)}
    assert detected == expected

def v():
    return core.Vulture(verbose=True)