def test_correct_empty_lambda_definition(
assert_errors,
parse_ast_tree,
inner_def,
default_options,
):
"""Testing correct empty lambdas are not reported."""
tree = parse_ast_tree(template.format('lambda', inner_def))
visitor = UselessLambdaDefinitionVisitor(default_options, tree=tree)
visitor.run()
assert_errors(visitor, [])
def test_wrong_lambda(
assert_errors,
parse_ast_tree,
code,
default_options,
):
"""Testing that isinstance is callable with correct types."""
tree = parse_ast_tree(code)
visitor = UselessLambdaDefinitionVisitor(default_options, tree=tree)
visitor.run()
assert_errors(visitor, [ImplicitPrimitiveViolation])
def test_incorrect_lambda_definition(
assert_errors,
parse_ast_tree,
lambda_def,
call_def,
default_options,
):
"""Testing useless lambdas are reported."""
tree = parse_ast_tree(template.format(lambda_def, call_def))
visitor = UselessLambdaDefinitionVisitor(default_options, tree=tree)
visitor.run()
assert_errors(visitor, [UselessLambdaViolation])