def test_correct_subscripts(
assert_errors,
parse_ast_tree,
expression,
default_options,
):
"""Testing that non-redundant subscripts are allowed."""
tree = parse_ast_tree(usage_template.format(expression))
visitor = SubscriptVisitor(default_options, tree=tree)
visitor.run()
assert_errors(visitor, [])
def test_redundant_subscript(
assert_errors,
parse_ast_tree,
expression,
default_options,
):
"""Testing that redundant subscripts are forbidden."""
tree = parse_ast_tree(usage_template.format(expression))
visitor = SubscriptVisitor(default_options, tree=tree)
visitor.run()
assert_errors(visitor, [RedundantSubscriptViolation])
def test_nonconsecutive_slices(
assert_errors,
parse_ast_tree,
expression,
default_options,
):
"""Testing that non-consecutive slices are allowed."""
tree = parse_ast_tree(usage_template.format(expression))
visitor = SubscriptVisitor(default_options, tree=tree)
visitor.run()
assert_errors(visitor, [])
def test_forbidden_consecutive_slices(
assert_errors,
parse_ast_tree,
expression,
default_options,
):
"""Testing that consecutive slices are forbidden."""
tree = parse_ast_tree(usage_template.format(expression))
visitor = SubscriptVisitor(default_options, tree=tree)
visitor.run()
assert_errors(visitor, [ConsecutiveSlicesViolation])
def test_regular_index_assignment(
assert_errors,
parse_ast_tree,
expression,
default_options,
):
"""Testing that regular index assignment is allowed."""
tree = parse_ast_tree(usage_template.format(expression))
visitor = SubscriptVisitor(default_options, tree=tree)
visitor.run()
assert_errors(visitor, [])
def test_slice_assignment(
assert_errors,
parse_ast_tree,
expression,
default_options,
):
"""Testing that slice assignments are forbidden."""
tree = parse_ast_tree(usage_template.format(expression))
visitor = SubscriptVisitor(default_options, tree=tree)
visitor.run()
assert_errors(visitor, [AssignToSliceViolation])