vendor/ciborium/tests/recursion.rs

   1 // SPDX-License-Identifier: Apache-2.0
   2
   3 //! This test validates that we don't get stack overflows.
   4 //!
   5 //! If container types cause recursion, then a long list of prefixes which
   6 //! indicate nested container types could cause the stack to overflow. We
   7 //! test each of these types here to ensure there is no stack overflow.
   8
   9 use ciborium::{
  10     de::{from_reader, Error},
  11     value::Value,
  12 };
  13
  14 #[test]
  15 fn array() {
  16     let bytes = [0x9f; 128 * 1024];
  17     match from_reader::<Value, _>(&bytes[..]).unwrap_err() {
  18         Error::RecursionLimitExceeded => (),
  19         e => panic!("incorrect error: {:?}", e),
  20     }
  21 }
  22
  23 #[test]
  24 fn map() {
  25     let bytes = [0xbf; 128 * 1024];
  26     match from_reader::<Value, _>(&bytes[..]).unwrap_err() {
  27         Error::RecursionLimitExceeded => (),
  28         e => panic!("incorrect error: {:?}", e),
  29     }
  30 }
  31
  32 #[test]
  33 fn bytes() {
  34     let bytes = [0x5f; 128 * 1024];
  35     match from_reader::<Value, _>(&bytes[..]).unwrap_err() {
  36         Error::Io(..) => (),
  37         e => panic!("incorrect error: {:?}", e),
  38     }
  39 }
  40
  41 #[test]
  42 fn text() {
  43     let bytes = [0x7f; 128 * 1024];
  44     match from_reader::<Value, _>(&bytes[..]).unwrap_err() {
  45         Error::Io(..) => (),
  46         e => panic!("incorrect error: {:?}", e),
  47     }
  48 }