fn test_corrupted_vec_len()

in src/primitives.rs [497:532]

• 29 lines of code
• 1 McCabe index (conditional complexity)

    fn test_corrupted_vec_len() {
        let vm = VersionMap::new();
        let mut buffer = vec![0u8; 1024];

        let mut string = String::from("Test string1");
        let vec = unsafe { string.as_mut_vec() };
        vec.serialize(&mut buffer.as_mut_slice(), &vm, 1).unwrap();

        // Test corrupt length field.
        assert_eq!(
            <Vec<u8> as Versionize>::deserialize(
                &mut buffer.as_slice().split_first().unwrap().1,
                &vm,
                1
            )
            .unwrap_err(),
            VersionizeError::VecLength(6052837899185946624)
        );

        // Test incomplete Vec.
        assert_eq!(
            <Vec<u8> as Versionize>::deserialize(&mut buffer.as_slice().split_at(6).0, &vm, 1)
                .unwrap_err(),
            VersionizeError::Deserialize(
                "Io(Custom { kind: UnexpectedEof, error: \"failed to fill whole buffer\" })"
                    .to_owned()
            )
        );

        // Test NULL Vec len.
        buffer[0] = 0;
        assert_eq!(
            <Vec<u8> as Versionize>::deserialize(&mut buffer.as_slice(), &vm, 1).unwrap(),
            Vec::new()
        );
    }