Add tests from #1

Cargo.toml

@@ -21,7 +21,7 @@ syn = "1.0"
 [dev-dependencies]
 heapless = { version = "0.7.16", default-features = false, features = ["serde"] }
 hex-literal = "0.4.1"
-serde = { version = "1", default-features = false }
+serde = { version = "1" }
 serde-byte-array = "0.1.2"
 serde_bytes = { version = "0.11.12", default-features = false }
-serde_cbor = { version = "0.11.0", default-features = false }
+serde_cbor = { version = "0.11.0" }

tests/basics.rs

@@ -220,3 +220,48 @@ mod some_keys {
         assert_eq!(maybe_example, example);
     }
 }
+
+mod cow {
+    use super::*;
+    use std::borrow::Cow;
+
+    #[derive(PartialEq, Debug, SerializeIndexed, DeserializeIndexed)]
+    #[serde_indexed(offset = 1)]
+    struct WithLifetimes<'a> {
+        data: Cow<'a, [u8]>,
+        #[serde(skip_serializing_if = "Option::is_none")]
+        option: Option<u8>,
+    }
+
+    fn lifetime_example<'a>() -> WithLifetimes<'a> {
+        WithLifetimes {
+            data: Cow::Borrowed(&[1, 2, 3]),
+            option: None,
+        }
+    }
+
+    const SERIALIZED_LIFETIME_EXAMPLE: &'static [u8] = b"\xa1\x01\x83\x01\x02\x03";
+
+    #[test]
+    fn serialize() {
+        let data = lifetime_example();
+        let mut buf = [0u8; 64];
+
+        let size = cbor_serialize(&data, &mut buf).unwrap();
+
+        assert_eq!(&buf[..size], SERIALIZED_LIFETIME_EXAMPLE);
+    }
+
+    #[test]
+    fn deserialize() {
+        let example = lifetime_example();
+
+        let deserialized: WithLifetimes<'_> =
+            cbor_deserialize_with_scratch(SERIALIZED_LIFETIME_EXAMPLE, &mut []).unwrap();
+
+        assert_eq!(deserialized, example);
+        let Cow::Owned(_) = deserialized.data else {
+        panic!("Expected deserialized data Cow::Owned");
+    };
+    }
+}