Reproduce roundtrip failure for commit that looks good otherwise

Author: Byron

gix-object/tests/encode/mod.rs

@@ -24,7 +24,7 @@ macro_rules! round_trip {
                 let mut output = Vec::new();
                 let item = <$borrowed>::from_bytes(&input)?;
                 item.write_to(&mut output)?;
-                assert_eq!(output.as_bstr(), input.as_bstr());
+                assert_eq!(output.as_bstr(), input.as_bstr(), "borrowed");
 
                 let item: $owned = item.into();
                 output.clear();
@@ -35,12 +35,12 @@ macro_rules! round_trip {
                 let item = ObjectRef::from(<$borrowed>::from_bytes(&input)?);
                 output.clear();
                 item.write_to(&mut output)?;
-                assert_eq!(output.as_bstr(), input.as_bstr());
+                assert_eq!(output.as_bstr(), input.as_bstr(), "object-ref");
 
                 let item: Object = item.into();
                 output.clear();
                 item.write_to(&mut output)?;
-                assert_eq!(output.as_bstr(), input.as_bstr());
+                assert_eq!(output.as_bstr(), input.as_bstr(), "owned");
 
                 // Test the loose serialisation -> parse chain for an object kind
                 let item = <$borrowed>::from_bytes(&input)?;
@@ -51,7 +51,7 @@ macro_rules! round_trip {
                 item.write_to(w)?;
                 let parsed = ObjectRef::from_loose(&output)?;
                 let item2 = <$borrowed>::try_from(parsed).or(Err(super::Error::TryFromError))?;
-                assert_eq!(item2, item);
+                assert_eq!(item2, item, "object-ref looose");
             }
             Ok(())
         }
@@ -83,7 +83,8 @@ mod commit {
         "commit/signed-with-encoding.txt",
         "commit/unsigned.txt",
         "commit/whitespace.txt",
-        "commit/with-encoding.txt"
+        "commit/with-encoding.txt",
+        "commit/subtle.txt"
     );
 }
 

gix-object/tests/fixtures/commit/subtle.txt

@@ -0,0 +1,18 @@
+tree de33f909dd559dd60753264ccf9e80183a32c9cc
+parent 2305aad7ac23331e75465eccf425f899fa53a8d8
+author Brezak <[email protected]> 1724180029 +0200
+committer Brezak <[email protected]> 1728251787 +0200
+gpgsig -----BEGIN PGP SIGNATURE-----
+ 
+ iQEzBAABCAAdFiEE6+MMXTYlBWl/3EAJyziR4rEnnXwFAmcDB4sACgkQyziR4rEn
+ nXy8owf9EkHTtmxUKhXiZ8ThGlpqwzcUaaYOBSX6Pmwacz+mqsA7fwLN/AxyN/Wv
+ d7zVhCYX01aZi7lutN4rVa08S9ZoXeZOBHm1u2YtrtETcjiBpVIVt33spkLendvB
+ 1C5UyuVhZ4m8bHG5A3kmJlg0Mf9cwKvNTZiozb+lG79p1b3rc8PJHilHdAMmaUkb
+ 58/7dUXM1B/LLd9p4IyJdLVA0jZmAagm+akiH/A1lji7zSvLJqhr1xOlD6L/K/Ao
+ TM6Kk0i2+eido5vaoutUFuKx+u4j4OtA3lDohvmu36RwyZbfa3OSAg+TWChgYBc/
+ ctOcWsB0EKL3XKz7X8Sw2EIS1Fcd4w==
+ =aZq+
+ -----END PGP SIGNATURE-----
+ 
+
+Check that `#[pointee]` is applied only to generic arguments