# HG changeset patch
# User Raphaël Gomès <rgomes@octobus.net>
# Date 1691496840 -7200
# Node ID d7b2701f17facce6a5dc19daf90b288fe0387b42
# Parent  4c5f6e95df84372e20654b8622910228ac1495a5
rust-config: demonstrate a bug when falling back to non-trivial default values

The default value (when the user hasn't configured anything) is not run
through the value parser, causing a programming error to happen because
of type mismatch. This will be fixed in the next commit.

diff -r 4c5f6e95df84 -r d7b2701f17fa rust/hg-core/src/config/mod.rs
--- a/rust/hg-core/src/config/mod.rs	Fri Aug 18 14:34:29 2023 +0200
+++ b/rust/hg-core/src/config/mod.rs	Tue Aug 08 14:14:00 2023 +0200
@@ -773,4 +773,13 @@
         assert!(config.get_u32(b"section2", b"not-count").is_err());
         assert!(config.get_byte_size(b"section2", b"not-size").is_err());
     }
+
+    #[test]
+    fn test_default_parse() {
+        let config = Config::load_from_explicit_sources(vec![])
+            .expect("expected valid config");
+        let ret = config.get_byte_size(b"cmdserver", b"max-log-size");
+        // FIXME should be `is_ok`
+        assert!(ret.is_err(), "{:?}", ret);
+    }
 }