Test defmt version range

Cargo.toml

@@ -24,6 +24,7 @@ x86-sync-pool = []
 __trybuild = []
 # Enable larger MPMC sizes.
 mpmc_large = []
+# This flag has no version guarantee, the `defmt` dependency can be updated in a patch release
 defmt-impl = ["defmt"]
 
 [target.'cfg(any(target_arch = "x86_64", target_arch = "x86"))'.dev-dependencies]
@@ -55,9 +56,5 @@ optional = true
 version = "0.1"
 
 [dependencies.defmt]
-version = "0.2.1"
+version = ">=0.2.0,<0.4"
 optional = true
-
-[dev-dependencies.defmt]
-version = "0.2.1"
-features = ["unstable-test"]

src/defmt.rs

@@ -21,36 +21,3 @@ where
         defmt::write!(fmt, "{=str}", self.as_str());
     }
 }
-
-#[cfg(test)]
-mod tests {
-    use crate::Vec;
-    use defmt::Format;
-
-    #[test]
-    /// Tests encoding Vec with defmt, asserting these types may be serialized
-    /// Note: the exact wire format is NOT checked since its an unstable implementation detail of an external crate.
-    /// based on https://github.com/knurling-rs/defmt/blob/697a8e807bd766a80ada2d57514a9da1232dbc9a/tests/encode.rs#L523
-    fn test_defmt_format_vec() {
-        let val: Vec<_, 8> = Vec::from_slice(b"abc").unwrap();
-
-        let mut f = defmt::InternalFormatter::new();
-        let g = defmt::Formatter { inner: &mut f };
-        val.format(g);
-        f.finalize();
-    }
-
-    /// Tests encoding String with defmt, asserting these types may be serialized
-    /// Note: the exact wire format is NOT checked since its an unstable implementation detail of an external crate.
-    /// based loosely on https://github.com/knurling-rs/defmt/blob/main/tests/encode.rs#L483
-    #[test]
-    fn test_defmt_format_str() {
-        let mut val: crate::String<32> = crate::String::new();
-        val.push_str("foo").unwrap();
-
-        let mut f = defmt::InternalFormatter::new();
-        let g = defmt::Formatter { inner: &mut f };
-        val.format(g);
-        f.finalize();
-    }
-}