fixup! add support for the imap quota extension (RFC 2087)

src/types/quota.rs

@@ -35,7 +35,7 @@ impl Display for QuotaResourceLimit<'_> {
 /// From [Resources](https://datatracker.ietf.org/doc/html/rfc2087#section-3)
 ///
 /// Used by [`QuotaLimit`], and [`QuotaResource`]
-#[derive(Debug, Eq, PartialEq)]
+#[derive(Debug, Eq, PartialEq, Clone)]
 #[non_exhaustive]
 pub enum QuotaResourceName<'a> {
     /// Sum of messages' RFC822.SIZE, in units of 1024 octets
@@ -56,6 +56,17 @@ impl Display for QuotaResourceName<'_> {
     }
 }
 
+impl<'a> QuotaResourceName<'a> {
+    /// Get an owned version of the [`QuotaResourceName`].
+    pub fn into_owned(self) -> QuotaResourceName<'static> {
+        match self {
+            QuotaResourceName::Storage => QuotaResourceName::Storage,
+            QuotaResourceName::Message => QuotaResourceName::Message,
+            QuotaResourceName::Atom(n) => QuotaResourceName::Atom(Cow::Owned(n.into_owned())),
+        }
+    }
+}
+
 /// From [QUOTA Response](https://datatracker.ietf.org/doc/html/rfc2087#section-5.1)
 ///
 /// This is a wrapper around a single single [`Quota`].
@@ -219,3 +230,17 @@ impl QuotaRootResponse {
         &self.borrow_inner().quotas[..]
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_quota_resource_name_into_owned() {
+        let name = "TEST";
+        let borrowed = QuotaResourceName::Atom(Cow::Borrowed(name));
+
+        let new_owned = borrowed.into_owned();
+        assert!(matches!(new_owned, QuotaResourceName::Atom(Cow::Owned(_))));
+    }
+}