Fix deserialization of VoiceChat{Started,Ended} messages

CHANGELOG.md

@@ -54,6 +54,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Type of response for `CopyMessage` method ([#141](pr141), [#142](pr142))
 - Bad request serialization when the `language` field of `MessageEntityKind::Pre` is `None` ([#145](pr145))
 - Deserialization of `MediaKind::Venue` ([#147][pr147])
+- Deserialization of `VoiceChat{Started,Ended}` messages ([#153][pr153])
 
 [pr119]: https://github.com/teloxide/teloxide-core/pull/119
 [pr133]: https://github.com/teloxide/teloxide-core/pull/133
@@ -62,6 +63,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 [pr143]: https://github.com/teloxide/teloxide-core/pull/143
 [pr145]: https://github.com/teloxide/teloxide-core/pull/145
 [pr147]: https://github.com/teloxide/teloxide-core/pull/147
+[pr153]: https://github.com/teloxide/teloxide-core/pull/153
 [issue473]: https://github.com/teloxide/teloxide/issues/473
 [issue427]: https://github.com/teloxide/teloxide/issues/427
 

src/types/message.rs

@@ -1393,4 +1393,18 @@ mod tests {
             }
         )
     }
+
+    /// Regression test for <https://github.com/teloxide/teloxide/issues/475>
+    #[test]
+    fn issue_475() {
+        let json = r#"{"message_id":198295,"from":{"id":1087968824,"is_bot":true,"first_name":"Group","username":"GroupAnonymousBot"},"sender_chat":{"id":-1001331354980,"title":"C++ Together 2.0","username":"cpptogether","type":"supergroup"},"chat":{"id":-1001331354980,"title":"C++ Together 2.0","username":"cpptogether","type":"supergroup"},"date":1638236631,"voice_chat_started":{}}"#;
+
+        let message: Message = serde_json::from_str(json).unwrap();
+
+        assert!(matches!(message.kind, MessageKind::VoiceChatStarted { .. }));
+
+        // FIXME(waffle): it seems like we are losing `sender_chat` in some
+        // cases inclusing this
+        // assert!(message.sender_chat().is_some());
+    }
 }

src/types/voice_chat_ended.rs

@@ -3,4 +3,4 @@ use serde::{Deserialize, Serialize};
 /// This object represents a service message about a voice chat ended in the
 /// chat.
 #[derive(Clone, Debug, Eq, Hash, PartialEq, Serialize, Deserialize)]
-pub struct VoiceChatEnded;
+pub struct VoiceChatEnded {}

src/types/voice_chat_started.rs

@@ -3,4 +3,4 @@ use serde::{Deserialize, Serialize};
 /// This object represents a service message about a voice chat started in the
 /// chat. Currently holds no information.
 #[derive(Clone, Debug, Eq, Hash, PartialEq, Serialize, Deserialize)]
-pub struct VoiceChatStarted;
+pub struct VoiceChatStarted {}