43 lines
1.5 KiB
Rust
43 lines
1.5 KiB
Rust
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//! Room-routing decisions for notifications.
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//!
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//! Pure functions that determine which destination room IDs should receive
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//! a given notification. Currently all notification kinds are broadcast to
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//! all registered rooms; this module is the single location to change that
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//! policy if per-event routing is needed in the future.
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/// Return the rooms that should receive a notification.
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///
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/// `get_room_ids` is called once per notification to obtain the current list
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/// of destination room IDs. Passing a closure (rather than a static slice)
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/// allows callers to use a runtime-mutable set, e.g. WhatsApp ambient senders.
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///
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/// All currently supported event kinds are broadcast to every room returned
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/// by the closure.
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pub fn rooms_for_notification(get_room_ids: &impl Fn() -> Vec<String>) -> Vec<String> {
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get_room_ids()
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn returns_all_rooms_from_closure() {
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let rooms = rooms_for_notification(&|| vec!["room1".to_string(), "room2".to_string()]);
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assert_eq!(rooms, vec!["room1".to_string(), "room2".to_string()]);
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}
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#[test]
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fn returns_empty_when_no_rooms_registered() {
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let rooms = rooms_for_notification(&Vec::new);
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assert!(rooms.is_empty());
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}
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#[test]
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fn returns_single_room() {
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let rooms = rooms_for_notification(&|| vec!["!abc:example.org".to_string()]);
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assert_eq!(rooms.len(), 1);
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assert_eq!(rooms[0], "!abc:example.org");
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}
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}
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