README.md

@@ -50,7 +50,7 @@ grcov codecov/debug/profraw \
       --ignore "tests/*" \
       --ignore "src/main.rs" \
       --ignore "src/bin/musichoard-edit.rs" \
-      --excl-line "^#\[derive" \
+      --excl-line "^#\[derive|unimplemented\!\(\)" \
       --excl-start "GRCOV_EXCL_START|mod tests \{" \
       --excl-stop "GRCOV_EXCL_STOP" \
       --output-path ./codecov/debug/coverage/

src/external/musicbrainz/api/mod.rs

@@ -61,7 +61,7 @@ impl<Http> MusicBrainzClient<Http> {
     }
 }
 
-#[derive(Debug, Default)]
+#[derive(Copy, Clone, Debug, Default, PartialEq, Eq)]
 pub struct PageSettings {
     limit: Option<usize>,
     offset: Option<usize>,
@@ -80,7 +80,7 @@ impl PageSettings {
     }
 
     pub fn with_offset(mut self, offset: usize) -> Self {
-        self.offset = Some(offset);
+        self.set_offset(offset);
         self
     }
 

src/tui/lib/external/musicbrainz/daemon/mod.rs

@@ -467,6 +467,12 @@ mod tests {
         ])
     }
 
+    fn browse_albums_requests() -> VecDeque<MbParams> {
+        let mbref = mb_ref_opt_as_ref(&COLLECTION[1].meta.info.musicbrainz);
+        let arid = mb_ref_opt_unwrap(mbref).mbid().clone();
+        VecDeque::from([MbParams::browse_release_group(arid)])
+    }
+
     fn album_artist_id() -> ArtistId {
         COLLECTION[1].meta.id.clone()
     }
@@ -609,6 +615,9 @@ mod tests {
         let result = daemon.execute_next_job();
         assert_eq!(result, Ok(()));
 
+        let result = daemon.execute_next_job();
+        assert_eq!(result, Err(JobError::JobQueueEmpty));
+
         let result = result_receiver.try_recv().unwrap();
         assert_eq!(
             result,
@@ -657,6 +666,9 @@ mod tests {
         let result = daemon.execute_next_job();
         assert_eq!(result, Ok(()));
 
+        let result = daemon.execute_next_job();
+        assert_eq!(result, Err(JobError::JobQueueEmpty));
+
         let result = result_receiver.try_recv().unwrap();
         let artist_id = album_artist_id();
         assert_eq!(
@@ -703,6 +715,9 @@ mod tests {
         let result = daemon.execute_next_job();
         assert_eq!(result, Ok(()));
 
+        let result = daemon.execute_next_job();
+        assert_eq!(result, Err(JobError::JobQueueEmpty));
+
         let result = result_receiver.try_recv().unwrap();
         assert_eq!(
             result,
@@ -759,6 +774,9 @@ mod tests {
         let result = daemon.execute_next_job();
         assert_eq!(result, Ok(()));
 
+        let result = daemon.execute_next_job();
+        assert_eq!(result, Err(JobError::JobQueueEmpty));
+
         let artist_id = album_artist_id();
 
         let result = result_receiver.try_recv().unwrap();
@@ -828,6 +846,75 @@ mod tests {
         assert_eq!(result, Err(JobError::EventChannelDisconnected));
     }
 
+    fn browse_release_group_expectation(
+        musicbrainz: &mut MockIMusicBrainz,
+        seq: &mut Sequence,
+        mbid: &Mbid,
+        page: Option<PageSettings>,
+        matches: &[Entity<AlbumMeta>],
+        next_page: Option<PageSettings>,
+    ) {
+        let result = Ok(matches.to_owned());
+        musicbrainz
+            .expect_browse_release_group()
+            .with(predicate::eq(mbid.clone()), predicate::eq(page))
+            .times(1)
+            .in_sequence(seq)
+            .return_once(move |_, paging| {
+                *paging = next_page;
+                result
+            });
+    }
+
+    #[test]
+    fn execute_browse_release_groups() {
+        let mut musicbrainz = musicbrainz();
+        let arid = album_arid_expectation();
+        let (_, matches_1) = search_album_expectations_1();
+        let (_, matches_4) = search_album_expectations_4();
+
+        let mut seq = Sequence::new();
+
+        let page = Some(PageSettings::with_max_limit());
+        let next = Some(PageSettings::with_max_limit().with_offset(10));
+        browse_release_group_expectation(&mut musicbrainz, &mut seq, &arid, page, &matches_1, next);
+
+        let page = next;
+        let next = None;
+        browse_release_group_expectation(&mut musicbrainz, &mut seq, &arid, page, &matches_4, next);
+
+        let mut event_sender = event_sender();
+        fetch_complete_expectation(&mut event_sender, 2);
+
+        let (job_sender, job_receiver) = job_channel();
+        let mut daemon = daemon_with(musicbrainz, job_receiver, event_sender);
+
+        let requests = browse_albums_requests();
+        let (result_sender, result_receiver) = mpsc::channel();
+        let result = job_sender.submit_background_job(result_sender, requests);
+        assert_eq!(result, Ok(()));
+
+        let result = daemon.enqueue_all_pending_jobs();
+        assert_eq!(result, Ok(()));
+
+        let result = daemon.execute_next_job();
+        assert_eq!(result, Ok(()));
+
+        let result = daemon.execute_next_job();
+        assert_eq!(result, Ok(()));
+
+        let result = daemon.execute_next_job();
+        assert_eq!(result, Err(JobError::JobQueueEmpty));
+
+        let result = result_receiver.try_recv().unwrap();
+        let fetch = EntityList::Album(matches_1.into_iter().map(|m| m.entity).collect());
+        assert_eq!(result, Ok(MbReturn::Fetch(fetch)));
+
+        let result = result_receiver.try_recv().unwrap();
+        let fetch = EntityList::Album(matches_4.into_iter().map(|m| m.entity).collect());
+        assert_eq!(result, Ok(MbReturn::Fetch(fetch)));
+    }
+
     #[test]
     fn job_queue() {
         let mut queue = JobQueue::new();

src/tui/lib/interface/musicbrainz/daemon/mod.rs

@@ -135,6 +135,13 @@ impl MbParams {
             album,
         }))
     }
+
+    #[allow(dead_code)] // TODO: to be removed by completion of #160
+    pub fn browse_release_group(artist: Mbid) -> Self {
+        MbParams::Browse(BrowseParams::ReleaseGroup(BrowseReleaseGroupParams {
+            artist,
+        }))
+    }
 }
 
 #[cfg(test)]