architecture cleanup

internal/playback/playlist_pipeline_test.go

@@ -116,7 +116,7 @@ type playlistPipelineHarness struct {
 	sessions   chan SessionCommand
 	session    *fakeSessionSnapshotSource
 	statuses   *fakePlaybackStatusSnapshotSource
-	ticker     *fakePlaylistReadinessTicker
+	ticker     *fakePlaylistEventTicker
 	cancel     context.CancelFunc
 	results    chan error
 }
@@ -128,17 +128,17 @@ func startPlaylistPipeline(t *testing.T, playlist Playlist) *playlistPipelineHar
 	if err != nil {
 		t.Fatal(err)
 	}
-	events := make(chan PlaylistReadiness, 8)
+	events := make(chan PlaylistEvent, 8)
 	session := &fakeSessionSnapshotSource{}
 	statuses := &fakePlaybackStatusSnapshotSource{}
-	coordinator, err := NewPlaylistReadinessCoordinator(
+	coordinator, err := NewPlaylistEventCoordinator(
 		controller, session, statuses, events, time.Millisecond,
 	)
 	if err != nil {
 		t.Fatal(err)
 	}
-	ticker := newFakePlaylistReadinessTicker()
-	coordinator.newTicker = func(time.Duration) playlistReadinessTicker { return ticker }
+	ticker := newFakePlaylistEventTicker()
+	coordinator.newTicker = func(time.Duration) playlistEventTicker { return ticker }
 	commands := make(chan PlaylistCommand, 8)
 	ctx, cancel := context.WithCancel(context.Background())
 	results := make(chan error, 2)