Update tests

README.md

@@ -6,9 +6,10 @@ Grid-less MIDI editor with following goals:
 * Do not care (much) about measures. Primarily aimed at piano real time recordings without explicit tempo/bars.
 * A feature absent in other midi editors I could get my hands on (both commercial and free ones): removing a piece
   of MIDI recording as one can remove a time fragment from PCM recording. For some odd reason DAW authors insist on
-  handling MIDI recordings differently from PCM sound recordings. In some editors this is doable but cumbersome at best.
-* Playing/editing very long (up to about 25K of playable events) files. Those files are usually recordings of real
-  performances (e.g. from a MIDI keyboard).
+  handling time in MIDI editors differently from PCM sound recordings. In some editors this is doable but cumbersome at
+  best.
+* Playing/editing very long (at elast up to about 25K of playable events) files. Those files are usually recordings of
+  real performances (e.g. from a MIDI keyboard).
 * Comfortable workflow with keyboard.
 * Allows making fine adjustments of notes and tempo.
 * Unlimited undo/redo. Never loose session data. Non destructive edits, do not override original files.

src/track_source.rs

@@ -1,11 +1,13 @@
+use std::fmt::{Debug, Formatter, Write};
+use std::sync::Arc;
+
+use sync_cow::SyncCow;
+
 use crate::common::Time;
 use crate::engine;
 use crate::engine::{EngineEvent, EventSource};
 use crate::midi::{controller_set, note_off, note_on};
 use crate::track::{Track, TrackEventType};
-use std::fmt::{Debug, Formatter, Write};
-use std::sync::{Arc, RwLock};
-use sync_cow::SyncCow;
 
 pub struct TrackSource {
     track: Arc<SyncCow<Track>>,
@@ -121,7 +123,7 @@ mod tests {
 
     #[test]
     fn empty_track() {
-        let track = Arc::new(RwLock::new(Track::default()));
+        let track = Arc::new(SyncCow::new(Track::default()));
         let mut source = TrackSource::new(track);
         source.seek(&100_000i64);
         assert_eq!(source.running_at, 100_000);
@@ -142,7 +144,7 @@ mod tests {
                 duration: 12,
             }),
         });
-        let track = Arc::new(RwLock::new(track));
+        let track = Arc::new(SyncCow::new(track));
 
         let mut source = TrackSource::new(track);
         source.seek(&0);