diff --git a/Justfile b/Justfile
index ea8a1431..60365eeb 100644
--- a/Justfile
+++ b/Justfile
@@ -25,8 +25,8 @@ covfig := "CARGO_INCREMENTAL=0 RUSTFLAGS='-Cinstrument-coverage' RUSTDOCFLAGS='-
 grcov-binary := "--binary-path ./target/coverage/deps/"
 grcov-ignore := "--ignore-not-existing --ignore '../*' --ignore \"/*\" --ignore 'target/*'"
 cov:
-  rm -rf target/coverage/html || true
   {{covfig}} time cargo test -j4 --workspace --exclude jack --profile coverage
+  rm -rf target/coverage/html || true
   {{covfig}} time grcov . -s . {{grcov-binary}} {{grcov-ignore}} -t html -o target/coverage/html
 cov-md:
   {{covfig}} time cargo test -j4 --workspace --exclude jack --profile coverage
diff --git a/tek/src/model.rs b/tek/src/model.rs
index 2e946666..d084fef3 100644
--- a/tek/src/model.rs
+++ b/tek/src/model.rs
@@ -145,3 +145,9 @@ impl Tek {
         Ok(())
     }
 }
+#[cfg(test)] #[test] fn test_model () {
+    let mut tek = Tek::default();
+    let _ = tek.clip();
+    let _ = tek.toggle_loop();
+    let _ = tek.activate();
+}
diff --git a/tek/src/model_scene.rs b/tek/src/model_scene.rs
index 8099cf12..9247e8b3 100644
--- a/tek/src/model_scene.rs
+++ b/tek/src/model_scene.rs
@@ -84,3 +84,15 @@ impl HasScenes for Tek {
     fn scenes (&self) -> &Vec<Scene> { &self.scenes }
     fn scenes_mut (&mut self) -> &mut Vec<Scene> { &mut self.scenes }
 }
+#[cfg(test)] #[test] fn test_model_scene () {
+    let mut app = Tek::default();
+    let _ = app.scene_longest();
+    let _ = app.scene();
+    let _ = app.scene_mut();
+    let _ = app.scene_add(None, None);
+    app.scene_del(0);
+
+    let scene = Scene::default();
+    let _ = scene.pulses();
+    let _ = scene.is_playing(&[]);
+}
diff --git a/tek/src/view_iter.rs b/tek/src/view_iter.rs
index 779de1e9..4adce184 100644
--- a/tek/src/view_iter.rs
+++ b/tek/src/view_iter.rs
@@ -75,3 +75,14 @@ impl Tek {
         })
     }
 }
+
+#[cfg(test)] #[test] fn test_view_iter () {
+    let mut tek = Tek::default();
+    tek.editor = Some(Default::default());
+    let _: Vec<_> = tek.inputs_sizes().collect();
+    let _: Vec<_> = tek.outputs_sizes().collect();
+    let _: Vec<_> = tek.tracks_sizes().collect();
+    let _: Vec<_> = tek.scenes_sizes(true, 10, 10).collect();
+    let _: Vec<_> = tek.scenes_with_colors(true, 10).collect();
+    let _: Vec<_> = tek.scenes_with_track_colors(true, 10, 10).collect();
+}
diff --git a/tek/src/view_meter.rs b/tek/src/view_meter.rs
index a68128c6..298bf46f 100644
--- a/tek/src/view_meter.rs
+++ b/tek/src/view_meter.rs
@@ -1,6 +1,4 @@
 use crate::*;
-impl Tek {
-}
 fn view_meter <'a> (label: &'a str, value: f32) -> impl Content<TuiOut> + 'a {
     col!(
         FieldH(ItemPalette::G[128], label, format!("{:>+9.3}", value)),
@@ -27,3 +25,7 @@ fn view_meters (values: &[f32;2]) -> impl Content<TuiOut> + use<'_> {
         format!("R/{:>+9.3}", values[1]),
     )
 }
+#[cfg(test)] #[test] fn test_view_meter () {
+    let _ = view_meter("", 0.0);
+    let _ = view_meters(&[0.0, 0.0]);
+}