diff --git a/crates/effects/src/channel3d/tests.rs b/crates/effects/src/channel3d/tests.rs
index 0c665d62d..4fc84440e 100644
--- a/crates/effects/src/channel3d/tests.rs
+++ b/crates/effects/src/channel3d/tests.rs
@@ -279,11 +279,7 @@ fn cryptomatte_cpu_path_is_bit_exact_inside_and_outside_the_aux_area() {
         };
         for (x, y) in [(0u32, 0u32), (1, 0), (5, 0), (0, 1), (3, 1), (5, 1)] {
             let (c, m) = reduce_by_name(&a, "CryptoObject", &edge_selection(), (y * 6 + x) as usize);
-            assert_eq!(
-                out.get(x as i64, y as i64).map(f32::to_bits),
-                expect(c, m).map(f32::to_bits),
-                "display {display} matteOnly {matte_only} at ({x}, {y})"
-            );
+            assert_eq!(out.get(x as i64, y as i64).map(f32::to_bits), expect(c, m).map(f32::to_bits), "display {display} matteOnly {matte_only} at ({x}, {y})");
         }
         for (x, y) in [(6u32, 0u32), (19, 0), (0, 2), (12, 9)] {
             assert_eq!(
diff --git a/crates/effects/src/color2/tests.rs b/crates/effects/src/color2/tests.rs
index 85467c683..5f57692a0 100644
--- a/crates/effects/src/color2/tests.rs
+++ b/crates/effects/src/color2/tests.rs
@@ -7,8 +7,7 @@ fn run(id: &str, img: &Image, over: &[(&str, Value)]) -> Image {
     for (k, v) in over {
         params.values.insert(k.to_string(), v.clone());
     }
-    let ctx =
-        EffectCtx { params: &params, time: 0.0, layer_size: [img.width as f64, img.height as f64], seed: 1, adjustment: false, env: Default::default() };
+    let ctx = EffectCtx { params: &params, time: 0.0, layer_size: [img.width as f64, img.height as f64], seed: 1, adjustment: false, env: Default::default() };
     (s.render)(&ctx, Buf { img: img.clone(), offset: [0.0, 0.0], scale: 1.0 }).img
 }
 
@@ -331,11 +330,8 @@ fn auto_levels_temporal_smoothing_reads_neighbour_frames() {
 fn shadow_highlight_clip_keeps_the_tonal_range() {
     let img = ramp();
     let lift = [("autoAmounts", Value::Bool(false)), ("shadowAmount", num(80.0))];
-    let unclipped = run(
-        "ec.color.shadowhighlight",
-        &img,
-        &[lift[0].clone(), lift[1].clone(), ("moreOptions/blackClip", num(0.0)), ("moreOptions/whiteClip", num(0.0))],
-    );
+    let unclipped =
+        run("ec.color.shadowhighlight", &img, &[lift[0].clone(), lift[1].clone(), ("moreOptions/blackClip", num(0.0)), ("moreOptions/whiteClip", num(0.0))]);
     let clipped = run("ec.color.shadowhighlight", &img, &[lift[0].clone(), lift[1].clone(), ("moreOptions/blackClip", num(1.0))]);
     let min = |im: &Image| im.data.iter().filter(|p| p[3] > 0.99).map(|p| luminance(p[0], p[1], p[2])).fold(f32::MAX, f32::min);
     assert!(min(&clipped) < min(&unclipped));
diff --git a/crates/effects/src/color_fx/tests.rs b/crates/effects/src/color_fx/tests.rs
index 9ac4cc89f..2f3370204 100644
--- a/crates/effects/src/color_fx/tests.rs
+++ b/crates/effects/src/color_fx/tests.rs
@@ -67,8 +67,7 @@ fn brightness_contrast_modern_keeps_black_and_white_and_legacy_is_linear() {
 fn brightness_contrast_modern_matches_ae_ramp_samples() {
     let u8 = |v: f32| (v * 255.0).round() as i32;
     let go = |b: f64, c: f64, x: u8| {
-        u8(px("ec.color.brightnesscontrast", &[("brightness", num(b)), ("contrast", num(c))], [x as f32 / 255.0, x as f32 / 255.0, x as f32 / 255.0, 1.0])
-            [0])
+        u8(px("ec.color.brightnesscontrast", &[("brightness", num(b)), ("contrast", num(c))], [x as f32 / 255.0, x as f32 / 255.0, x as f32 / 255.0, 1.0])[0])
     };
     // (brightness, contrast, input, AE 8-bit)
     let samples: &[(f64, f64, u8, u8)] = &[
@@ -96,11 +95,8 @@ fn brightness_contrast_modern_matches_ae_ramp_samples() {
 /// (153, 51, 51), (204, 153, 128).
 #[test]
 fn tritone_matches_after_effects() {
-    let colours = [
-        ("highlights", Value::Color([1.0, 1.0, 0.8, 1.0])),
-        ("midtones", Value::Color([0.6, 0.2, 0.2, 1.0])),
-        ("shadows", Value::Color([0.0, 0.0, 0.3, 1.0])),
-    ];
+    let colours =
+        [("highlights", Value::Color([1.0, 1.0, 0.8, 1.0])), ("midtones", Value::Color([0.6, 0.2, 0.2, 1.0])), ("shadows", Value::Color([0.0, 0.0, 0.3, 1.0]))];
     let near = |o: [f32; 4], ae: [f32; 3]| (0..3).all(|i| (o[i] * 255.0 - ae[i]).abs() <= 1.0);
     let mut red = colours.to_vec();
     red.push(("blend", num(25.0)));
@@ -245,11 +241,8 @@ fn exposure_individual_channels_and_bypass() {
     let raw = px("ec.color.exposure", &[("master/exposure", num(1.0)), ("bypassLinearLight", Value::Bool(true))], [0.25, 0.25, 0.25, 1.0]);
     assert!((raw[0] - 0.5).abs() < 1e-5);
     // Negative results are mirrored, not clipped.
-    let neg = px(
-        "ec.color.exposure",
-        &[("master/offset", num(-0.5)), ("bypassLinearLight", Value::Bool(true)), ("master/gamma", num(2.0))],
-        [0.25, 0.25, 0.25, 1.0],
-    );
+    let neg =
+        px("ec.color.exposure", &[("master/offset", num(-0.5)), ("bypassLinearLight", Value::Bool(true)), ("master/gamma", num(2.0))], [0.25, 0.25, 0.25, 1.0]);
     assert!((neg[0] + 0.5).abs() < 1e-4, "{neg:?}");
 }
 
@@ -427,12 +420,8 @@ fn hue_saturation_ranges_adjust_their_hues_only() {
 
 #[test]
 fn fill_mask_all_masks_feather_and_invert() {
-    let sq = |x0: f64, x1: f64| crate::MaskShape {
-        name: String::new(),
-        points: vec![[x0, 0.0], [x1, 0.0], [x1, 10.0], [x0, 10.0]],
-        closed: true,
-        inverted: false,
-    };
+    let sq =
+        |x0: f64, x1: f64| crate::MaskShape { name: String::new(), points: vec![[x0, 0.0], [x1, 0.0], [x1, 10.0], [x0, 10.0]], closed: true, inverted: false };
     let masks = [sq(0.0, 5.0), sq(15.0, 20.0)];
     let env = EffectEnv { masks: &masks, ..Default::default() };
     let grey = Image::filled(20, 10, [0.5, 0.5, 0.5, 1.0]);
diff --git a/crates/effects/src/generate2/tests.rs b/crates/effects/src/generate2/tests.rs
index 6e4783b48..c2acff446 100644
--- a/crates/effects/src/generate2/tests.rs
+++ b/crates/effects/src/generate2/tests.rs
@@ -116,9 +116,8 @@ fn lightning_alpha_obstacle_and_expert_settings() {
             }
         }
     }
-    let opts = |o: f64| {
-        vec![("alphaObstacle", num(o)), ("compositeOnOriginal", Value::Bool(false)), ("glowSettings/glowRadius", num(0.0)), ("forking", num(60.0))]
-    };
+    let opts =
+        |o: f64| vec![("alphaObstacle", num(o)), ("compositeOnOriginal", Value::Bool(false)), ("glowSettings/glowRadius", num(0.0)), ("forking", num(60.0))];
     let free = run("ec.generate.advancedlightning", &opts(0.0), wall.clone());
     let avoid = run("ec.generate.advancedlightning", &opts(10.0), wall.clone());
     assert!(alpha_in(&avoid.img, &wall) < alpha_in(&free.img, &wall), "{} vs {}", alpha_in(&avoid.img, &wall), alpha_in(&free.img, &wall));
diff --git a/crates/effects/src/generate3/tests.rs b/crates/effects/src/generate3/tests.rs
index d6e5b70b7..0edad2f2d 100644
--- a/crates/effects/src/generate3/tests.rs
+++ b/crates/effects/src/generate3/tests.rs
@@ -158,16 +158,10 @@ fn vegas_traces_contours() {
             img.set(x, y, [1.0, 1.0, 1.0, 1.0]);
         }
     }
-    let a = run(
-        "ec.generate.vegas",
-        &[("blendMode", Value::Enum(0)), ("length", num(1.0)), ("midpointOpacity", num(1.0)), ("endOpacity", num(1.0))],
-        img.clone(),
-    );
-    let b = run(
-        "ec.generate.vegas",
-        &[("blendMode", Value::Enum(0)), ("length", num(1.0)), ("midpointOpacity", num(1.0)), ("endOpacity", num(1.0))],
-        img.clone(),
-    );
+    let a =
+        run("ec.generate.vegas", &[("blendMode", Value::Enum(0)), ("length", num(1.0)), ("midpointOpacity", num(1.0)), ("endOpacity", num(1.0))], img.clone());
+    let b =
+        run("ec.generate.vegas", &[("blendMode", Value::Enum(0)), ("length", num(1.0)), ("midpointOpacity", num(1.0)), ("endOpacity", num(1.0))], img.clone());
     assert_eq!(a.img.data, b.img.data);
     assert!(alpha_sum(&a.img, 14, 14, 50, 50) > 50.0, "edges drawn");
     assert!(alpha_sum(&a.img, 26, 26, 38, 38) < 0.5, "interior untouched");
diff --git a/crates/effects/src/ocio/tests.rs b/crates/effects/src/ocio/tests.rs
index 4ef7b6de1..edbc6eff2 100644
--- a/crates/effects/src/ocio/tests.rs
+++ b/crates/effects/src/ocio/tests.rs
@@ -229,13 +229,8 @@ fn profile_converter_converts_and_round_trips() {
         EffectEnv::default(),
     );
     assert_ne!(a.img.data, img.data);
-    let b = run_fx(
-        "ec.utility.colorprofileconverter",
-        &[("inputProfile", Value::Enum(3)), ("outputProfile", Value::Enum(1))],
-        a.img,
-        0.0,
-        EffectEnv::default(),
-    );
+    let b =
+        run_fx("ec.utility.colorprofileconverter", &[("inputProfile", Value::Enum(3)), ("outputProfile", Value::Enum(1))], a.img, 0.0, EffectEnv::default());
     assert!((0..3).all(|k| (b.img.get(0, 0)[k] - img.get(0, 0)[k]).abs() < 1e-4));
     // Same profile both sides: identity. Working space defaults to sRGB.
     let c = run_fx(
diff --git a/crates/effects/src/ocio_config/tests.rs b/crates/effects/src/ocio_config/tests.rs
index f4ac71d29..f534fe0e2 100644
--- a/crates/effects/src/ocio_config/tests.rs
+++ b/crates/effects/src/ocio_config/tests.rs
@@ -160,10 +160,8 @@ fn effects_use_a_custom_config() {
     let o = fx("ec.color.ociocolorspace", &[("sourceName", Value::Str("g2".into())), ("destinationName", Value::Str("default".into()))]);
     assert!((o[0] - 0.25).abs() < 1e-6 && (o[1] - 0.0625).abs() < 1e-6 && (o[2] - 1.0).abs() < 1e-6, "{o:?}");
     // Inverse direction.
-    let o = fx(
-        "ec.color.ociocolorspace",
-        &[("sourceName", Value::Str("g2".into())), ("destinationName", Value::Str("lin".into())), ("direction", Value::Enum(1))],
-    );
+    let o =
+        fx("ec.color.ociocolorspace", &[("sourceName", Value::Str("g2".into())), ("destinationName", Value::Str("lin".into())), ("direction", Value::Enum(1))]);
     assert!((o[0] - 0.5f32.sqrt()).abs() < 1e-6, "{o:?}");
     // Display ▸ view → its colour space.
     let o = fx(
diff --git a/crates/effects/src/sim/tests.rs b/crates/effects/src/sim/tests.rs
index e063b1c72..c6f83ab4e 100644
--- a/crates/effects/src/sim/tests.rs
+++ b/crates/effects/src/sim/tests.rs
@@ -320,9 +320,8 @@ fn particle_world_effect_camera() {
         assert!(finite(&with(std::slice::from_ref(&extra))), "{extra:?}");
     }
     // Moving the camera doesn't restart the simulation.
-    let key = |pr: &crate::Params| {
-        sim_key(&EffectCtx { params: pr, time: 1.0, layer_size: [48.0, 48.0], seed: 1, adjustment: false, env: EffectEnv::default() }, 1)
-    };
+    let key =
+        |pr: &crate::Params| sim_key(&EffectCtx { params: pr, time: 1.0, layer_size: [48.0, 48.0], seed: 1, adjustment: false, env: EffectEnv::default() }, 1);
     let mut moved = params.clone();
     moved.values.insert("extras/effectCamera/rotationZ".into(), num(30.0));
     assert_eq!(key(&params), key(&moved));
diff --git a/crates/effects/src/sim2.rs b/crates/effects/src/sim2.rs
index aec8567d3..497b60f16 100644
--- a/crates/effects/src/sim2.rs
+++ b/crates/effects/src/sim2.rs
@@ -31,8 +31,8 @@ pub use foam::{FoamDisc, FoamEnv, FoamPlan, foam_full_plan};
 use pieces::Cam;
 #[cfg(test)]
 pub(crate) use pieces::draw_pieces;
-pub(crate) use pieces::{rot_axis, sort_far_first};
 pub use pieces::{Piece, PiecePlan, PieceTex, piece_plan};
+pub(crate) use pieces::{rot_axis, sort_far_first};
 pub use pixels::{PixelPlan, pixel_plan};
 pub use registry::specs;
 #[cfg(test)]
diff --git a/crates/effects/src/sim2/tests.rs b/crates/effects/src/sim2/tests.rs
index 61aaf2bbb..2ef35b122 100644
--- a/crates/effects/src/sim2/tests.rs
+++ b/crates/effects/src/sim2/tests.rs
@@ -90,8 +90,7 @@ fn shatter_at_rest_then_breaks() {
     assert_eq!(t1, run("ec.sim.shatter", &v, src.clone(), 0.5));
     assert!(sum_diff(&t1, &src) > 10.0);
     for pat in 0..SHATTER_PATTERNS.len() as u32 {
-        let vv =
-            [("view", Value::Enum(0)), ("shape/pattern", Value::Enum(pat)), ("force1/force1Position", pt(16.0, 16.0)), ("shape/origin", pt(16.0, 16.0))];
+        let vv = [("view", Value::Enum(0)), ("shape/pattern", Value::Enum(pat)), ("force1/force1Position", pt(16.0, 16.0)), ("shape/origin", pt(16.0, 16.0))];
         let r = run("ec.sim.shatter", &vv, src.clone(), 0.0);
         assert!(max_diff(&r, &src) < 0.05, "pattern {pat} tiles the layer: {}", max_diff(&r, &src));
     }
@@ -186,8 +185,7 @@ fn wave_world_seek_and_waves() {
     assert!(a.data.iter().any(|p| (p[0] - 0.5).abs() > 0.05), "waves");
     let flat = run("ec.sim.waveworld", &[("view", Value::Enum(1)), ("producer1/producer1Amplitude", num(0.0))], Image::new(32, 32), 1.0);
     assert!(flat.data.iter().all(|p| (p[0] - 0.5).abs() < 1e-5));
-    let wire =
-        run("ec.sim.waveworld", &[("producer1/producer1Position", pt(16.0, 16.0)), ("simulation/gridResolution", num(10.0))], Image::new(32, 32), 0.3);
+    let wire = run("ec.sim.waveworld", &[("producer1/producer1Position", pt(16.0, 16.0)), ("simulation/gridResolution", num(10.0))], Image::new(32, 32), 0.3);
     assert!(wire.data.iter().any(|p| p[1] > 0.3));
 }
 
@@ -460,8 +458,7 @@ fn foam_flow_map_pop_velocity_wobble_textures_and_reflection() {
     let still = with(&[], 1.0);
     let flowing = with(&[("flowMap/flowMap", Value::Layer(Some(1))), ("flowMap/flowMapSteepness", num(1.0))], 1.0);
     assert!(cx(&flowing) < cx(&still) - 1.0, "{} vs {}", cx(&flowing), cx(&still));
-    let hq =
-        with(&[("flowMap/flowMap", Value::Layer(Some(1))), ("flowMap/flowMapSteepness", num(1.0)), ("flowMap/simulationQuality", Value::Enum(2))], 1.0);
+    let hq = with(&[("flowMap/flowMap", Value::Layer(Some(1))), ("flowMap/flowMapSteepness", num(1.0)), ("flowMap/simulationQuality", Value::Enum(2))], 1.0);
     assert_eq!(
         hq,
         with(&[("flowMap/flowMap", Value::Layer(Some(1))), ("flowMap/flowMapSteepness", num(1.0)), ("flowMap/simulationQuality", Value::Enum(2))], 1.0)
diff --git a/crates/effects/src/sim3/tests.rs b/crates/effects/src/sim3/tests.rs
index 82be71c81..ffce0ae6d 100644
--- a/crates/effects/src/sim3/tests.rs
+++ b/crates/effects/src/sim3/tests.rs
@@ -123,8 +123,7 @@ fn property_mapper_and_layer_map_read_layers() {
         0.7,
     );
     assert_eq!(a.data, b.data);
-    let st =
-        Pg { persistent: Some(mapper(Image::filled(4, 4, [1.0, 0.0, 0.5, 1.0]), [(15, 0, 0.0, 120.0), (0, 0, 0.0, 1.0), (9, 0, 0.0, 2.0)])), ..bare(1) };
+    let st = Pg { persistent: Some(mapper(Image::filled(4, 4, [1.0, 0.0, 0.5, 1.0]), [(15, 0, 0.0, 120.0), (0, 0, 0.0, 1.0), (9, 0, 0.0, 2.0)])), ..bare(1) };
     let mut s = PgState::default();
     s.parts.push(PgParticle::new([1.0, 1.0], [0.0; 2], [1.0; 4], 2.0, 0, SRC_GRID));
     st.step(&mut s);
@@ -189,8 +188,7 @@ fn barrel_radius_square_or_disc() {
 
 #[test]
 fn mapper_drives_position_and_opacity_in_ae_order() {
-    let st =
-        Pg { persistent: Some(mapper(Image::filled(4, 4, [1.0, 0.5, 0.25, 1.0]), [(12, 0, 0.0, 30.0), (20, 0, 0.0, 1.0), (4, 0, 0.0, 1.0)])), ..bare(1) };
+    let st = Pg { persistent: Some(mapper(Image::filled(4, 4, [1.0, 0.5, 0.25, 1.0]), [(12, 0, 0.0, 30.0), (20, 0, 0.0, 1.0), (4, 0, 0.0, 1.0)])), ..bare(1) };
     assert_eq!(MAP_TARGETS[12], "X");
     assert_eq!(MAP_TARGETS[20], "Opacity");
     assert_eq!(MAP_TARGETS[26], "Scale Speed");
diff --git a/crates/engine/src/background/offload/tests.rs b/crates/engine/src/background/offload/tests.rs
index b448d09c4..c08623189 100644
--- a/crates/engine/src/background/offload/tests.rs
+++ b/crates/engine/src/background/offload/tests.rs
@@ -189,11 +189,8 @@ impl Offload for Inline {
 
 #[test]
 fn render_runs_through_the_offload() {
-    let mut s = Session {
-        exporter: Some(Arc::new(crate::rq_tests::MockExporter { log: Default::default() })),
-        offload: Some(Arc::new(Inline)),
-        ..Default::default()
-    };
+    let mut s =
+        Session { exporter: Some(Arc::new(crate::rq_tests::MockExporter { log: Default::default() })), offload: Some(Arc::new(Inline)), ..Default::default() };
     s.execute("file.openDemoProject", serde_json::json!({})).unwrap();
     s.execute("renderQueue.add", serde_json::json!({"output": "/x.gif"})).unwrap();
     let ids = s.start_render(false).unwrap();
diff --git a/crates/engine/src/tests.rs b/crates/engine/src/tests.rs
index 01dd1d5e9..579d3d30d 100644
--- a/crates/engine/src/tests.rs
+++ b/crates/engine/src/tests.rs
@@ -1,5 +1,3 @@
-mod session;
-mod three_d;
 mod anim_presets;
 mod anim_tools;
 mod camera_track;
@@ -15,8 +13,10 @@ mod face;
 mod fidelity;
 mod frame_export;
 mod fuzz_open;
+mod history;
 mod import_project;
 mod key_metadata_order;
+mod key_time;
 mod keylight;
 mod limits;
 mod lottie;
@@ -26,13 +26,18 @@ mod markers;
 mod mask_warp;
 mod menu_cmds;
 mod model3d;
+mod models;
 mod motion_blur_depth;
+mod paint;
+mod panels;
 mod project_items;
 mod proxy;
 mod quick_offset;
 mod replace_source;
 mod rig3d;
+pub(crate) mod roto;
 mod sequence;
+mod session;
 mod settings;
 mod shortcut_cmds;
 pub(crate) mod stubs;
@@ -40,14 +45,9 @@ mod styles;
 mod tail;
 mod text;
 mod text_edit;
+mod three_d;
 mod timeline;
 mod timeline_interchange;
 pub(crate) mod track;
 mod vector_import;
 mod viewer;
-mod history;
-mod models;
-mod paint;
-mod panels;
-pub(crate) mod roto;
-mod key_time;
diff --git a/crates/gpu/src/tests.rs b/crates/gpu/src/tests.rs
index e12219414..fa318ef79 100644
--- a/crates/gpu/src/tests.rs
+++ b/crates/gpu/src/tests.rs
@@ -26,7 +26,6 @@ use effectcraft_time::{FrameRate, Tick};
 
 use crate::Gpu;
 
-mod three_d;
 mod adjust;
 mod adv3d;
 mod deferred;
@@ -54,6 +53,7 @@ mod fx_warp;
 #[cfg(all(test, not(target_arch = "wasm32")))]
 mod init;
 mod particles;
+mod three_d;
 mod wgsl_grammar;
 
 /// One GPU test at a time in this process: the calling test thread holds a process-wide lock
diff --git a/crates/gpu/src/tests/deferred_jobs.rs b/crates/gpu/src/tests/deferred_jobs.rs
index aa885b1de..7e5edbedd 100644
--- a/crates/gpu/src/tests/deferred_jobs.rs
+++ b/crates/gpu/src/tests/deferred_jobs.rs
@@ -8,10 +8,10 @@ use effectcraft_render::three_d::adv;
 use effectcraft_render::{Accelerator, Backend, LayerCache, NoFootage, RenderOpts, Renderer};
 use effectcraft_time::Tick;
 
-use crate::tests::{Pattern, diff, n, tolerance};
 use crate::tests::adv3d::{off_share, run_of, scene, scene_project};
 use crate::tests::deferred::{deferred_gpu, render_passes};
 use crate::tests::particles::{Host, agree, params};
+use crate::tests::{Pattern, diff, n, tolerance};
 
 /// The device's readbacks have landed (the browser's event loop; natively a poll).
 fn settle(g: &crate::Gpu) {
diff --git a/crates/gpu/src/tests/fx_gen2.rs b/crates/gpu/src/tests/fx_gen2.rs
index c82aba8d1..620cced13 100644
--- a/crates/gpu/src/tests/fx_gen2.rs
+++ b/crates/gpu/src/tests/fx_gen2.rs
@@ -7,8 +7,8 @@
 use effectcraft_keyframe::Value;
 use effectcraft_time::Tick;
 
-use crate::tests::{c, n};
 use crate::tests::fx_pixel2::{e, env_case, env_case_allow, env_case_at, off, on, pt};
+use crate::tests::{c, n};
 
 fn layer(id: u64) -> Value {
     Value::Layer(Some(id))
diff --git a/crates/gpu/src/tests/fx_particles.rs b/crates/gpu/src/tests/fx_particles.rs
index 139363b78..e8c3a7ce6 100644
--- a/crates/gpu/src/tests/fx_particles.rs
+++ b/crates/gpu/src/tests/fx_particles.rs
@@ -7,8 +7,8 @@ use effectcraft_project::{BitDepth, LayerSource, build};
 use effectcraft_render::RenderOpts;
 use effectcraft_time::Tick;
 
-use crate::tests::{Scene, check, compare_at, n, opts, set};
 use crate::tests::fx_sim::{case, composited, e, off, on};
+use crate::tests::{Scene, check, compare_at, n, opts, set};
 
 fn v2(x: f64, y: f64) -> Value {
     Value::Vec2([x, y])
diff --git a/crates/host/src/tests.rs b/crates/host/src/tests.rs
index 020d5f3a1..a73f15937 100644
--- a/crates/host/src/tests.rs
+++ b/crates/host/src/tests.rs
@@ -236,7 +236,11 @@ fn render_queue_exports_demo_comp() {
     let path = r["outputPath"].as_str().unwrap().to_string();
     assert!(path.ends_with("_240x134.mp4"), "{path}");
     // A second item: PNG sequence, rendered in the background.
-    s.execute("renderQueue.add", json!({"format": "png", "output": dir.join("seq_[###].png").to_string_lossy(), "resolution": 0.0625, "timeSpan": "custom", "start": 0.0, "end": 0.2})).unwrap();
+    s.execute(
+        "renderQueue.add",
+        json!({"format": "png", "output": dir.join("seq_[###].png").to_string_lossy(), "resolution": 0.0625, "timeSpan": "custom", "start": 0.0, "end": 0.2}),
+    )
+    .unwrap();
     let r = s.execute("renderQueue.render", json!({"wait": false})).unwrap();
     assert_eq!(r["items"].as_array().unwrap().len(), 2);
     let t0 = std::time::Instant::now();
@@ -265,8 +269,7 @@ fn value(s: &effectcraft_engine::Session, l: u64, path: &str) -> effectcraft_eng
     let cid = s.active_comp_id().unwrap();
     let comp = s.project.comp(cid).unwrap();
     let layer = comp.layer(effectcraft_engine::project::LayerId(l)).unwrap();
-    let ctx =
-        effectcraft_engine::render::EvalCtx { project: &s.project, comp_id: cid, comp, time: Default::default(), expr: s.expr.as_deref(), footage: None };
+    let ctx = effectcraft_engine::render::EvalCtx { project: &s.project, comp_id: cid, comp, time: Default::default(), expr: s.expr.as_deref(), footage: None };
     ctx.value(layer, layer.props.prop(path).unwrap())
 }
 
@@ -520,14 +523,8 @@ fn stereo_rig_expressions_follow_the_master_camera() {
     let v3 = |s: &effectcraft_engine::Session, path: &str| {
         let comp = s.project.comp(left).unwrap();
         let layer = &comp.layers[0];
-        let ctx = effectcraft_engine::render::EvalCtx {
-            project: &s.project,
-            comp_id: left,
-            comp,
-            time: Default::default(),
-            expr: s.expr.as_deref(),
-            footage: None,
-        };
+        let ctx =
+            effectcraft_engine::render::EvalCtx { project: &s.project, comp_id: left, comp, time: Default::default(), expr: s.expr.as_deref(), footage: None };
         ctx.value(layer, layer.props.prop(path).unwrap()).as_vec3()
     };
     let close = |a: [f64; 3], b: [f64; 3]| (0..3).all(|i| (a[i] - b[i]).abs() < 1e-6);
diff --git a/crates/pdf/src/tests/groups.rs b/crates/pdf/src/tests/groups.rs
index e897d87c7..14b6a4b09 100644
--- a/crates/pdf/src/tests/groups.rs
+++ b/crates/pdf/src/tests/groups.rs
@@ -1,8 +1,8 @@
 //! M13.12: transparency groups (isolated, knockout, group alpha) and soft masks on a group's
 //! combined result.
 
-use crate::*;
 use crate::tests::{page_pdf, render};
+use crate::*;
 
 fn near(a: [f32; 4], b: [f32; 4]) -> bool {
     (0..4).all(|i| (a[i] - b[i]).abs() < 0.02)
diff --git a/crates/pdf/src/tests/import.rs b/crates/pdf/src/tests/import.rs
index 01db74efa..c7dcbee57 100644
--- a/crates/pdf/src/tests/import.rs
+++ b/crates/pdf/src/tests/import.rs
@@ -1,8 +1,8 @@
 //! M13.12: CCITT images in PDF pages, EPS text and parser robustness over truncated and
 //! corrupt inputs (generated fixtures).
 
-use crate::*;
 use crate::tests::{coverage, page_pdf, render, shape_names};
+use crate::*;
 
 fn eps(body: &[u8]) -> Doc {
     let mut b = b"%!PS-Adobe-3.0 EPSF-3.0\n%%BoundingBox: 0 0 200 100\n".to_vec();
diff --git a/crates/pdf/src/tests/shading.rs b/crates/pdf/src/tests/shading.rs
index 8658efa23..8e96193ab 100644
--- a/crates/pdf/src/tests/shading.rs
+++ b/crates/pdf/src/tests/shading.rs
@@ -1,7 +1,7 @@
 //! M13.12: function-based and mesh shadings (generated fixtures).
 
-use crate::*;
 use crate::tests::{Objs, page_pdf, render};
+use crate::*;
 
 /// Mesh vertex data: 8-bit flags, 16-bit coordinates (Decode `[0 65535 0 65535 …]`, so raw
 /// values are page units) and 8-bit components.
diff --git a/crates/render/src/tests.rs b/crates/render/src/tests.rs
index 5148f73f3..079274499 100644
--- a/crates/render/src/tests.rs
+++ b/crates/render/src/tests.rs
@@ -6,11 +6,8 @@ use effectcraft_time::{FrameRate, Tick};
 
 use crate::render_frame;
 
-mod auto;
-mod remap;
-mod roi;
-mod styles;
 mod audio_fx;
+mod auto;
 mod aux_channels;
 mod collapse;
 mod color;
@@ -22,6 +19,9 @@ mod mask_expansion;
 mod motion_tile;
 mod nested;
 mod paint;
+mod remap;
+mod roi;
+mod styles;
 mod time;
 
 fn setup() -> (Project, ItemId, Comp) {
diff --git a/crates/script/src/tests.rs b/crates/script/src/tests.rs
index 6105cc5e1..8b7973c5d 100644
--- a/crates/script/src/tests.rs
+++ b/crates/script/src/tests.rs
@@ -12,14 +12,14 @@ use crate::{Outcome, run_code};
 
 mod callable;
 mod ease_presets;
+mod evalfile;
 mod include;
 mod panels;
+#[cfg(not(windows))]
+mod services;
 mod tasks;
 mod ui;
 mod ui_more;
-mod evalfile;
-#[cfg(not(windows))]
-mod services;
 mod ui_mouse;
 
 fn session() -> Session {
diff --git a/crates/text/src/layout/tests.rs b/crates/text/src/layout/tests.rs
index 2b0e688ba..9079a1225 100644
--- a/crates/text/src/layout/tests.rs
+++ b/crates/text/src/layout/tests.rs
@@ -313,11 +313,8 @@ fn hanging_punctuation_overhangs_the_box() {
     let p = ParagraphStyle { width: Some(400.0), hanging: true, ..Default::default() };
     let l = layout_rich_uncached(text, &[(0..text.len(), s.clone())], &[p]);
     assert!(l.lines[0].x < -1.0, "opening quote hangs left: {}", l.lines[0].x);
-    let r = layout_rich_uncached(
-        text,
-        &[(0..text.len(), s)],
-        &[ParagraphStyle { width: Some(400.0), hanging: true, align: Align::Right, ..Default::default() }],
-    );
+    let r =
+        layout_rich_uncached(text, &[(0..text.len(), s)], &[ParagraphStyle { width: Some(400.0), hanging: true, align: Align::Right, ..Default::default() }]);
     assert!(r.lines[0].x + r.lines[0].width > 401.0, "closing quote hangs right");
 }
 
@@ -348,13 +345,8 @@ fn rtl_paragraph_carets_run_right_to_left() {
 fn named_instance_sets_the_base_variations() {
     const FAMILY: &str = "EffectCraft Layout Instance Test";
     fonts::add_font_data(crate::sfnt::test_font::variable(FAMILY, &[("Light", 300.0, None), ("Black", 900.0, None)], true));
-    let st = |style: &str, variations: Vec<(String, f32)>| TextStyle {
-        family: FAMILY.into(),
-        style: style.into(),
-        size: 50.0,
-        variations,
-        ..Default::default()
-    };
+    let st =
+        |style: &str, variations: Vec<(String, f32)>| TextStyle { family: FAMILY.into(), style: style.into(), size: 50.0, variations, ..Default::default() };
     let coords = |l: &Layout| l.glyphs.iter().map(|g| crate::variable::coords(g.variations).to_vec()).collect::<Vec<_>>();
     let black = layout_uncached("Hi", &st("Black", vec![]), &ParagraphStyle::default());
     assert!(!black.glyphs.is_empty());
diff --git a/crates/ui-egui/src/frames/tests.rs b/crates/ui-egui/src/frames/tests.rs
index eae81419a..6da1dc269 100644
--- a/crates/ui-egui/src/frames/tests.rs
+++ b/crates/ui-egui/src/frames/tests.rs
@@ -832,8 +832,7 @@ fn the_frames_an_edit_keeps_match_a_fresh_render() {
     }
     let cam = id(s.execute("layer.newCamera", json!({"comp": comp.0})).unwrap(), "layer");
     s.execute("layer.timing", json!({"layers": [cam], "in": 2, "out": 3})).unwrap();
-    let moved =
-        kept(&mut s, comp, json!({"cmd": "prop.set", "params": {"comp": comp.0, "layer": cam, "path": "transform/position", "value": [40, 8, -30]}}));
+    let moved = kept(&mut s, comp, json!({"cmd": "prop.set", "params": {"comp": comp.0, "layer": cam, "path": "transform/position", "value": [40, 8, -30]}}));
     assert!(moved.contains(&0) && moved.contains(&100), "frames far from the camera stay: {moved:?}");
     assert!(!(56..=91).any(|f| moved.contains(&f)), "frames whose shutter samples the camera render again: {moved:?}");
 }
diff --git a/crates/ui-egui/src/panels/viewer_text/tests.rs b/crates/ui-egui/src/panels/viewer_text/tests.rs
index 787d55cc1..be3e84b2c 100644
--- a/crates/ui-egui/src/panels/viewer_text/tests.rs
+++ b/crates/ui-egui/src/panels/viewer_text/tests.rs
@@ -90,10 +90,7 @@ fn ime_delete_surrounding_chars_keeps_the_selection_for_the_commit() {
     let (mut app, lid) = editor("abcdef", 1, 4);
     feed(
         &mut app,
-        vec![
-            egui::Event::Ime(egui::ImeEvent::DeleteSurrounding { before_chars: 1, after_chars: 99 }),
-            egui::Event::Ime(egui::ImeEvent::Commit("XY".into())),
-        ],
+        vec![egui::Event::Ime(egui::ImeEvent::DeleteSurrounding { before_chars: 1, after_chars: 99 }), egui::Event::Ime(egui::ImeEvent::Commit("XY".into()))],
     );
     assert_eq!(doc_text(&app, lid), "XY", "the commit replaces the selection");
     app.session.execute("edit.undo", json!({})).unwrap();
@@ -418,9 +415,8 @@ fn an_application_edit_in_the_same_frame_dominates_the_ime_cause() {
     let (mut app, lid) = editor("ab", 2, 2);
     let mut pass = ImePass::new(egui::ViewportId::ROOT);
     pass.frame(&mut app, vec![], true, false).expect("editing");
-    let mixed = pass
-        .frame(&mut app, vec![egui::Event::Text("x".into()), egui::Event::Ime(egui::ImeEvent::Commit("日".into()))], true, false)
-        .expect("still editing");
+    let mixed =
+        pass.frame(&mut app, vec![egui::Event::Text("x".into()), egui::Event::Ime(egui::ImeEvent::Commit("日".into()))], true, false).expect("still editing");
     assert_eq!(doc_text(&app, lid), "abx日");
     assert_eq!(mixed.change_cause, egui::ImeChangeCause::Other, "the earlier application edit dominates");
 
@@ -428,9 +424,8 @@ fn an_application_edit_in_the_same_frame_dominates_the_ime_cause() {
     let (mut app, lid) = editor("ab", 2, 2);
     let mut pass = ImePass::new(egui::ViewportId::ROOT);
     pass.frame(&mut app, vec![], true, false).expect("editing");
-    let mixed = pass
-        .frame(&mut app, vec![egui::Event::Ime(egui::ImeEvent::Commit("日".into())), egui::Event::Text("x".into())], true, false)
-        .expect("still editing");
+    let mixed =
+        pass.frame(&mut app, vec![egui::Event::Ime(egui::ImeEvent::Commit("日".into())), egui::Event::Text("x".into())], true, false).expect("still editing");
     assert_eq!(doc_text(&app, lid), "ab日x");
     assert_eq!(mixed.change_cause, egui::ImeChangeCause::Other, "the later application edit dominates");
 }
@@ -520,8 +515,7 @@ fn a_failed_batch_with_a_transient_edit_does_not_revive_a_wide_selection_composi
     let (mut app, lid) = editor(&text, 0, 5000);
     let mut pass = ImePass::new(egui::ViewportId::ROOT);
     pass.frame(&mut app, vec![], true, false).expect("editing");
-    pass.frame(&mut app, vec![egui::Event::Ime(egui::ImeEvent::Preedit { text: "に".into(), active_range_chars: None })], true, false)
-        .expect("still editing");
+    pass.frame(&mut app, vec![egui::Event::Ime(egui::ImeEvent::Preedit { text: "に".into(), active_range_chars: None })], true, false).expect("still editing");
     let owner = ime_owner(&app).expect("an editor owner");
     assert!(matches!(
         pass.ctx.data(|d| d.get_temp::<ImeComposition>(ime_composition_id(pass.viewport))),
@@ -556,8 +550,7 @@ fn a_wide_content_change_invalidates_the_active_composition() {
     let (mut app, lid) = editor(&text, 0, 5000);
     let mut pass = ImePass::new(egui::ViewportId::ROOT);
     pass.frame(&mut app, vec![], true, false).expect("editing");
-    pass.frame(&mut app, vec![egui::Event::Ime(egui::ImeEvent::Preedit { text: "に".into(), active_range_chars: None })], true, false)
-        .expect("still editing");
+    pass.frame(&mut app, vec![egui::Event::Ime(egui::ImeEvent::Preedit { text: "に".into(), active_range_chars: None })], true, false).expect("still editing");
 
     let replaced = "b".repeat(5000);
     app.session.execute("layer.setText", json!({"layer": lid.0, "text": replaced})).unwrap();
@@ -578,8 +571,7 @@ fn a_wide_selection_change_invalidates_the_active_composition() {
     let (mut app, lid) = editor(&text, 0, 5000);
     let mut pass = ImePass::new(egui::ViewportId::ROOT);
     pass.frame(&mut app, vec![], true, false).expect("editing");
-    pass.frame(&mut app, vec![egui::Event::Ime(egui::ImeEvent::Preedit { text: "に".into(), active_range_chars: None })], true, false)
-        .expect("still editing");
+    pass.frame(&mut app, vec![egui::Event::Ime(egui::ImeEvent::Preedit { text: "に".into(), active_range_chars: None })], true, false).expect("still editing");
 
     // Still wider than the IME window limit, so this exercises the unavailable-text
     // selection identity rather than merely making the surrounding text available.
diff --git a/crates/ui-egui/src/pointer_wrap/tests.rs b/crates/ui-egui/src/pointer_wrap/tests.rs
index e61c4a931..3843db110 100644
--- a/crates/ui-egui/src/pointer_wrap/tests.rs
+++ b/crates/ui-egui/src/pointer_wrap/tests.rs
@@ -36,13 +36,8 @@ impl Scrub {
 
     fn frame(&mut self, events: Vec<Event>, focused: bool) {
         self.time += 0.02;
-        let mut raw = RawInput {
-            screen_rect: Some(Rect::from_min_size(Pos2::ZERO, vec2(800.0, 600.0))),
-            time: Some(self.time),
-            events,
-            focused,
-            ..Default::default()
-        };
+        let mut raw =
+            RawInput { screen_rect: Some(Rect::from_min_size(Pos2::ZERO, vec2(800.0, 600.0))), time: Some(self.time), events, focused, ..Default::default() };
         raw.events.push(Event::ModifiersChanged(self.modifiers));
         prepare_input(&self.ctx, &mut raw, self.injected);
         let mut out = self.ctx.run_ui(raw, |ui| {
diff --git a/crates/ui-egui/src/workspace_state/tests.rs b/crates/ui-egui/src/workspace_state/tests.rs
index 9fbfeea64..e7b6d9aae 100644
--- a/crates/ui-egui/src/workspace_state/tests.rs
+++ b/crates/ui-egui/src/workspace_state/tests.rs
@@ -28,7 +28,8 @@ fn corrupt_future_or_unknown_workspace_keeps_defaults_and_original_file() {
     }
     let twice =
         r#"{"Split":{"vertical":true,"size":{"Ratio":0.5},"a":{"Tabs":{"panels":["Project"],"active":0}},"b":{"Tabs":{"panels":["Project"],"active":0}}}}"#;
-    let bad_split = r#"{"Split":{"vertical":true,"size":{"Ratio":7.0},"a":{"Tabs":{"panels":["Project"],"active":0}},"b":{"Tabs":{"panels":["Timeline"],"active":0}}}}"#;
+    let bad_split =
+        r#"{"Split":{"vertical":true,"size":{"Ratio":7.0},"a":{"Tabs":{"panels":["Project"],"active":0}},"b":{"Tabs":{"panels":["Timeline"],"active":0}}}}"#;
     for text in [
         "{".into(),
         "{}".into(),