diff --git a/crates/fj-kernel/src/algorithms/sweep/edge.rs b/crates/fj-kernel/src/algorithms/sweep/edge.rs
index 6e8e7b87a..d0f08d3f9 100644
--- a/crates/fj-kernel/src/algorithms/sweep/edge.rs
+++ b/crates/fj-kernel/src/algorithms/sweep/edge.rs
@@ -142,144 +142,3 @@ impl Sweep for (Handle<HalfEdge>, &Handle<SurfaceVertex>, &Surface, Color) {
         (face, edge_top)
     }
 }
-
-#[cfg(test)]
-mod tests {
-    use std::ops::Deref;
-
-    use fj_interop::{ext::ArrayExt, mesh::Color};
-    use fj_math::Point;
-    use pretty_assertions::assert_eq;
-
-    use crate::{
-        algorithms::sweep::Sweep,
-        builder::HalfEdgeBuilder,
-        insert::Insert,
-        partial::{
-            Partial, PartialCycle, PartialFace, PartialHalfEdge, PartialObject,
-        },
-        services::Services,
-    };
-
-    #[test]
-    fn sweep() {
-        let mut services = Services::new();
-
-        let surface = services.objects.surfaces.xy_plane();
-
-        let half_edge = {
-            let mut half_edge = PartialHalfEdge::default();
-            half_edge.update_as_line_segment_from_points([[0., 0.], [1., 0.]]);
-            half_edge.infer_vertex_positions_if_necessary(&surface.geometry());
-
-            half_edge
-                .build(&mut services.objects)
-                .insert(&mut services.objects)
-        };
-
-        let (face, _) = (
-            half_edge.clone(),
-            half_edge.surface_vertices()[1],
-            surface.deref(),
-            Color::default(),
-        )
-            .sweep([0., 0., 1.], &mut services.objects);
-
-        let expected_face = {
-            let surface = services.objects.surfaces.xz_plane();
-
-            let bottom = {
-                let mut half_edge = PartialHalfEdge::default();
-                half_edge
-                    .update_as_line_segment_from_points([[0., 0.], [1., 0.]]);
-
-                half_edge
-            };
-            let side_up = {
-                let mut side_up = PartialHalfEdge::default();
-
-                {
-                    let [back, front] = side_up.surface_vertices.each_mut_ext();
-
-                    *back = bottom.surface_vertices[1].clone();
-
-                    let mut front = front.write();
-                    front.position = Some([1., 1.].into());
-                }
-
-                side_up.infer_global_form();
-                side_up.update_as_line_segment();
-
-                side_up
-            };
-            let top = {
-                let mut top = PartialHalfEdge::default();
-
-                {
-                    let [back, front] = top.boundary.each_mut_ext();
-                    let [back_surface, front_surface] =
-                        top.surface_vertices.each_mut_ext();
-
-                    *back = Some(Point::from([1.]));
-                    *back_surface = side_up.surface_vertices[1].clone();
-
-                    *front = Some(Point::from([0.]));
-                    let mut front_surface = front_surface.write();
-                    front_surface.position = Some([0., 1.].into());
-                }
-
-                top.infer_global_form();
-                top.update_as_line_segment();
-                top.infer_vertex_positions_if_necessary(&surface.geometry());
-
-                Partial::from(
-                    top.build(&mut services.objects)
-                        .insert(&mut services.objects),
-                )
-                .read()
-                .clone()
-            };
-            let side_down = {
-                let mut side_down = PartialHalfEdge::default();
-
-                let [back, front] = side_down.boundary.each_mut_ext();
-                let [back_surface, front_surface] =
-                    side_down.surface_vertices.each_mut_ext();
-
-                *back = Some(Point::from([1.]));
-                *front = Some(Point::from([0.]));
-
-                *back_surface = top.surface_vertices[1].clone();
-                *front_surface = bottom.surface_vertices[0].clone();
-
-                side_down.infer_global_form();
-                side_down.update_as_line_segment();
-                side_down
-                    .infer_vertex_positions_if_necessary(&surface.geometry());
-
-                Partial::from(
-                    side_down
-                        .build(&mut services.objects)
-                        .insert(&mut services.objects),
-                )
-                .read()
-                .clone()
-            };
-
-            let mut cycle = PartialCycle::default();
-            cycle.half_edges.extend(
-                [bottom, side_up, top, side_down].map(Partial::from_partial),
-            );
-
-            let face = PartialFace {
-                surface: Partial::from(surface),
-                exterior: Partial::from_partial(cycle),
-                ..Default::default()
-            };
-            face.build(&mut services.objects)
-                .insert(&mut services.objects)
-        };
-
-        assert_eq!(face, expected_face);
-    }
-}
diff --git a/crates/fj-kernel/src/algorithms/sweep/face.rs b/crates/fj-kernel/src/algorithms/sweep/face.rs
index 4dfed4633..40b98a0df 100644
--- a/crates/fj-kernel/src/algorithms/sweep/face.rs
+++ b/crates/fj-kernel/src/algorithms/sweep/face.rs
@@ -135,199 +135,3 @@ impl Sweep for Handle<Face> {
         PartialShell { faces }.build(objects).insert(objects)
     }
 }
-
-#[cfg(test)]
-mod tests {
-    use std::ops::Deref;
-
-    use fj_interop::{ext::SliceExt, mesh::Color};
-
-    use crate::{
-        algorithms::{reverse::Reverse, transform::TransformObject},
-        builder::{CycleBuilder, HalfEdgeBuilder, SketchBuilder},
-        insert::Insert,
-        partial::{
-            Partial, PartialFace, PartialHalfEdge, PartialObject, PartialSketch,
-        },
-        services::Services,
-    };
-
-    use super::Sweep;
-
-    const TRIANGLE: [[f64; 2]; 3] = [[0., 0.], [1., 0.], [0., 1.]];
-
-    const UP: [f64; 3] = [0., 0., 1.];
-    const DOWN: [f64; 3] = [0., 0., -1.];
-
-    #[test]
-    fn sweep_up() {
-        let mut services = Services::new();
-
-        let surface = services.objects.surfaces.xy_plane();
-        let sketch = {
-            let mut sketch = PartialSketch::default();
-
-            let mut face = sketch.add_face();
-            face.write().surface = Partial::from(surface.clone());
-            face.write()
-                .exterior
-                .write()
-                .update_as_polygon_from_points(TRIANGLE);
-
-            sketch
-        };
-        let solid = sketch
-            .build(&mut services.objects)
-            .insert(&mut services.objects)
-            .sweep(UP, &mut services.objects);
-
-        let bottom = {
-            let mut bottom = PartialFace {
-                surface: Partial::from(surface.clone()),
-                ..Default::default()
-            };
-
-            bottom
-                .exterior
-                .write()
-                .update_as_polygon_from_points(TRIANGLE);
-
-            bottom
-                .build(&mut services.objects)
-                .insert(&mut services.objects)
-                .reverse(&mut services.objects)
-        };
-        let top = {
-            let surface = surface.clone().translate(UP, &mut services.objects);
-
-            let mut top = PartialFace {
-                surface: Partial::from(surface),
-                ..Default::default()
-            };
-
-            top.exterior.write().update_as_polygon_from_points(TRIANGLE);
-
-            top.build(&mut services.objects)
-                .insert(&mut services.objects)
-        };
-
-        assert!(solid.find_face(&bottom).is_some());
-        assert!(solid.find_face(&top).is_some());
-
-        let triangle = TRIANGLE.as_slice();
-        let side_faces = triangle.array_windows_ext().map(|&[a, b]| {
-            let half_edge = {
-                let mut half_edge = PartialHalfEdge::default();
-                half_edge.update_as_line_segment_from_points([a, b]);
-                half_edge
-                    .infer_vertex_positions_if_necessary(&surface.geometry());
-
-                half_edge
-                    .build(&mut services.objects)
-                    .insert(&mut services.objects)
-            };
-            let (face, _) = (
-                half_edge.clone(),
-                half_edge.surface_vertices()[1],
-                surface.deref(),
-                Color::default(),
-            )
-                .sweep(UP, &mut services.objects);
-            face
-        });
-
-        assert!(side_faces
-            .into_iter()
-            .all(|face| solid.find_face(&face).is_some()));
-    }
-
-    #[test]
-    fn sweep_down() {
-        let mut services = Services::new();
-
-        let surface = services.objects.surfaces.xy_plane();
-        let sketch = {
-            let mut sketch = PartialSketch::default();
-
-            let mut face = sketch.add_face();
-            face.write().surface = Partial::from(surface.clone());
-            face.write()
-                .exterior
-                .write()
-                .update_as_polygon_from_points(TRIANGLE);
-
-            sketch
-        };
-        let solid = sketch
-            .build(&mut services.objects)
-            .insert(&mut services.objects)
-            .sweep(DOWN, &mut services.objects);
-
-        let bottom = {
-            let surface =
-                surface.clone().translate(DOWN, &mut services.objects);
-
-            let mut bottom = PartialFace {
-                surface: Partial::from(surface),
-                ..Default::default()
-            };
-
-            bottom
-                .exterior
-                .write()
-                .update_as_polygon_from_points(TRIANGLE);
-
-            bottom
-                .build(&mut services.objects)
-                .insert(&mut services.objects)
-                .reverse(&mut services.objects)
-        };
-        let top = {
-            let mut top = PartialFace {
-                surface: Partial::from(surface.clone()),
-                ..Default::default()
-            };
-
-            top.exterior.write().update_as_polygon_from_points(TRIANGLE);
-
-            top.build(&mut services.objects)
-                .insert(&mut services.objects)
-        };
-
-        assert!(solid.find_face(&bottom).is_some());
-        assert!(solid.find_face(&top).is_some());
-
-        let triangle = TRIANGLE.as_slice();
-        let side_faces = triangle.array_windows_ext().map(|&[a, b]| {
-            let half_edge = {
-                let mut half_edge = PartialHalfEdge::default();
-                half_edge.update_as_line_segment_from_points([a, b]);
-                half_edge
-                    .infer_vertex_positions_if_necessary(&surface.geometry());
-
-                half_edge.boundary =
-                    [half_edge.boundary[1], half_edge.boundary[0]];
-                half_edge.surface_vertices = [
-                    half_edge.surface_vertices[1].clone(),
-                    half_edge.surface_vertices[0].clone(),
-                ];
-
-                half_edge
-                    .build(&mut services.objects)
-                    .insert(&mut services.objects)
-            };
-            let (face, _) = (
-                half_edge.clone(),
-                half_edge.surface_vertices()[1],
-                surface.deref(),
-                Color::default(),
-            )
-                .sweep(DOWN, &mut services.objects);
-            face
-        });
-
-        assert!(side_faces
-            .into_iter()
-            .all(|face| solid.find_face(&face).is_some()));
-    }
-}