diff --git a/tests/cgmath.rs b/tests/cgmath.rs
new file mode 100644
index 0000000..5c3a8ef
--- /dev/null
+++ b/tests/cgmath.rs
@@ -0,0 +1,43 @@
+#![cfg(feature = "cgmath")]
+
+use cgmath as cg;
+use splines::{Interpolation, Key, Spline};
+
+#[test]
+fn cgmath_vector_interpolation() {
+  use splines::Interpolate;
+
+  let start = cg::Vector2::new(0.0, 0.0);
+  let mid = cg::Vector2::new(0.5, 0.5);
+  let end = cg::Vector2::new(1.0, 1.0);
+
+  assert_eq!(Interpolate::lerp(start, end, 0.0), start);
+  assert_eq!(Interpolate::lerp(start, end, 1.0), end);
+  assert_eq!(Interpolate::lerp(start, end, 0.5), mid);
+}
+
+#[test]
+fn stroke_bezier_straight() {
+  use float_cmp::approx_eq;
+
+  let keys = vec![
+    Key::new(
+      0.0,
+      cg::Vector2::new(0., 1.),
+      Interpolation::StrokeBezier(cg::Vector2::new(0., 1.), cg::Vector2::new(0., 1.)),
+    ),
+    Key::new(
+      5.0,
+      cg::Vector2::new(5., 1.),
+      Interpolation::StrokeBezier(cg::Vector2::new(5., 1.), cg::Vector2::new(5., 1.)),
+    ),
+  ];
+  let spline = Spline::from_vec(keys);
+
+  assert!(approx_eq!(f32, spline.clamped_sample(0.0).unwrap().y, 1.));
+  assert!(approx_eq!(f32, spline.clamped_sample(1.0).unwrap().y, 1.));
+  assert!(approx_eq!(f32, spline.clamped_sample(2.0).unwrap().y, 1.));
+  assert!(approx_eq!(f32, spline.clamped_sample(3.0).unwrap().y, 1.));
+  assert!(approx_eq!(f32, spline.clamped_sample(4.0).unwrap().y, 1.));
+  assert!(approx_eq!(f32, spline.clamped_sample(5.0).unwrap().y, 1.));
+}
diff --git a/tests/mod.rs b/tests/integ.rs
similarity index 80%
rename from tests/mod.rs
rename to tests/integ.rs
index d443c0e..7ef2fd6 100644
--- a/tests/mod.rs
+++ b/tests/integ.rs
@@ -1,10 +1,5 @@
 use splines::{spline::SampledWithKey, Interpolation, Key, Spline};
 
-#[cfg(feature = "cgmath")]
-use cgmath as cg;
-#[cfg(feature = "nalgebra")]
-use nalgebra as na;
-
 #[test]
 fn step_interpolation_f32() {
   let start = Key::new(0., 0., Interpolation::Step(0.));
@@ -163,61 +158,6 @@ fn several_interpolations_several_keys() {
   assert_eq!(spline.clamped_sample(11.), Some(4.));
 }
 
-#[cfg(feature = "cgmath")]
-#[test]
-fn stroke_bezier_straight() {
-  use float_cmp::approx_eq;
-
-  let keys = vec![
-    Key::new(
-      0.0,
-      cg::Vector2::new(0., 1.),
-      Interpolation::StrokeBezier(cg::Vector2::new(0., 1.), cg::Vector2::new(0., 1.)),
-    ),
-    Key::new(
-      5.0,
-      cg::Vector2::new(5., 1.),
-      Interpolation::StrokeBezier(cg::Vector2::new(5., 1.), cg::Vector2::new(5., 1.)),
-    ),
-  ];
-  let spline = Spline::from_vec(keys);
-
-  assert!(approx_eq!(f32, spline.clamped_sample(0.0).unwrap().y, 1.));
-  assert!(approx_eq!(f32, spline.clamped_sample(1.0).unwrap().y, 1.));
-  assert!(approx_eq!(f32, spline.clamped_sample(2.0).unwrap().y, 1.));
-  assert!(approx_eq!(f32, spline.clamped_sample(3.0).unwrap().y, 1.));
-  assert!(approx_eq!(f32, spline.clamped_sample(4.0).unwrap().y, 1.));
-  assert!(approx_eq!(f32, spline.clamped_sample(5.0).unwrap().y, 1.));
-}
-
-#[cfg(feature = "cgmath")]
-#[test]
-fn cgmath_vector_interpolation() {
-  use splines::Interpolate;
-
-  let start = cg::Vector2::new(0.0, 0.0);
-  let mid = cg::Vector2::new(0.5, 0.5);
-  let end = cg::Vector2::new(1.0, 1.0);
-
-  assert_eq!(Interpolate::lerp(start, end, 0.0), start);
-  assert_eq!(Interpolate::lerp(start, end, 1.0), end);
-  assert_eq!(Interpolate::lerp(start, end, 0.5), mid);
-}
-
-#[cfg(feature = "nalgebra")]
-#[test]
-fn nalgebra_vector_interpolation() {
-  use splines::Interpolate;
-
-  let start = na::Vector2::new(0.0, 0.0);
-  let mid = na::Vector2::new(0.5, 0.5);
-  let end = na::Vector2::new(1.0, 1.0);
-
-  assert_eq!(Interpolate::lerp(start, end, 0.0), start);
-  assert_eq!(Interpolate::lerp(start, end, 1.0), end);
-  assert_eq!(Interpolate::lerp(start, end, 0.5), mid);
-}
-
 #[test]
 fn add_key_empty() {
   let mut spline: Spline<f32, f32> = Spline::from_vec(vec![]);
diff --git a/tests/nalgebra.rs b/tests/nalgebra.rs
new file mode 100644
index 0000000..6bf9186
--- /dev/null
+++ b/tests/nalgebra.rs
@@ -0,0 +1,16 @@
+#![cfg(feature = "nalgebra")]
+
+use nalgebra as na;
+
+#[test]
+fn nalgebra_vector_interpolation() {
+  use splines::Interpolate;
+
+  let start = na::Vector2::new(0.0, 0.0);
+  let mid = na::Vector2::new(0.5, 0.5);
+  let end = na::Vector2::new(1.0, 1.0);
+
+  assert_eq!(Interpolate::lerp(start, end, 0.0), start);
+  assert_eq!(Interpolate::lerp(start, end, 1.0), end);
+  assert_eq!(Interpolate::lerp(start, end, 0.5), mid);
+}