diff --git a/src/swizzle.rs b/src/swizzle.rs
index aa7f580..286daa0 100644
--- a/src/swizzle.rs
+++ b/src/swizzle.rs
@@ -96,24 +96,3 @@ macro_rules! sub_literal {
     };
     ($result:expr, $p:expr, $i:expr) => {};
 }
-
-#[cfg(test)]
-mod tests {
-    use crate::Matrix;
-
-    #[test]
-    fn test_swizzle() {
-        let identity = Matrix::<i32, 4, 4>::identity();
-
-        assert_eq!(
-            swizzle!(identity, a, x, b, (1 + 0), { 2 - 3 }),
-            Matrix::mat([
-                [0, 0, 0, 1],     // a
-                [1, 0, 0, 0],     // x
-                [0, 0, 1, 0],     // b
-                [0, 1, 0, 0],     // row 1
-                [-1, -1, -1, -1]  // fill(-1)
-            ])
-        );
-    }
-}
diff --git a/tests/common/mod.rs b/tests/common/mod.rs
index 936c7da..dadbb35 100644
--- a/tests/common/mod.rs
+++ b/tests/common/mod.rs
@@ -29,6 +29,7 @@ impl<T: Copy + Approx, const M: usize, const N: usize> Approx for Matrix<T, M, N
     }
 }
 
+#[macro_export]
 macro_rules! assert_approx {
     ($left:expr, $right:expr $(,)?) => {
         match (&$left, &$right) {
diff --git a/tests/swizzle.rs b/tests/swizzle.rs
new file mode 100644
index 0000000..98cd05f
--- /dev/null
+++ b/tests/swizzle.rs
@@ -0,0 +1,17 @@
+use vector_victor::{swizzle, Matrix};
+
+#[test]
+fn test_swizzle() {
+    let identity = Matrix::<i32, 4, 4>::identity();
+
+    assert_eq!(
+        swizzle!(identity, a, x, b, (1 + 0), { 2 - 3 }),
+        Matrix::mat([
+            [0, 0, 0, 1],     // a
+            [1, 0, 0, 0],     // x
+            [0, 0, 1, 0],     // b
+            [0, 1, 0, 0],     // row 1
+            [-1, -1, -1, -1]  // fill(-1)
+        ])
+    );
+}