diff --git a/rslib/src/stats/today.rs b/rslib/src/stats/today.rs
index b1e6d4848..7f508aa31 100644
--- a/rslib/src/stats/today.rs
+++ b/rslib/src/stats/today.rs
@@ -31,3 +31,21 @@ impl Collection {
         Ok(studied_today(today.cards, today.seconds as f32, &self.tr))
     }
 }
+
+#[cfg(test)]
+mod test {
+    use anki_i18n::I18n;
+    use super::studied_today;
+    #[test]
+    fn today() {
+        let tr = I18n::template_only();
+        assert_eq!(
+            &studied_today(3, 13.0, &tr).replace('\n', " "),
+            "Studied 3 cards in 13 seconds today (4.33s/card)"
+        );
+        assert_eq!(
+            &studied_today(300, 5400.0, &tr).replace('\n', " "),
+            "Studied 300 cards in 90 minutes today (18s/card)"
+        );
+    }
+}
\ No newline at end of file