diff --git a/src/combinators.rs b/src/combinators.rs
index 5f2fe80..e0f7fc5 100644
--- a/src/combinators.rs
+++ b/src/combinators.rs
@@ -220,5 +220,24 @@ mod tests {
             p.parse("garb garb      garb     garb").unwrap(),
             (vec![20, 20, 20, 20], "")
         );
+
+        assert!(p.parse("garb garb      garb     garb ").is_err());
+
+        let p =
+            repeated(literal("garb").to(20)).separated_by(repeated(literal(" ")).at_least(1), true);
+
+        assert_eq!(
+            p.parse("garb garb      garb     garb").unwrap(),
+            (vec![20, 20, 20, 20], "")
+        );
+
+        assert_eq!(
+            p.parse("garb garb      garb     garb     ").unwrap(),
+            (vec![20, 20, 20, 20], "")
+        );
+        assert_eq!(
+            p.parse("garb garb      garb     garb     q").unwrap(),
+            (vec![20, 20, 20, 20], "q")
+        );
     }
 }