diff --git a/promql/promqltest/testdata/extended_vectors.test b/promql/promqltest/testdata/extended_vectors.test
index 416945aada..da7cd29f49 100644
--- a/promql/promqltest/testdata/extended_vectors.test
+++ b/promql/promqltest/testdata/extended_vectors.test
@@ -435,10 +435,25 @@ eval instant at 60s rate(metric[5s] smoothed)
 
 eval instant at 60s increase(metric[5s] smoothed)
 
-# Smoothed vector selector with @ modifier with binary op.
+# Smoothed vector selector with @ and offset modifier and binop
 clear
 load 10s
     metric 0+1x20
 
+eval range from 0s to 60s step 15s metric @ 100
+    metric 10 10 10 10 10
+
+eval range from 0s to 60s step 15s metric @ 100 smoothed
+    metric 10 10 10 10 10
+
 eval range from 0s to 60s step 15s metric @ 100 smoothed + 0
     {} 10 10 10 10 10
+
+eval range from 0s to 60s step 15s metric offset -100
+    metric 10 11 13 14 16
+
+eval range from 0s to 60s step 15s metric offset -100 smoothed
+    metric 10 11.5 13 14.5 16
+
+eval range from 0s to 60s step 15s metric offset -100 smoothed + 0
+    {} 10 11.5 13 14.5 16