diff --git a/tests/selectors.rs b/tests/selectors.rs
index 40b193e..5c43c26 100644
--- a/tests/selectors.rs
+++ b/tests/selectors.rs
@@ -34,6 +34,11 @@ test!(
     selector_attribute_any_lower_case_insensitive,
     "[attr=val i] {\n  color: red;\n}\n"
 );
+test!(
+    selector_attribute_interpolate,
+    "[a#{tt}r=v#{a}l] {\n  color: red;\n}\n",
+    "[attr=val] {\n  color: red;\n}\n"
+);
 test!(
     selector_attribute_any_upper_case_insensitive,
     "[attr=val I] {\n  color: red;\n}\n"