diff --git a/moli-selector/src/lib.rs b/moli-selector/src/lib.rs
index 67fc203c42..e6af35c4db 100644
--- a/moli-selector/src/lib.rs
+++ b/moli-selector/src/lib.rs
@@ -1733,11 +1733,21 @@ mod tests {
 
         let textarea = host.create_element("textarea");
         assert!(host.set_attribute(textarea, "dir", "auto"));
-        assert!(host.set_input_value(textarea, "\u{05ea}"));
+        let textarea_text = host.create_text_node("\u{05ea}");
+        assert!(host.append_child(textarea, textarea_text));
         assert!(host.append_child(body, textarea));
         assert!(!engine.matches_host(&host, textarea, ":dir(ltr)").unwrap());
         assert!(engine.matches_host(&host, textarea, ":dir(rtl)").unwrap());
 
+        assert!(host.set_text_content(textarea, "A"));
+        assert!(engine.matches_host(&host, textarea, ":dir(ltr)").unwrap());
+        assert!(!engine.matches_host(&host, textarea, ":dir(rtl)").unwrap());
+
+        assert!(host.set_input_value(textarea, "\u{05ea}"));
+        assert!(host.set_text_content(textarea, "A"));
+        assert!(!engine.matches_host(&host, textarea, ":dir(ltr)").unwrap());
+        assert!(engine.matches_host(&host, textarea, ":dir(rtl)").unwrap());
+
         assert!(host.set_input_value(textarea, "A"));
         assert!(engine.matches_host(&host, textarea, ":dir(ltr)").unwrap());
         assert!(!engine.matches_host(&host, textarea, ":dir(rtl)").unwrap());