From 4e08fa1b7e02d5c79cc0118bb780ee70d80ce725 Mon Sep 17 00:00:00 2001
From: Steven Orvell <sorvell@google.com>
Date: Mon, 27 Jun 2016 18:47:49 -0700
Subject: [PATCH] Add test for not matching `x-foox-bar` given `:host(x-bar)`
 used inside `x-foo`

---
 test/unit/styling-scoped.html | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/test/unit/styling-scoped.html b/test/unit/styling-scoped.html
index d502d5905a..d7547740fe 100644
--- a/test/unit/styling-scoped.html
+++ b/test/unit/styling-scoped.html
@@ -418,6 +418,17 @@
       assertComputed(t, 'auto', 'top');
     });
 
+    test(':host(...) with non-matching type selector does not leak', function() {
+      var t = document.createElement('x-shared1x-shared2');
+      t.textContent = ':host(non-matching-type-selector)';
+      document.body.appendChild(t);
+      assertComputed(t, '0px');
+      var t = document.createElement('x-shared2x-shared1');
+      t.textContent = ':host(non-matching-type-selector)';
+      document.body.appendChild(t);
+      assertComputed(t, '0px');
+    });
+
 });
 
 </script>