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-rw-r--r--js/src/jit-test/tests/collections/Set-clear-6.js6
1 files changed, 6 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/collections/Set-clear-6.js b/js/src/jit-test/tests/collections/Set-clear-6.js
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index 000000000..5c8cfce00
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+++ b/js/src/jit-test/tests/collections/Set-clear-6.js
@@ -0,0 +1,6 @@
+// Clearing a Set doesn't affect expando properties.
+
+var s = new Set();
+s.x = 3;
+s.clear();
+assertEq(s.x, 3);