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-rw-r--r--js/src/jit-test/tests/collections/Set-surfaces-3.js10
1 files changed, 10 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/collections/Set-surfaces-3.js b/js/src/jit-test/tests/collections/Set-surfaces-3.js
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index 000000000..b487b7b22
--- /dev/null
+++ b/js/src/jit-test/tests/collections/Set-surfaces-3.js
@@ -0,0 +1,10 @@
+// Set methods work when arguments are omitted.
+
+var s = new Set;
+assertEq(s.has(), false);
+assertEq(s.delete(), false);
+assertEq(s.has(), false);
+assertEq(s.add(), s);
+assertEq(s.has(), true);
+assertEq(s.delete(), true);
+assertEq(s.has(), false);