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-rw-r--r--js/src/jit-test/tests/collections/Set-size.js7
1 files changed, 7 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/collections/Set-size.js b/js/src/jit-test/tests/collections/Set-size.js
new file mode 100644
index 0000000000..7aca1d3b75
--- /dev/null
+++ b/js/src/jit-test/tests/collections/Set-size.js
@@ -0,0 +1,7 @@
+// Each Set has its own size.
+
+var s1 = new Set(), s2 = new Set();
+for (var i = 0; i < 30; i++)
+ s1.add(i);
+assertEq(s1.size, 30);
+assertEq(s2.size, 0);