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-rw-r--r--js/src/jit-test/tests/collections/Map-scale.js8
1 files changed, 8 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/collections/Map-scale.js b/js/src/jit-test/tests/collections/Map-scale.js
new file mode 100644
index 000000000..a456d1d34
--- /dev/null
+++ b/js/src/jit-test/tests/collections/Map-scale.js
@@ -0,0 +1,8 @@
+// Maps can hold at least 64K values.
+
+var N = 1 << 16;
+var m = new Map;
+for (var i = 0; i < N; i++)
+ assertEq(m.set(i, i), m);
+for (var i = 0; i < N; i++)
+ assertEq(m.get(i), i);