From 2aa4a82499d4becd2284cdb482213d541b8804dd Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 28 Apr 2024 16:29:10 +0200
Subject: Adding upstream version 86.0.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../collections/WeakMap-constructor-duplicates.js  | 27 ++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 js/src/jit-test/tests/collections/WeakMap-constructor-duplicates.js

(limited to 'js/src/jit-test/tests/collections/WeakMap-constructor-duplicates.js')

diff --git a/js/src/jit-test/tests/collections/WeakMap-constructor-duplicates.js b/js/src/jit-test/tests/collections/WeakMap-constructor-duplicates.js
new file mode 100644
index 0000000000..5e5f3a58e9
--- /dev/null
+++ b/js/src/jit-test/tests/collections/WeakMap-constructor-duplicates.js
@@ -0,0 +1,27 @@
+// When the argument to WeakMap contains a key multiple times, the last value
+// is retained.
+
+var k1 = {};
+var v1 = 42;
+var k2 = {};
+var v2 = 43;
+var k3 = {};
+var v3 = 44;
+var k4 = {};
+
+var wrong1 = 8;
+var wrong2 = 9;
+var wrong3 = 10;
+
+var arr = [[k1, wrong1], [k2, v2], [k3, wrong2], [k1, wrong3], [k3, v3], [k1, v1]];
+
+var m = new WeakMap(arr);
+
+assertEq(m.has(k1), true);
+assertEq(m.has(k2), true);
+assertEq(m.has(k3), true);
+assertEq(m.has(k4), false);
+assertEq(m.get(k1), v1);
+assertEq(m.get(k2), v2);
+assertEq(m.get(k3), v3);
+assertEq(m.get(k4), undefined);
-- 
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