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diff --git a/js/src/jit-test/tests/collections/Array-of-nonconfigurable-1.js b/js/src/jit-test/tests/collections/Array-of-nonconfigurable-1.js
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+++ b/js/src/jit-test/tests/collections/Array-of-nonconfigurable-1.js
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+// If Array.of tries to overwrite a non-configurable property, it throws a TypeError.
+
+load(libdir + "asserts.js");
+
+function C() {
+ Object.defineProperty(this, 0, {value: "v", configurable: false});
+}
+assertThrowsInstanceOf(() => Array.of.call(C, 1, 2, 3), TypeError);