Add m-esr52 at 52.6.0

1 files changed, 17 insertions, 0 deletions

diff --git a/js/src/jit-test/tests/proxy/testDirectProxySet4.js b/js/src/jit-test/tests/proxy/testDirectProxySet4.js
new file mode 100644
index 000000000..760d1099d
--- /dev/null
+++ b/js/src/jit-test/tests/proxy/testDirectProxySet4.js
@@ -0,0 +1,17 @@
+load(libdir + "asserts.js");
+
+/*
+ * Throw a TypeError if the trap sets a non-configurable accessor property that
+ * doest not have a setter
+ */
+var target = {};
+Object.defineProperty(target, 'foo', {
+    get: function () {
+        return 'bar'
+    },
+    configurable: false
+});
+
+var handler = { set: () => true };
+for (let p of [new Proxy(target, handler), Proxy.revocable(target, handler).proxy])
+    assertThrowsInstanceOf(() => p['foo'] = 'baz', TypeError);