Add m-esr52 at 52.6.0

1 files changed, 36 insertions, 0 deletions

diff --git a/js/src/jit-test/tests/basic/bug703157.js b/js/src/jit-test/tests/basic/bug703157.js
new file mode 100644
index 000000000..2acdd92eb
--- /dev/null
+++ b/js/src/jit-test/tests/basic/bug703157.js
@@ -0,0 +1,36 @@
+// Define a test object
+var test = {x:1,y:2};
+
+// Put the object into dictionary mode by deleting 
+// a property that was not the last one added.
+delete test.x;
+
+// Define a an accessor property with a setter that 
+// itself calls Object.defineProperty
+Object.defineProperty(test, "foo", {
+    get: function() { return 1; },
+    set: function(v) { 
+        Object.defineProperty(this, "foo", { value: v });
+        // Prints the correct object descriptor
+        assertEq(this.foo, 33);
+    },
+    configurable: true
+});
+
+// Add another property, so generateOwnShape does not replace the foo property.
+test.other = 0;
+
+// This line prints 1, as expected
+assertEq(test.foo, 1);
+
+// Now set the property.  This calls the setter method above.
+// And the setter method prints the expected value and property descriptor.
+test.foo = 33;
+
+// Finally read the newly set value.
+assertEq(test.foo, 33);
+
+// Check that enumeration order is correct.
+var arr = [];
+for (var x in test) arr.push(x);
+assertEq("" + arr, "y,other");