Add m-esr52 at 52.6.0

1 files changed, 20 insertions, 0 deletions

diff --git a/js/src/jit-test/tests/TypedObject/array-hasproperty.js b/js/src/jit-test/tests/TypedObject/array-hasproperty.js
new file mode 100644
index 000000000..3e119af33
--- /dev/null
+++ b/js/src/jit-test/tests/TypedObject/array-hasproperty.js
@@ -0,0 +1,20 @@
+if (!this.hasOwnProperty("TypedObject"))
+  quit();
+
+var array = new (TypedObject.uint8.array(5));
+
+for (var i = 0; i < array.length; i++)
+    assertEq(i in array, true);
+
+for (var v of [20, 300, -1, 5, -10, Math.pow(2, 32) - 1, -Math.pow(2, 32)])
+    assertEq(v in array, false);
+
+// Don't inherit elements
+array.__proto__[50] = "hello";
+assertEq(array.__proto__[50], "hello");
+assertEq(50 in array, false);
+
+// Do inherit normal properties
+array.__proto__.a = "world";
+assertEq(array.__proto__.a, "world");
+assertEq("a" in array, true);