1 files changed, 41 insertions, 0 deletions
diff --git a/js/src/tests/non262/Reflect/has.js b/js/src/tests/non262/Reflect/has.js
new file mode 100644
index 0000000000..6019a61ed3
--- /dev/null
+++ b/js/src/tests/non262/Reflect/has.js
@@ -0,0 +1,41 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/ */
+
+// Reflect.has is identical to the `in` operator.
+assertEq(Reflect.has({x: 0}, "x"), true);
+assertEq(Reflect.has({x: 0}, "y"), false);
+assertEq(Reflect.has({x: 0}, "toString"), true);
+
+// The target can be an array; Reflect.has works on array elements.
+var arr = ["zero"];
+arr[10000] = 0;
+assertEq(Reflect.has(arr, "10000"), true);
+assertEq(Reflect.has(arr, 10000), true);
+assertEq(Reflect.has(arr, "-0"), false);
+assertEq(Reflect.has(arr, -0), true);
+
+// And string objects (though not string primitives; see target.js).
+var str = new String("hello");
+assertEq(Reflect.has(str, "4"), true);
+assertEq(Reflect.has(str, "-0"), false);
+assertEq(Reflect.has(str, -0), true);
+
+// Proxy without .has() handler method
+var obj = {get prop() {}};
+for (var i = 0; i < 2; i++) {
+    obj = new Proxy(obj, {});
+    assertEq(Reflect.has(obj, "prop"), true);
+    assertEq(Reflect.has(obj, "nope"), false);
+}
+
+// Proxy with .has() handler method
+obj = new Proxy({}, {
+    has(t, k) { return k.startsWith("door"); }
+});
+assertEq(Reflect.has(obj, "doorbell"), true);
+assertEq(Reflect.has(obj, "dormitory"), false);
+
+
+// For more Reflect.has tests, see target.js and propertyKeys.js.
+
+reportCompare(0, 0);