1 files changed, 82 insertions, 0 deletions
diff --git a/js/src/tests/non262/RegExp/compile-lastIndex.js b/js/src/tests/non262/RegExp/compile-lastIndex.js
new file mode 100644
index 0000000000..5bd7e0b983
--- /dev/null
+++ b/js/src/tests/non262/RegExp/compile-lastIndex.js
@@ -0,0 +1,82 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+var BUGNUMBER = 1253099;
+var summary =
+  "RegExp.prototype.compile must perform all its steps *except* setting " +
+  ".lastIndex, then throw, when provided a RegExp whose .lastIndex has been " +
+  "made non-writable";
+
+print(BUGNUMBER + ": " + summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+var regex = /foo/i;
+
+// Aside from making .lastIndex non-writable, this has one incidental effect
+// ubiquitously tested through the remainder of this test:
+//
+//   * RegExp.prototype.compile will do everything it ordinarily does, BUT it
+//     will throw a TypeError when attempting to zero .lastIndex immediately
+//     before succeeding overall.
+//
+// Ain't it great?
+Object.defineProperty(regex, "lastIndex", { value: 42, writable: false });
+
+assertEq(regex.global, false);
+assertEq(regex.ignoreCase, true);
+assertEq(regex.multiline, false);
+assertEq(regex.unicode, false);
+assertEq(regex.sticky, false);
+assertEq(Object.getOwnPropertyDescriptor(regex, "lastIndex").writable, false);
+assertEq(regex.lastIndex, 42);
+
+assertEq(regex.test("foo"), true);
+assertEq(regex.test("FOO"), true);
+assertEq(regex.test("bar"), false);
+assertEq(regex.test("BAR"), false);
+
+assertThrowsInstanceOf(() => regex.compile("bar"), TypeError);
+
+assertEq(regex.global, false);
+assertEq(regex.ignoreCase, false);
+assertEq(regex.multiline, false);
+assertEq(regex.unicode, false);
+assertEq(regex.sticky, false);
+assertEq(Object.getOwnPropertyDescriptor(regex, "lastIndex").writable, false);
+assertEq(regex.lastIndex, 42);
+assertEq(regex.test("foo"), false);
+assertEq(regex.test("FOO"), false);
+assertEq(regex.test("bar"), true);
+assertEq(regex.test("BAR"), false);
+
+assertThrowsInstanceOf(() => regex.compile("^baz", "m"), TypeError);
+
+assertEq(regex.global, false);
+assertEq(regex.ignoreCase, false);
+assertEq(regex.multiline, true);
+assertEq(regex.unicode, false);
+assertEq(regex.sticky, false);
+assertEq(Object.getOwnPropertyDescriptor(regex, "lastIndex").writable, false);
+assertEq(regex.lastIndex, 42);
+assertEq(regex.test("foo"), false);
+assertEq(regex.test("FOO"), false);
+assertEq(regex.test("bar"), false);
+assertEq(regex.test("BAR"), false);
+assertEq(regex.test("baz"), true);
+assertEq(regex.test("BAZ"), false);
+assertEq(regex.test("012345678901234567890123456789012345678901baz"), false);
+assertEq(regex.test("012345678901234567890123456789012345678901\nbaz"), true);
+assertEq(regex.test("012345678901234567890123456789012345678901BAZ"), false);
+assertEq(regex.test("012345678901234567890123456789012345678901\nBAZ"), false);
+
+/******************************************************************************/
+
+if (typeof reportCompare === "function")
+  reportCompare(true, true);
+
+print("Tests complete");