diff -r 000000000000 -r 6474c204b198 js/src/jsapi-tests/testRegExp.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jsapi-tests/testRegExp.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,56 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "jsapi-tests/tests.h"
+
+BEGIN_TEST(testObjectIsRegExp)
+{
+    JS::RootedValue val(cx);
+
+    EVAL("new Object", &val);
+    JS::RootedObject obj(cx, JSVAL_TO_OBJECT(val));
+    CHECK(!JS_ObjectIsRegExp(cx, obj));
+
+    EVAL("/foopy/", &val);
+    obj = JSVAL_TO_OBJECT(val);
+    CHECK(JS_ObjectIsRegExp(cx, obj));
+
+    return true;
+}
+END_TEST(testObjectIsRegExp)
+
+BEGIN_TEST(testGetRegExpFlags)
+{
+    JS::RootedValue val(cx);
+    JS::RootedObject obj(cx);
+
+    EVAL("/foopy/", &val);
+    obj = JSVAL_TO_OBJECT(val);
+    CHECK_EQUAL(JS_GetRegExpFlags(cx, obj), 0);
+
+    EVAL("/foopy/g", &val);
+    obj = JSVAL_TO_OBJECT(val);
+    CHECK_EQUAL(JS_GetRegExpFlags(cx, obj), JSREG_GLOB);
+
+    EVAL("/foopy/gi", &val);
+    obj = JSVAL_TO_OBJECT(val);
+    CHECK_EQUAL(JS_GetRegExpFlags(cx, obj), (JSREG_FOLD | JSREG_GLOB));
+
+    return true;
+}
+END_TEST(testGetRegExpFlags)
+
+BEGIN_TEST(testGetRegExpSource)
+{
+    JS::RootedValue val(cx);
+    JS::RootedObject obj(cx);
+
+    EVAL("/foopy/", &val);
+    obj = JSVAL_TO_OBJECT(val);
+    JSString *source = JS_GetRegExpSource(cx, obj);
+    CHECK(JS_FlatStringEqualsAscii(JS_ASSERT_STRING_IS_FLAT(source), "foopy"));
+
+    return true;
+}
+END_TEST(testGetRegExpSource)