Added test for issue 334.

Test for issue 334 (oveerwriting function erases attributes).

Review URL: http://codereview.chromium.org/109009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1863 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

diff --git a/test/mjsunit/bugs/bug-334.js b/test/mjsunit/bugs/bug-334.js
new file mode 100644 (file)
index 0000000..024fc9e
--- /dev/null
+++ b/test/mjsunit/bugs/bug-334.js
@@ -0,0 +1,90 @@
+// Copyright 2008 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --allow-natives-syntax
+
+// Test for http://code.google.com/p/v8/issues/detail?id=334
+
+var READ_ONLY   = 1;
+var DONT_ENUM   = 2;
+var DONT_DELETE = 4;
+
+function func1(){}
+function func2(){}
+
+var object = {__proto__:{}};
+%SetProperty(object, "foo", func1, DONT_ENUM | DONT_DELETE);
+%SetProperty(object, "bar", func1, DONT_ENUM | READ_ONLY);
+%SetProperty(object, "baz", func1, DONT_DELETE | READ_ONLY);
+%SetProperty(object.__proto__, "bif", func1, DONT_ENUM | DONT_DELETE | READ_ONLY);
+object.bif = func2;
+
+function enumerable(obj) {
+  var res = [];
+  for (var i in obj) {
+    res.push(i);
+  }
+  res.sort();
+  return res;
+}
+
+// Sanity check: expected initial state.
+assertArrayEquals(["baz", "bif"], enumerable(object), "enum0");
+assertFalse(delete object.foo, "delete foo");
+assertFalse(delete object.baz, "delete baz");
+assertEquals(func1, object.foo, "read foo");
+assertEquals(func1, object.bar, "read bar");
+assertEquals(func1, object.baz, "read baz");
+assertEquals(func2, object.bif, "read bif");
+
+// Can't assign to READ_ONLY.
+object.bar = "NO WAY";
+assertEquals(func1, object.bar, "read bar 2");
+assertArrayEquals(["baz", "bif"], enumerable(object), "enum1");
+
+// Assignment to non-readonly. Assignment shouldn't change attributes!
+object.foo = func2;
+assertArrayEquals(["baz", "bif"], enumerable(object), "enum2");
+assertFalse(delete object.foo, "delete foo 2");
+
+// Delete should erase attributes if value set again.
+assertTrue(delete object.bar, "delete bar");
+assertFalse("bar" in object, "has bar");
+object.bar = func2;
+assertTrue("bar" in object, "has bar 2");
+assertEquals(func2, object.bar, "read bar 3");
+
+assertArrayEquals(["bar", "baz", "bif"], enumerable(object), "enum3");
+
+// Unshadowing a prototype property exposes its attributes.
+assertTrue(delete object.bif, "delete bif");
+assertArrayEquals(["bar", "baz"], enumerable(object), "enum4");
+assertEquals(func1, object.bif, "read bif 2");
+// Can't delete prototype property.
+assertTrue(delete object.bif, "delete bif 2");
+assertArrayEquals(["bar", "baz"], enumerable(object), "enum5");
+assertEquals(func1, object.bif, "read bif3");