1 files changed, 19 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Date/prototype/valueOf/S15.9.5.8_A1_T2.js b/js/src/tests/test262/built-ins/Date/prototype/valueOf/S15.9.5.8_A1_T2.js
new file mode 100644
index 0000000000..f19351c81b
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Date/prototype/valueOf/S15.9.5.8_A1_T2.js
@@ -0,0 +1,19 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: The Date.prototype property "valueOf" has { DontEnum } attributes
+esid: sec-date.prototype.valueof
+description: Checking absence of DontDelete attribute
+---*/
+
+assert.notSameValue(delete Date.prototype.valueOf, false, 'The value of delete Date.prototype.valueOf is not false');
+
+assert(
+  !Date.prototype.hasOwnProperty('valueOf'),
+  'The value of !Date.prototype.hasOwnProperty(\'valueOf\') is expected to be true'
+);
+
+// TODO: Convert to verifyProperty() format.
+
+reportCompare(0, 0);