1 files changed, 22 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Date/prototype/toString/format.js b/js/src/tests/test262/built-ins/Date/prototype/toString/format.js
new file mode 100644
index 0000000000..70aa3efe27
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Date/prototype/toString/format.js
@@ -0,0 +1,22 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-date.prototype.tostring
+description: Test the format of the time from toString
+info: |
+  Runtime Semantics: ToDateString( _tv_ )
+
+  4. Return the String value formed by concatenating DateString(_t_), `" "`, TimeString(_t_), and TimeZoneString(_tv_).
+
+---*/
+
+let stringRegExp = /^(Sun|Mon|Tue|Wed|Thu|Fri|Sat) (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec) [0-9]{2} [0-9]{4} [0-9]{2}:[0-9]{2}:[0-9]{2} GMT[+-][0-9]{4}( \(.+\))?$/
+let match = stringRegExp.exec(new Date().toString());
+assert.notSameValue(null, match);
+
+// Years are padded to the left with zeroes
+match = stringRegExp.exec(new Date('0020-01-01T00:00:00Z').toString());
+assert.notSameValue(null, match);
+
+reportCompare(0, 0);