1 files changed, 44 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Date/prototype/getUTCMonth/this-value-valid-date.js b/js/src/tests/test262/built-ins/Date/prototype/getUTCMonth/this-value-valid-date.js
new file mode 100644
index 0000000000..4873c783a6
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Date/prototype/getUTCMonth/this-value-valid-date.js
@@ -0,0 +1,44 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-date.prototype.getutcmonth
+description: Return value for valid dates
+info: |
+  1. Let t be ? thisTimeValue(this value).
+  2. If t is NaN, return NaN.
+  3. Return MonthFromTime(t).
+---*/
+
+var july31 = 1469923200000;
+var dec31 = 1483142400000;
+var dayMs = 24 * 60 * 60 * 1000;
+
+assert.sameValue(new Date(july31).getUTCMonth(), 6, 'first millisecond');
+assert.sameValue(
+  new Date(july31 - 1).getUTCMonth(), 6, 'previous millisecond'
+);
+assert.sameValue(
+  new Date(july31 + dayMs - 1).getUTCMonth(), 6, 'final millisecond'
+);
+assert.sameValue(
+  new Date(july31 + dayMs).getUTCMonth(), 7, 'subsequent millisecond'
+);
+
+assert.sameValue(
+  new Date(dec31).getUTCMonth(), 11, 'first millisecond (year boundary)'
+);
+assert.sameValue(
+  new Date(dec31 - 1).getUTCMonth(), 11, 'previous millisecond (year boundary)'
+);
+assert.sameValue(
+  new Date(dec31 + dayMs - 1).getUTCMonth(),
+  11,
+  'final millisecond (year boundary)'
+);
+assert.sameValue(
+  new Date(dec31 + dayMs).getUTCMonth(),
+  0,
+  'subsequent millisecond (year boundary)'
+);
+
+reportCompare(0, 0);