1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Date/UTC/year-offset.js b/js/src/tests/test262/built-ins/Date/UTC/year-offset.js
new file mode 100644
index 0000000000..cea354ea4e
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Date/UTC/year-offset.js
@@ -0,0 +1,28 @@
+// 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.utc
+description: Conditional offset of provided `year` value
+info: |
+  1. Let y be ? ToNumber(year).
+  [...]
+  8. If y is not NaN and 0 ≤ ToInteger(y) ≤ 99, let yr be 1900+ToInteger(y);
+     otherwise, let yr be y.
+  9. Return TimeClip(MakeDate(MakeDay(yr, m, dt), MakeTime(h, min, s, milli))). 
+---*/
+
+assert.sameValue(Date.UTC(-1, 0), -62198755200000, '-1 (no offset)');
+
+assert.sameValue(Date.UTC(0, 0), -2208988800000, '+0');
+assert.sameValue(Date.UTC(-0, 0), -2208988800000, '-0');
+assert.sameValue(Date.UTC(-0.999999, 0), -2208988800000, '-0.999999');
+
+assert.sameValue(Date.UTC(70, 0), 0, '70');
+assert.sameValue(Date.UTC(70, 0), 0, '70.999999');
+
+assert.sameValue(Date.UTC(99, 0), 915148800000, '99');
+assert.sameValue(Date.UTC(99.999999, 0), 915148800000, '99.999999');
+
+assert.sameValue(Date.UTC(100, 0), -59011459200000, '100 (no offset)');
+
+reportCompare(0, 0);