1 files changed, 77 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Date/prototype/setMonth/arg-date-to-number.js b/js/src/tests/test262/built-ins/Date/prototype/setMonth/arg-date-to-number.js
new file mode 100644
index 0000000000..46db557fa8
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Date/prototype/setMonth/arg-date-to-number.js
@@ -0,0 +1,77 @@
+// 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.setmonth
+description: Type coercion of provided "date"
+info: |
+  1. Let t be LocalTime(? thisTimeValue(this value)).
+  2. Let m be ? ToNumber(month).
+  3. If date is not specified, let dt be DateFromTime(t); otherwise, let dt be
+     ? ToNumber(date).
+  4. Let newDate be MakeDate(MakeDay(YearFromTime(t), m, dt),
+     TimeWithinDay(t)).
+  5. Let u be TimeClip(UTC(newDate)).
+  6. Set the [[DateValue]] internal slot of this Date object to u.
+  7. Return u.
+---*/
+
+var date = new Date(2016, 6, 7, 11, 36, 23, 2);
+var callCount = 0;
+var arg = {
+  valueOf: function() {
+    args = arguments;
+    thisValue = this;
+    callCount += 1;
+    return 2;
+  }
+};
+var args, thisValue, returnValue;
+
+returnValue = date.setMonth(6, arg);
+
+assert.sameValue(callCount, 1, 'invoked exactly once');
+assert.sameValue(args.length, 0, 'invoked without arguments');
+assert.sameValue(thisValue, arg, '"this" value');
+assert.sameValue(
+  returnValue,
+  new Date(2016, 6, 2, 11, 36, 23, 2).getTime(),
+  'application of specified value'
+);
+
+returnValue = date.setMonth(6, null);
+
+assert.sameValue(
+  returnValue,
+  new Date(2016, 6, 0, 11, 36, 23, 2).getTime(),
+  'null'
+);
+
+returnValue = date.setMonth(6, true);
+
+assert.sameValue(
+  returnValue,
+  new Date(2016, 6, 1, 11, 36, 23, 2).getTime(),
+  'true'
+);
+
+returnValue = date.setMonth(6, false);
+
+assert.sameValue(
+  returnValue,
+  new Date(2016, 6, 0, 11, 36, 23, 2).getTime(),
+  'false'
+);
+
+returnValue = date.setMonth(6, '   +00200.000E-0002	');
+
+assert.sameValue(
+  returnValue,
+  new Date(2016, 6, 2, 11, 36, 23, 2).getTime(),
+  'string'
+);
+
+returnValue = date.setMonth(6, undefined);
+
+assert.sameValue(returnValue, NaN, 'undefined');
+
+reportCompare(0, 0);