1// Copyright JS Foundation and other contributors, http://js.foundation
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15for (var y = 1950; y < 2050; y++) {
16  for (var m = 0; m < 12; m++) {
17    var last_date = new Date(y, m, 1).getDay ();
18    assert (!isNaN (last_date));
19    for (var d = 1; d < 32; d++) {
20      assert (last_date == new Date(y, m, d).getDay ());
21      last_date = (last_date + 1) % 7;
22    }
23  }
24}
25