# Copyright 2016 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import itertools

import weetest


def TestISlice():
  r = range(10)
  cases = [
      ((r, 5), (0, 1, 2, 3, 4)),
      ((r, 25, 30), ()),
      ((r, 1, None, 3), (1, 4, 7)),
  ]
  for args, want in cases:
    got = tuple(itertools.islice(*args))
    assert got == want, 'tuple(islice%s) == %s, want %s' % (args, got, want)


if __name__ == '__main__':
  weetest.RunTests()
