"""
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * - Neither the name of prim nor the names of its contributors may be used to
 * endorse or promote products derived from this software without specific prior
 * written permission.
 *
 * See the NOTICE file distributed with this work for additional information
 * regarding copyright ownership.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
"""
import unittest
import taskrun
from .OrderCheckObserver import OrderCheckObserver

class RandomizeTestCase(unittest.TestCase):
  def __randN(self, b, n):
    rm = taskrun.ResourceManager(taskrun.CounterResource('something', 1, 1))
    order = []
    for num in range(n):
      order.append('@t{}'.format(num))
    for num in range(n):
      order.append('+t{}'.format(num))
      order.append('-t{}'.format(num))
    ob = OrderCheckObserver(order, verbose=False)
    tm = taskrun.TaskManager(observers=[ob], resource_manager=rm)
    for num in range(n):
      taskrun.NopTask(tm, 't{}'.format(num))
    if b:
      tm.randomize()
    tm.run_tasks()
    if b and n > 1:
      self.assertFalse(ob.ok())
    else:
      self.assertTrue(ob.ok())

  def test_all(self):
    for b in [False, True]:
      for n in [0, 1, 4, 5, 6, 1000]:
        self.__randN(b, n)
