tests/app/soc/logic/test_allocations.py
changeset 1056 d0c82bdc2de2
child 1308 35b75ffcbb37
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/app/soc/logic/test_allocations.py	Thu Jan 29 01:39:31 2009 +0000
@@ -0,0 +1,217 @@
+#!/usr/bin/python2.5
+#
+# Copyright 2008 the Melange authors.
+#
+# 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.
+
+
+__authors__ = [
+  '"Sverre Rabbelier" <sverre@rabbelier.nl>',
+  ]
+
+
+import unittest
+
+from soc.logic import allocations
+
+
+class Student(object):
+  """Mocker for Student object.
+  """
+
+  def __init__(self, id):
+    """Simple init that stores id for later use.
+    """
+
+    self.id = id
+
+  def __eq__(self, other):
+    """Simple eq that compares ids.
+    """
+
+    return self.id == other.id
+
+  def __str__(self):
+    """Simple str that returns str(id).
+    """
+
+    return str(self.id)
+
+  def __repr__(self):
+    """Simple repr that returns repr(id).
+    """
+
+    return repr(self.id)
+
+
+class AllocationsTest(unittest.TestCase):
+  """Tests related to the slot allocation algorithm.
+  """
+
+  def setUp(self):
+    """Set up required for the slot allocation tests.
+    """
+
+    self.slots = 60
+    self.max_slots_per_org = 40
+    self.allocated = 0
+
+    self.applications = {
+        'asf': self.allocate(20),
+        'gcc': self.allocate(15),
+        'git': self.allocate(6),
+        'google': self.allocate(3),
+        'melange': self.allocate(100),
+        }
+
+    self.orgs = self.applications.keys()
+
+    self.allocater = allocations.Allocator(self.orgs, self.applications,
+                                           self.slots, self.max_slots_per_org)
+
+  def allocate(self, count):
+    """Returns a list with count new student objects.
+    """
+
+    i = self.allocated
+    j = i + count
+    self.allocated += count
+
+    return [Student(i) for i in range(i,j)]
+
+  def testAllocate(self):
+    """Test that the allocate helper works properly.
+
+    A meta-test, it never hurts to be certain.
+    """
+
+    stash = self.allocated
+    self.allocated = 0
+
+    expected = [Student(0), Student(1), Student(2)]
+    actual = self.allocate(3)
+    self.failUnlessEqual(expected, actual)
+
+    expected = []
+    actual = self.allocate(0)
+    self.failUnlessEqual(expected, actual)
+
+    expected = [Student(3)]
+    actual = self.allocate(1)
+    self.failUnlessEqual(expected, actual)
+
+    self.allocated = stash
+
+  def testInitialAllocation(self):
+    """Test that an allocation with no arguments does not crash.
+    """
+
+    locked_slots = {}
+    adjusted_slots = {}
+    self.allocater.allocate(locked_slots, adjusted_slots)
+
+  def testLockedSlotsAllocation(self):
+    """Test that an allocation with an org locked does not crash.
+    """
+
+    locked_slots = {'melange': 3}
+    adjusted_slots = {}
+    self.allocater.allocate(locked_slots, adjusted_slots)
+
+  def testAdjustedSlotsAllocation(self):
+    """Test that an allocation with an org adjusted does not crash.
+    """
+
+    locked_slots = {}
+    adjusted_slots = {'google': -1}
+    self.allocater.allocate(locked_slots, adjusted_slots)
+
+  def testInvalidSlotsAllocation(self):
+    """Test that an allocation with an org locked and adjusted errors out.
+    """
+
+    locked_slots = {'git': 1}
+    adjusted_slots = {'git': 1}
+    self.failUnlessRaises(allocations.Error, self.allocater.allocate,
+                          locked_slots, adjusted_slots)
+
+  def testNonExistantOrgAllocation1(self):
+    """Test that locking a non-existing org errors out.
+    """
+
+    locked_slots = {'gnome': 1}
+    adjusted_slots = {}
+    self.failUnlessRaises(allocations.Error, self.allocater.allocate,
+                          locked_slots, adjusted_slots)
+
+  def testNonExistantOrgAllocation2(self):
+    """Test that adjusting a non-existing org errors out.
+    """
+
+    locked_slots = {}
+    adjusted_slots = {'gnome': 1}
+    self.failUnlessRaises(allocations.Error, self.allocater.allocate,
+                          locked_slots, adjusted_slots)
+
+  def testInitialAllocationBelowMaxSlots(self):
+    """Test that the initial allocation is below the max slot count.
+    """
+
+    locked_slots = {}
+    adjusted_slots = {}
+
+    result = self.allocater.allocate(locked_slots, adjusted_slots)
+    self.failIf(sum(result.values()) > self.slots)
+
+  def testLockedAllocationCorrect(self):
+    """Test that locking an allocation assigns the org the allocation.
+    """
+
+    locked_slots = {'git': 6}
+    adjusted_slots = {}
+
+    result = self.allocater.allocate(locked_slots, adjusted_slots)
+
+    expected = 6
+    actual = result['git']
+
+    self.failUnlessEqual(expected, actual)
+
+  def testOverassignedAllocationCorrect(self):
+    """Test that over-assigned allocation are cut down.
+    """
+
+    locked_slots = {'git': 20}
+    adjusted_slots = {}
+
+    result = self.allocater.allocate(locked_slots, adjusted_slots)
+
+    expected = 6
+    actual = result['git']
+
+    self.failUnlessEqual(expected, actual)
+
+  def testAdjustedAllocationCorrect(self):
+    """Test that locking an allocation assigns the org the allocation.
+    """
+
+    locked_slots = {}
+    adjusted_slots = {'google': 1}
+
+    with_adjusting = self.allocater.allocate(locked_slots, adjusted_slots)
+    without_adjusting = self.allocater.allocate(locked_slots, {})
+
+    expected = without_adjusting['google'] + 1
+    actual = with_adjusting['google']
+
+    self.failUnlessEqual(expected, actual)