def priority_queue_test(a):
"""
-------------------------------------------------------
Tests priority queue implementation.
Use: pq_test(a)
-------------------------------------------------------
Preconditions:
a - list of data (list of ?)
Postconditions:
the methods of PriorityQueue are tested for both empty and
non-empty priority queues using the data in a:
empty, insert, remove, peek
-------------------------------------------------------
"""
pq = PriorityQueue()
# tests for the priority queue methods go here
# print the results of the method calls and verify by hand
print("Empty pqueue: {}".format(pq.is_empty()))
for i in a:
pq.insert(i)
print("Items inserted into pqueue:")
for j in pq:
print("{}".format(j))
print()
print("Remove: {}".format(pq.remove()))
print()
if not pq.is_empty():
print("Peek: {}".format(pq.peek()))
else:
print("Pqueue is empty.")
return
def prims(g, node):
"""
-------------------------------------------------------
an exmplar of prims algorithum
-------------------------------------------------------
Preconditions:
g - a graph to be navigated
node - a node to start on, in the graph
Postconditions:
prints:
final - a list of how to navigate the graph at the lowest distance
-------------------------------------------------------
"""
final = []
activated =[]
pq = PriorityQueue()
done = False
first_node = g.get_edges(node)
for i in range(len(first_node)):
pq.insert(first_node[i])
while not done:
lowest = pq.remove()
if lowest.end not in activated or lowest.start not in activated:
activated.append(lowest.start)
activated.append(lowest.end)
final.append(lowest)
node = lowest.end
next_node = g.get_edges(node)
for i in range(len(next_node)):
pq.insert(next_node[i])
if pq.is_empty() == True:
done = True
for i in range(len(final)):
print(final[i])
def priority_queue_test(a):
"""
-------------------------------------------------------
Tests priority queue implementation.
Use: pq_test(a)
-------------------------------------------------------
Preconditions:
a - list of data (list of ?)
Postconditions:
the methods of PriorityQueue are tested for both empty and
non-empty priority queues using the data in a:
empty, insert, remove, peek
-------------------------------------------------------
"""
pq = PriorityQueue()
# tests for the priority queue methods go here
print("***Is_empty test 1: {}".format(pq.is_empty()))
print("***Array_to_queue ->")
array_to_pq(pq, a)
print("***Is_empty test 2: {}".format(pq.is_empty()))
print("***Tests remove(): {}".format(pq.remove()))
print("***Peek test: {}".format(pq.peek()))
# print the results of the method calls and verify by hand
print('***Alphabetical test:')
while not pq.is_empty():
item = pq.remove()
print(item)
return
def setUp(self):
self.empty_queue_circular = CircularQueue(10)
full_queue_circular = CircularQueue(SIZE)
values_circular= create_queue(SIZE,full_queue_circular)
self.full_queue_circular = full_queue_circular
self.values_circular=values_circular
#Priority Queue Stuff
self.empty_queue_priority = PriorityQueue()
full_queue_priority = PriorityQueue()
values_priority= create_queue(SIZE,full_queue_priority)
self.full_queue_priority = full_queue_priority
values_priority.sort()
self.values_priority=values_priority
#Sorted List
self.empty_sorted_list = SortedList()
full_sorted_list = SortedList()
values_sorted_list= create_queue(SIZE,full_sorted_list)
self.full_sorted_list = full_sorted_list
values_sorted_list.sort()
self.values_sorted_list=values_sorted_list
def priority_queue_test(a):
"""
-------------------------------------------------------
Tests priority queue implementation.
Use: pq_test(a)
-------------------------------------------------------
Preconditions:
a - list of data (list of ?)
Postconditions:
the methods of PriorityQueue are tested for both empty and
non-empty priority queues using the data in a:
empty, insert, remove, peek
-------------------------------------------------------
"""
pq = PriorityQueue()
for i in a:
pq.insert(i)
print("Is the queue empty: {}".format(pq.is_empty()))
print("Removed: {}".format(pq.remove()))
print("Peek {}".format(pq.peek()))
return
def pq_combine(pq1, pq2):
"""
-------------------------------------------------------
Combines contents of two priority queues into a new
priority queue. Alternate the values from pq1 and pq2.
Use: q3 = pq_combine(pq1, pq2)
-------------------------------------------------------
Preconditions:
pq1 - a priority queue (PriorityQueue)
pq2 - a priority queue (PriorityQueue)
Postconditions:
returns
pq3 - Contents of pq1 and pq2 are moved
into pq3 (PriorityQueue)
-------------------------------------------------------
"""
pq3 = PriorityQueue()
while len(pq1) > 0 or len(pq2) > 0:
if len(pq1) > 0:
pq3.insert(pq1.remove())
if len(pq2) > 0:
pq3.insert(pq2.remove())
return pq3
""" ---------------------------------------------------- q4.py pq_combine ---------------------------------------------------- Author: Qadeer Assan ID: 160257370 Email: [email protected] _updated_="2018-02-01" ---------------------------------------------------- """ from asgn04 import pq_combine from priority_queue_array import PriorityQueue pq1 = PriorityQueue() pq2 = PriorityQueue() pq1.insert(0) pq1.insert(2) pq2.insert(1) pq2.insert(3) pq3 = pq_combine(pq1, pq2) for i in pq3: print(i)
class Test(unittest.TestCase):
def setUp(self):
self.empty_queue_circular = CircularQueue(10)
full_queue_circular = CircularQueue(SIZE)
values_circular= create_queue(SIZE,full_queue_circular)
self.full_queue_circular = full_queue_circular
self.values_circular=values_circular
#Priority Queue Stuff
self.empty_queue_priority = PriorityQueue()
full_queue_priority = PriorityQueue()
values_priority= create_queue(SIZE,full_queue_priority)
self.full_queue_priority = full_queue_priority
values_priority.sort()
self.values_priority=values_priority
#Sorted List
self.empty_sorted_list = SortedList()
full_sorted_list = SortedList()
values_sorted_list= create_queue(SIZE,full_sorted_list)
self.full_sorted_list = full_sorted_list
values_sorted_list.sort()
self.values_sorted_list=values_sorted_list
#Circular
def testCircularQueueIsEmpty_Empty(self):
actual = self.empty_queue_circular.is_empty()
self.assertTrue(actual, "CQ is not empty");
return
def testCircularQueueIsEmpty_NotEmpty(self):
actual = self.full_queue_circular.is_empty()
self.assertFalse(actual, "CQ is empty")
return
def testCircularQueueLen_Empty(self):
expected = 0
actual = len(self.empty_queue_circular)
self.assertEqual(expected, actual, "length is incorrect")
return
def testCircularQueueLen_NotEmpty(self):
actual = len(self.full_queue_circular)
self.assertEqual(SIZE, actual, "length is incorrect")
return
def testCircularQueueIsFull_Empty(self):
actual = self.empty_queue_circular.is_full()
self.assertFalse(actual, "CQ is full")
return
def testCircularQueueIsFull_Full(self):
actual = self.full_queue_circular.is_full()
self.assertTrue(actual, "CQ is not full")
return
def testCircularQueuePeek_Empty(self):
actual = self.empty_queue_circular.peek()
self.assertIsNone(actual, "peeked is None")
return
def testCircularQueuePeek_Full(self):
expected = self.values_circular[0]
actual = self.full_queue_circular.peek()
self.assertEqual(expected,actual);
return
def testCircularQueueRemove_Empty(self):
actual = self.empty_queue_circular.remove()
self.assertIsNone(actual, "peeked is None")
return
def testCircularQueueRemove_Full(self):
expected = self.values_circular[0]
actual = self.full_queue_circular.remove()
self.assertEqual(expected,actual);
self.assertNotEqual(SIZE, len(self.full_queue_circular))
return
def testCircularQueueRemove_FullQueueRemoval(self):
i=0
while not self.full_queue_circular.is_empty():
v = self.full_queue_circular.remove()
self.assertEqual(self.values_circular[i],v)
i+=1
self.assertEqual(0, len(self.full_queue_circular))
#Priority
def testPriorityQueueIsEmpty_Empty(self):
expected = True
actual = self.empty_queue_priority.is_empty()
self.assertEqual(expected,actual);
return
def testPriorityQueueIsEmpty_NotEmpty(self):
expected = False
actual = self.full_queue_priority.is_empty()
self.assertEqual(expected,actual);
return
def testPriorityQueuePeek_Empty(self):
expected = None
actual = self.empty_queue_priority.peek()
self.assertEqual(expected,actual);
return
def testPriorityQueuePeek_Full(self):
expected = self.values_priority[0]
actual = self.full_queue_priority.peek()
self.assertEqual(expected,actual);
return
def testPriorityQueueRemove_Empty(self):
expected = None
actual = self.empty_queue_priority.remove()
self.assertEqual(expected,actual);
return
def testPriorityQueueRemove_Full(self):
expected = self.values_priority[0]
actual = self.full_queue_priority.remove()
self.assertEqual(expected,actual);
self.assertNotEqual(SIZE, len(self.full_queue_priority))
return
def testPriorityQueueRemove_FullQueueRemoval(self):
i=0
while not self.full_queue_priority.is_empty():
v = self.full_queue_priority.remove()
self.assertEqual(self.values_priority[i],v)
i+=1
self.assertEqual(0, len(self.full_queue_priority))
#Sorted List
def testSortedList_is_empty_Empty(self):
expected = True
actual = self.empty_sorted_list.is_empty()
self.assertEqual(expected,actual)
return
def testSortedList_getitem_Empty(self):
expected = None
actual = self.empty_sorted_list[SIZE+1]
self.assertEqual(expected,actual)
return
def testSortedList_index_goodKey_Empty(self):
expected = -1
actual = self.empty_sorted_list.index(0)
self.assertEqual(expected,actual)
return
def testSortedList_index_badKey_Empty(self):
expected = -1
actual = self.empty_sorted_list.index(30)
self.assertEqual(expected,actual)
return
def testSortedList_min_Empty(self):
expected = None
actual = self.empty_sorted_list.min()
self.assertEqual(expected,actual)
return
def testSortedList_max_Empty(self):
expected = None
actual = self.empty_sorted_list.max()
self.assertEqual(expected,actual)
return
def testSortedList_contains_goodKey_Empty(self):
expected = False
actual = 5 in self.empty_sorted_list
self.assertEqual(expected,actual)
return
def testSortedList_contains_badKey_Empty(self):
expected = False
actual = SIZE+1 in self.empty_sorted_list
self.assertEqual(expected,actual)
return
def testSortedList_count_goodKey_Empty(self):
expected = 0
actual = self.empty_sorted_list.count(5)
self.assertEqual(expected,actual)
return
def testSortedList_count_badKey_Empty(self):
expected = 0
actual = self.empty_sorted_list.count(SIZE+1)
self.assertEqual(expected,actual)
return
def testSortedList_remove_goodKey_Empty(self):
expected = None
actual = self.empty_sorted_list.remove(5)
self.assertEqual(expected,actual)
return
def testSortedList_remove_badKey_Empty(self):
expected = None
actual = self.empty_sorted_list.remove(SIZE+1)
self.assertEqual(expected,actual)
return
def testSortedList_split_Empty(self):
test_list=[]
left_list = []
right_list = []
sortedList = SortedList()
for i in test_list:
sortedList.insert(i)
left = SortedList()
right = SortedList()
sortedList.split(left, right)
self.assertEqual(left_list,left._values)
self.assertEqual(right_list,right._values)
return
def testSortedList_copy_Empty(self):
rhs = SortedList()
for i in range(10):
rhs.insert(i)
self.empty_sorted_list.copy(rhs)
i=0
for expected in range(0,10):
self.assertEqual(expected,self.empty_sorted_list[i])
i+=1
return
def testSortedList_clean_Empty(self):
test_list=[]
sortedList = SortedList()
for i in test_list:
sortedList.insert(i)
sortedList.clean()
clean_list=[]
for expected in clean_list:
actual = sortedList.remove(expected)
self.assertEqual(expected, actual)
return
# Full
def testSortedList_is_empty_Full(self):
expected = False
actual = self.full_sorted_list.is_empty()
self.assertEqual(expected,actual)
return
def testSortedList_getitem_Full(self):
expected = self.values_sorted_list[2]
actual = self.full_sorted_list[2]
self.assertEqual(expected,actual)
return
def testSortedList_index_goodKey_Full(self):
value = self.values_sorted_list[SIZE//2]
expected = self.values_sorted_list.index(value)
actual = self.full_sorted_list.index(value)
self.assertEqual(expected,actual)
return
def testSortedList_index_badKey_Full(self):
expected = -1
actual = self.full_sorted_list.index(30)
self.assertEqual(expected,actual)
return
def testSortedList_min_Full(self):
expected = min(self.values_sorted_list)
actual = self.full_sorted_list.min()
self.assertEqual(expected,actual)
return
def testSortedList_max_Full(self):
expected = max(self.values_sorted_list)
actual = self.full_sorted_list.max()
self.assertEqual(expected,actual)
return
def testSortedList_contains_goodKey_Full(self):
expected = True
actual = self.values_sorted_list[SIZE//2] in self.full_sorted_list
self.assertEqual(expected,actual)
return
def testSortedList_contains_badKey_Full(self):
expected = False
actual = SIZE+1 in self.full_sorted_list
self.assertEqual(expected,actual)
return
def testSortedList_count_goodKey_Full(self):
value = self.values_sorted_list[SIZE//2]
expected = self.values_sorted_list.count(value)
actual = self.full_sorted_list.count(value)
self.assertEqual(expected,actual)
return
def testSortedList_count_badKey_Full(self):
expected = 0
actual = self.full_sorted_list.count(SIZE+1)
self.assertEqual(expected,actual)
return
def testSortedList_remove_goodKey_Full(self):
expected = self.values_sorted_list[0]
actual = self.full_sorted_list.remove(expected)
self.assertEqual(expected,actual)
return
def testSortedList_remove_badKey_Full(self):
expected = None
actual = self.full_sorted_list.remove(SIZE+1)
self.assertEqual(expected,actual)
return
def testSortedList_split_Full(self):
test_list=[1,3,5,7,9,2,4,6,8,10]
left_list = [1,3,5,7,9]
right_list = [2,4,6,8,10]
sortedList = SortedList()
for i in test_list:
sortedList.insert(i)
left = SortedList()
right = SortedList()
sortedList.split(left, right)
self.assertEqual(left_list,left._values)
self.assertEqual(right_list,right._values)
return
def testSortedList_copy_Full(self):
rhs = SortedList()
for i in range(10):
rhs.insert(i)
self.full_sorted_list.copy(rhs)
i=0
for expected in range(0,10):
self.assertEqual(expected,self.full_sorted_list[i])
i+=1
return
def testSortedList_clean_Full(self):
test_list=[1,1,2,3,5,5,10]
sortedList = SortedList()
for i in test_list:
sortedList.insert(i)
sortedList.clean()
clean_list=[1,2,3,5,10]
for expected in clean_list:
actual = sortedList.remove(expected)
self.assertEqual(expected, actual)
return
if __name__ == "__main__":
#import sys;sys.argv = ['', 'Test.testName']
unittest.main()
""" ---------------------------------------------------- q3.py ---------------------------------------------------- Author: Qadeer Assan ID: 160257370 Email: [email protected] _updated_="2018-02-01" ---------------------------------------------------- """ from priority_queue_array import PriorityQueue pq1 = PriorityQueue() key = 3 pq1.insert(1) pq1.insert(2) pq1.insert(3) pq1.insert(4) pq2, pq3 = pq1.split(key) for i in pq2: print(i, 'pq2') for i in pq3: print(i, 'pq3')
""" ---------------------------------------------------- q2.py Tests combine() in priority queue. ---------------------------------------------------- Author: Qadeer Assan ID: 160257370 Email: [email protected] _updated_="2018-01-31" ---------------------------------------------------- """ from priority_queue_array import PriorityQueue pq1 = PriorityQueue() pq2 = PriorityQueue() pq1.insert(0) pq2.insert(1) pq1.insert(2) pq2.insert(3) for i in pq1: print(i, "pq1") for i in pq2: print(i, "pq2") pq3 = pq1.combine(pq2) for i in pq3: print(i, "pq3")
