def rebuild_all(self):
from copy import copy
tmp_unique = generate_unique(0,10000,1000)
self.real_heap = MaxHeap(tmp_unique)
self.copy_heap = copy(self.real_heap)
class TestMaxHeap(object):
"""
A test class to test heap operations here
"""
def rebuild_all(self):
from copy import copy
tmp_unique = generate_unique(0,10000,1000)
self.real_heap = MaxHeap(tmp_unique)
self.copy_heap = copy(self.real_heap)
def test_insert(self):
"""
Insert 100 elements
"""
self.rebuild_all()
import random
for i in xrange(0,100):
tmp = random.randint(0,10000)
self.real_heap.insert_to_heap(tmp)
assert self.is_heap_valid(self.real_heap) == True
tmp_max = max(self.real_heap)
real_max = self.real_heap.extract_max()
assert tmp_max == real_max
assert self.is_heap_valid(self.real_heap) == True
if i%10==0:
print "Insertion of %d/%d is completed"%(i,100)
def is_heap_valid(self,heap_candidate):
l = len(heap_candidate)
for member in xrange(0,l):
left = member*2+1
rigth = member*2+2
if not left >= l:
if heap_candidate[member] < heap_candidate[left]:
#print "Left"
#print heap_candidate[member]
#print heap_candidate[left]
#print heap_candidate
return False
if not rigth >=l:
if heap_candidate[member] < heap_candidate[rigth]:
#print "Rigth"
#print heap_candidate[member]
#print heap_candidate[rigth]
#print heap_candidate
return False
return True
def test_deleter(self):
"""
Delete all elements one by one
"""
self.rebuild_all()
l = len(self.real_heap)
#print "Before :",l
for member_remove in xrange(0,l):
self.rebuild_all()
l = len(self.real_heap)
#print "Aftre :",l
#print "To delete :",self.real_heap
#print "member to delete :",member_remove
self.real_heap.new_delete(member_remove)
assert self.is_heap_valid(self.real_heap) == True
#check if it is there ?
tmp_max = max(self.real_heap)
real_max = self.real_heap.extract_max()
assert tmp_max == real_max
assert self.is_heap_valid(self.real_heap) == True
if member_remove%10==0:
print "Deletion of %d/%d is completed"%(member_remove,l)
def test_extract_max(self):
"""
Test it 100 times
"""
for i in xrange(0,100):
self.rebuild_all()
real_max = self.real_heap.extract_max()
#print "real max is :",real_max
#print "the copy max is :",max(self.copy_heap)
assert real_max == max(self.copy_heap)
assert self.is_heap_valid(self.real_heap) == True
if i%10==0:
print "Extraction of %d/%d is completed"%(i,100)
