def test_del_exception(self):
r = DLList([1,2,3,'cat'])
try:
del r[5]
self.assertTrue(False,'no exception/ or right type of exception raised')
except IndexError:
pass
def test_find(self):
r = DLList([1,2,'cat'])
try:
a = r._find(3)
self.assertTrue(False,'no AssertionError rasied when needed for _find')
except AssertionError:
pass
def test_insert_Exception(self):
r = DLList([1,2,'cat'])
try:
r.insert(4,'dog')
self.assertTrue(False,'no Exception/or tight type of exception raised')
except IndexError:
pass
def testIndex_Exception(self):
r=DLList([1,2,'boy','cat',9])
try:
b=r.index('seed')
self.assertTrue(False,'No Exception/or Right Type of Error Raised')
except ValueError:
pass
def test_find(self):
r = DLList([1,2,'cat'])
a = r._find(2)
#Check it's the listNode object
#also check it's the right value
self.assertTrue(isinstance(a,DListNode))
self.assertEqual(a.value,'cat')
def test_List(self):
points = 0.5
s = DLList.DLList()
try:
s.remove(0)
except IndexError:
points += 0.5
else:
print("List remove is not correct")
try:
s.add(0, "a")
s.add(1, "c")
s.add(1, "b")
self.assertAlmostEqual(s.remove(1), "b")
s.add(1, "d")
self.assertAlmostEqual(s.remove(1), "d")
s.add(0, "e")
s.add(3, "f")
self.assertAlmostEqual(s.remove(2), "c")
self.assertAlmostEqual(s.remove(2), "f")
self.assertAlmostEqual(s.remove(1), "a")
self.assertAlmostEqual(s.remove(0), "e")
points += 1
except:
print("List is not correct")
finally:
print(f"List {points} Points")
def testRemove_Exception(self):
r=DLList([1,2,'boy','cat',9])
try:
r.remove('seed')
self.assertTrue(False,'No excpetion /or right type of Exception is raised')
except ValueError:
pass
def testAppend(self):
r = DLList()
r._append(1)
r._append(2)
r._append('cat')
r._append(4)
self.assertEqual(str(r),str([1,2,'cat',4]))
def testSetitem(self):
r=DLList([1,2,'cat'])
r.__setitem__(2,0)
self.assertEqual(str(r),str([1,2,0]))
r.__setitem__(0,0)
r.__setitem__(1,0)
self.assertEqual(str(r),str([0,0,0]))
def menu_dllist():
dllist = DLList.DLList()
option =""
while option != '0':
print("""
1 Add to DLList
2 Remove from DLList
3 Test Palindrome
4 Print DLList
5 Reverse DLList
0 Return to main menu
""")
option = input()
if option == "1":
print("Add an element")
DLList.append(input())
elif option == "2":
print("Select index to remove")
DLList.remove(input())
elif option == "3":
dllist.isPalindrome()
elif option == "4":
return print(dllist)
elif option == "5":
dllist.reverse()
def testpop_exception(self):
r=DLList([1,2,'boy','cat',9])
try:
a = r.pop(20)
self.assertTrue(False,'No Exception or/ right type of exception raised')
except IndexError:
pass
def test_set_Exception(self):
r = DLList([1,2,'cat'])
try:
r[3]
self.assertTrue(False,'No Exception or right type of exception raised')
except IndexError:
pass
def label(this, node=0):
if node == 0:
node = this.nodes()[0]
g.home = node
node.d = 0
queue = DLList.DLList()
queue.append(node)
while (len(queue) > 0):
n1 = queue.pop()
for n2 in this.out_nodes(n1):
if not hasattr(n2, 'd'):
n2.d = n1.d + 1
queue.append(n2)
def main():
covid19 = covid19_Simulation()
al = DLList.DLList()
for population in range(covid19.people):
person = Person()
al.append(person)
#With lockdown
g1 = AdjacencyList.AdjacencyList(covid19.people)
#Without lockdown
g2 = AdjacencyList.AdjacencyList(covid19.people)
covid19.getInteractionGraph(g1, al)
covid19.initialInfectedNodes(g1, al)
covid19.simulation(g1, 0, al)
matplot.show()
def test_reverse(self):
points = 0.5
s = DLList.DLList()
try:
for i in range(6, 0, -1):
s.append(i - 1)
s.reverse()
points += 0.5
for i in range(6):
self.assertAlmostEqual(s.get(i), i)
points += 1
except:
print("Reverse is not correct")
finally:
print(f"Reverse: {points} Points")
def loadCatalog(self, fileName: str):
#Graphs
self.indexKeys = ChainedHashTable.ChainedHashTable()
self.bookCatalog = DLList.DLList() #or arraylist
with open(fileName, encoding='utf-8') as f:
start_time = time.time()
count = 0 #line number
for line in f:
(key, title, group, rank, similar) = line.split("^")
b = Book.Book(key, title, group, rank, similar)
self.bookCatalog.append(b)
self.indexKeys.add(b.key, count)
#self.indexKeys.add(key, line)
count += 1
elapsed_time = time.time() - start_time
print(
f"Loaded {self.bookCatalog.size()} books into bookCatalog in {elapsed_time} seconds"
)
#self.similar_graph()
#def similar_graph(self,k : int):
self.similarGraph = AdjacencyList.AdjacencyList(
self.bookCatalog.size())
with open(fileName, encoding='utf-8') as f:
start_time = time.time()
count = 0
for line in f:
(key, title, group, rank, similar) = line.split("^")
l = similar.split()
for k in range(1, len(l)):
j = self.indexKeys.find(l[k])
#print(j)
if j != None: #is not
self.similarGraph.add_edge(count, j)
count += 1
elapsed_time = time.time() - start_time
print(
f"Loaded {self.similarGraph.n} books into Graph in {elapsed_time} seconds"
)
def loadCatalog(self, fileName: str):
'''
loadCatalog: Read the file filenName and creates the array list with all books.
book records are separated by ^. The order is key,
title, group, rank (number of copies sold) and similar books
'''
self.bookCatalog = DLList.DLList()
with open(fileName) as f:
# The following line is the time that the computation starts
start_time = time.time()
for line in f:
(key, title, group, rank, similar) = line.split("^")
s = Book.Book(key, title, group, rank, similar)
self.bookCatalog.append(s)
# The following line is used to calculate the total time
# of execution
elapsed_time = time.time() - start_time
print(
f"Loading {self.bookCatalog.size()} books in {elapsed_time} seconds"
)
def test_iter(self):
r = DLList()
r._append(0)
r._append(1)
r._append(2)
r._append(3)
r._append(4)
r._append(5)
i = 0
_iter = r.__iter__()
while True:
try:
a = _iter.__next__()
self.assertEqual(i,a)
i = i +1
except StopIteration:
return
except:
self.assertTrue(False,'Iterating Is not working properly')
def test_ispalindrome(self):
points = 0.5
s = DLList.DLList()
try:
self.assertAlmostEqual(s.isPalindrome(), True)
s.append("a")
self.assertAlmostEqual(s.isPalindrome(), True)
points += 0.5
s.append("b")
self.assertAlmostEqual(s.isPalindrome(), False)
s.append("c")
self.assertAlmostEqual(s.isPalindrome(), False)
s.append("b")
self.assertAlmostEqual(s.isPalindrome(), False)
s.append("a")
self.assertAlmostEqual(s.isPalindrome(), True)
points += 1
except:
print("Is_palindrome is not correct")
finally:
print(f"Is Palindrome: {points} Points")
def testGetitem(self):
r = DLList([1,2,'cat'])
s = r.__getitem__(2)
self.assertEqual(s,'cat')
s = r.__getitem__(1)
self.assertEqual(s,2)
def testLength(self):
r = DLList([1,2,'cat'])
self.assertEqual(len(r),3)
def testIter_visual(self):
r=DLList([0,1,2,3,4,5,6,7])
for i in r:
print (i)
def test_Constructor_seq(self):
r = DLList([1,2,'cat'])
self.assertEqual(str(r),str([1,2,'cat']))
def testRemove_start(self):
r=DLList([1,2,'boy','cat',9])
r.remove(1)
self.assertEqual(str(r),str([2,'boy','cat',9]))
def test_Constructor_Exception(self):
try:
r = DLList(55)
except TypeError:
pass
def testIndex_end(self):
r=DLList([1,2,'boy','cat',9])
b=r.index(9)
self.assertEqual(b,4)
def testIndex_start(self):
r=DLList([1,2,'boy','cat',9])
b=r.index(1)
self.assertEqual(b,0)
def testRemove_mid(self):
r=DLList([1,2,'boy','cat',9])
r.remove('boy')
self.assertEqual(str(r),str([1,2,'cat',9]))
def testIndex_mid(self):
r=DLList([1,2,'boy','cat',9])
b=r.index('boy')
self.assertEqual(b,2)
def testpop_start(self):
r=DLList([1,2,'boy','cat',9])
a = r.pop(0)
self.assertEqual(a,1)
self.assertEqual(str(r),str([2,'boy','cat',9]))