Right - Are the results right?¶
B - are all the boundary conditions correct?¶
I - can you check the inverse relationships?¶
C - can you cross-check results using other means?¶
E - can you force error conditions to happen?¶
P - are performance characteristics within bounds?¶
The class should have capabilities to:
import math
import unittest
import csv
class directory:
def __init__(self, n, e, a, c):
self.Name= n
self.Email = e
self.Age = a
self.Country= c
class ManageDirectory:
def __init__(self, filename):
self.myList = [];
self.myFile= filename;
def load_from_file(self):
li = [];
with open(self.myFile) as f:
reader = csv.reader(f)
data = [r for r in reader]
data.pop(0);
for r in data:
li.append(directory(r[0], r[1], r[2], r[3]));
self.myList = li;
def saveToCSVFile(self):
with open(self.myFile,'w',newline='') as csvfile:
writer = csv.writer(csvfile)
writer.writerow(['Name', 'Email', 'Age', 'Country'])
for r in self.myList:
writer.writerow([r.Name, r.Email, r.Age, r.Country])
def add(self, e):
if e is None:
return False
try:
self.myList.append(e);
li.saveToCSVFile();
return True
except:
return False
def remove(self, i):
if (i<=1):
return False
try:
self.myList.pop(i-1);
li.saveToCSVFile();
return True
except:
return False
def lookBy_email_age(self, e, a):
match=[];
for r in self.myList:
if((e in r.Email) and (a== r.Age)):
match.append(r)
return match;
def show_list(self):
return self.myList;
li = ManageDirectory('test.csv');
##if the file already contains data you can use this method
####################### li.load_from_file(); #######################
# If there is no data in the file or it does not exist you can add records to the file in this way
li.add(directory("Ram1", "ram1@hotmail.com", "3", "Mexico"));
li.add(directory("Ram2", "ram2@hotmail.com", "2", "Mexico"));
li.add(directory("Ram3", "ram3@hotmail.com", "7", "Mexico"));
li.add(directory("Ram4", "ram4@hotmail.com", "5", "Mexico"));
li.add(directory("Ram", "ram@hotmail.com", "5", "Mexico"));
l= li.show_list()
for row in l:
print(row.Name, row.Email, row.Age, row.Country)
print("----------Removing record 1--------------------")
li.remove(1)
l= li.show_list()
for row in l:
print(row.Name, row.Email, row.Age, row.Country)
print("----------Searching record by email and age--------------------")
res= li.lookBy_email_age('ram4@hotmail.com', '5')
for row in res:
print(row.Name, row.Email, row.Age, row.Country)
print("----------Showing all the records--------------------")
l= li.show_list()
for row in l:
print(row.Name, row.Email, row.Age, row.Country)
class My_tests(unittest.TestCase):
li = ManageDirectory('test.csv');
def test_ceil_positive(self):
res= math.ceil(2.25);
self.assertEqual(3, res);
def test_ceil_negative(self):
res= math.ceil(-2.25);
self.assertEqual(-2, res);
def test_factorial_zero(self):
res = math.factorial(0)
self.assertEqual(1, res)
def test_factorial(self):
res = math.factorial(5)
self.assertEqual(120, res)
def test_pow(self):
res = math.pow(2,2)
self.assertEqual(4, res)
def test_adding_record(self):
res= li.add(directory('testname','testemail@hotmail.com','20','Mex'));
self.assertTrue(res);
def test_adding_record2(self):
res= li.add(directory('testname2','testemail2@hotmail.com','25','USA'));
self.assertTrue(res);
def test_adding_record3(self):
res= li.add(directory('testname3','testemail3@hotmail.com','22','Arg'));
self.assertTrue(res);
def test_adding_record_fail(self):
res= li.add(None);
self.assertFalse(res);
def test_removing_record(self):
res= li.remove(2)
self.assertTrue(res);
def test_removing_record_fail(self):
res= li.remove(0)
self.assertFalse(res);
def test_searching_record(self):
res= li.lookBy_email_age('testemail3@hotmail.com', '22')
self.assertEqual(True, len(res)>0)
def test_searching_no_record(self):
res= li.lookBy_email_age('testemail4@gmail.com', '22')
self.assertEqual(False, len(res)>0)
if __name__ == '__main__':
unittest.main(argv=['first-arg-is-ignored'], exit=False)