# Unit Test Example Code With Python:

I have done unit testing for the triangle function which finds if it is Scalene, Isoscalene or Equilateral. I have used Python here. IDLE is best IDE here to run this efficiently.

``````#in the result . dot means pass testcases and fail means failed testcases
import unittest

def triangle(lenA,lenB,lenC): #function unit which will be tested
if(lenA and lenB and lenC):
if(lenA>0 and lenB>0 and lenC>0):
if (isinstance(lenA,int) and isinstance(lenB,int) and isinstance(lenC,int)):
if lenA == lenB == lenC:
return "Equilateral"
elif lenA==lenB or lenB==lenC or lenC == lenA:
return "Isoscalene"
else:
return 'Scalene'
else:
return "Not integer"
else:
return "Error, values must be >0"
else:
return "Three values must be given"

class testingTriangle(unittest.TestCase):

def test_trianglefunc_1(self):
print("\nTest-1 called..")
#Arrange= arrange the prerequisite
a=10
b=10
c=10

#Act= run the test
result=triangle(a,b,c)

#Assert= verify the test
self.assertEqual('Equilateral', result)

def test_trianglefunc_2(self):
print("\nTest-2 called..")
#Arrange= arrange the prerequisite
a=3
b=3
c=4

#Act= run the test
result=triangle(a,b,c)

#Assert= verify the test
self.assertEqual('Scalene', result)

def test_trianglefunc_3(self):
print("\nTest-3 called..")
#Arrange= arrange the prerequisite
a=2.5
b=7.5
c=8.7

#Act= run the test
result=triangle(a,b,c)

#Assert= verify the test
self.assertEqual('Integer', result)

def test_trianglefunc_4(self):
print("\nTest-4 called..\n")
#Arrange= arrange the prerequisite
a=-1
b=-1
c=-1

#Act= run the test
result=triangle(a,b,c)

#Assert= verify the test
self.assertEqual('Triangle', result)

def test_trianglefunc_5(self):
print("\nTest-5 called..")
#Arrange= arrange the prerequisite
a=0
b=0
c=0

#Act= run the test
result=triangle(a,b,c)

#Assert= verify the test
self.assertEqual('Triangle', result)

def test_trianglefunc_6(self):
print("\nTest-6 called..")
#Arrange= arrange the prerequisite
a=1
b=1
c=1

#Act= run the test
result=triangle(a,b,c)

#Assert= verify the test
self.assertEqual('Equilateral', result)

def test_trianglefunc_7(self):
print("\nTest-7 called..")
#Arrange= arrange the prerequisite
a=12
b=NULL
c=NULL

#Act= run the test
result=triangle(a,b,c)

#Assert= verify the test
self.assertRaises('Errors', result)

if __name__== "__main__":
unittest.main()
`````` 