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+--- Thread: Help me to complete unittest (/thread-7914.html)
Help me to complete unittest - FooNtik - Jan-29-2018
Hello, everyone!
I have made a function, which receives three integer inputs for the lengths of the sides of a triangle and returns one of four values to determine the triangle type and I need to make unittest, but nothing happends. Can someone correct my code or give advise?
tri.py
a = int(input("a = "))
b = int(input("b = "))
c = int(input("c = "))
def triangle_type(a,b,c):
print("Enter lenghts of triangle sides:")
if a<0 or b<0 or c<0:
return "4=error"
else:
if a+b>c and a+c>b and b+c>a:
if a==b==c:
return "3=equilateral"
elif a==b or a==c or b==c:
return "2=isosceles"
else:
return "1=scalene"
else:
return "4=error"
print (triangle_type(a,b,c))test_tri.pyimport unittest
import tri
class CalcTest(unittest.TestCase):
#scalene
def triangle_type_scalene(self):
self.assertEqual(tri.triangle_type(2,3,4), "1=scalene")
#isosceles
def triangle_type_isosceles(self):
self.assertEqual(tri.triangle_type(3,3,2), "2=isosceles")
#equilateral
def triangle_type_equilateral(self):
self.assertEqual(tri.triangle_type(3,3,3), "3=equilateral")
#error for negative sides
def triangle_type_negative_sides(self):
self.assertEqual(tri.triangle_type(-1,3,4), "4=error")
self.assertEqual(tri.triangle_type(1,-2,3), "4=error")
self.assertEqual(tri.triangle_type(1,2,-4), "4=error")
#error for mismatching the condition for building triangle
def triangle_type_wrong_condiion(self):
self.assertEqual(tri.triangle_type(10,2,3), "4=error")
self.assertEqual(tri.triangle_type(1,10,2), "4=error")
self.assertEqual(tri.triangle_type(1,2,10), "4=error")
RE: Help me to complete unittest - nilamo - Jan-29-2018
In the unittest module, a test will only be run if the method name literally starts with
test_. So, in your example, the first would need to be renamed to def test_triangle_type_scalene(self):.And then, after you've defined all your tests, make sure you actually run them:
# define test classes
if __name__ == "__main__":
unittest.main()
RE: Help me to complete unittest - FooNtik - Jan-30-2018
Thanks! It work!
RE: Help me to complete unittest - Gribouillis - Jan-30-2018
If you want to go one step further, you can install module
coverage and type in a terminalOutput:$ python3 -m coverage run test_tri.py
.....
----------------------------------------------------------------------
Ran 5 tests in 0.001s
OK
$ python3 -m coverage report -m
Name Stmts Miss Cover Missing
----------------------------------------
test_tri 19 0 100%
tri 10 0 100%
----------------------------------------
TOTAL 29 0 100%