# Testing functions


Once you have created your  definitions you want to put them in a main class and have something to display if the functions passed. For example: 


```
 def test_sum():
    assert sum([1, 2, 3]) == 6, "Should be 6"

def test_sum_tuple():
    assert sum((1, 2, 2)) == 6, "Should be 6"

if __name__ == "__main__":
    test_sum()
    test_sum_tuple()
    print("Everything passed")
```


This [site](https://realpython.com/python-testing/) has several differnt testing methods that can be used with python. Unittest, nose, and [pytest](https://docs.pytest.org/en/latest/) are the most commonly used. 

How to execute pytest: 
https://docs.pytest.org/en/latest/

## testing paradigms in python 
- tox 
- pytest 
-