def divide(a,b): #simple example, e.g. 'hello world'
    return a/b

def test_unity():
    assert divide(1,1)==1
    
def test_bad(): #this is just to show a bad test example
    assert divide(1,2)==2

def test_zero_divide(): #this should through an error
    assert divide(1,0)==inf

for func in test_unity, test_bad, test_zero_divide:
    try:
        func()
    except Exception as e:
        print("{} FAILED: {}".format(func.__name__, e))
    else:
        print("{} Passed.".format(func.__name__))

# Each test in the list of tests is a dictionary that contains
# the test name as a key with the value being a tuple, of a  
# tuple of the function arguments, and the expected result of
# the function.
tests = [{'bad test':((1,2),2)},
         {'unity test':((1,1),1)},
         {'Zero divide':((1,0),inf)}]
for Test in tests:
    Name = list(Test.keys())[0]
    arg ,result = Test[Name]
    try:
        assert divide(*arg)==result #the test is implemented here
    except Exception as e:
        print("{} - FAILED: {}".format(Name, e))
    else:
        print("{} - Passed.".format(Name))

from IPython.display import YouTubeVideo
YouTubeVideo('ukm64IUANwE')