CODEWITHSUNDEEP
pythonfunctiondictionarytestingassert
Hypnotix999
Hypnotix999

Reputation: 31

Testing Functions for Program

I have a task where I need to create a series of functions that will test a program given to us. The only tests I need to provide are ones that will come out to True

I followed an example and tried to apply it to the specifications that were given but I'm not sure how to tackle the other ones. This is a very new topic for us in Python and I'd like some help because this will help me learn it a lot faster. Any help is really appreciated. Please show the change in code. Thanks in advance!

Upvotes: 0

Views: 44

Answers (1)

Samwise
Samwise

Reputation: 71487

The idea of writing a test is generally to pass a complete set of inputs to the function you're testing and verify that they produce the expected output. For your function this might look something like:

def test_pumpernickel():
    # Test some invalid argument types.
    assert pumpernickel(1, 2, 3) is None
    assert pumpernickel([1, 1.5], [2, 2.5], 3) is None
    assert pumpernickel("foo", "bar", "baz") is None

    # Test some True results.
    assert pumpernickel([1], [2, 3], 4)           # 1+3=4
    assert pumpernickel([2, 3], [4, 5, 6], 8)     # 3+5=8
    assert pumpernickel([0, 0, 0], [1, 1, 1], 1)  # 0+1=1

    # Test some False results.
    assert pumpernickel([1], [2, 3], 5) is False
    assert pumpernickel([], [3], 3) is False
    assert pumpernickel([1, 2, 3], [4, 5, 6], 0) is False

If any of the tests fail, it tells you that there's a bug in the function (or maybe that there's a bug in the test -- you need to double-check your understanding of what the function is supposed to do, and how the test is working, to know which it is)!

Upvotes: 1

Related Questions