Test functions in PyTest - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a test function using pytest.

PyTest

def [1]():
    assert 1 + 1 == 2

Drag options to blanks, or click blank then click option'

Acheck_add

Btest_addition

Caddition_test

Dverify_sum

Attempts:

3 left

💡 Hint

Common Mistakes

Naming the function without the 'test_' prefix.

Using names that pytest won't recognize as tests.

Pytest requires test functions to start with test_. So test_addition is correct.

2fill in blank

medium

Complete the code to assert that a function returns the expected value.

PyTest

def test_double():
    result = double(3)
    assert result [1] 6

Drag options to blanks, or click blank then click option'

A==

B!=

C<

D>

Attempts:

3 left

💡 Hint

Common Mistakes

Using != instead of ==.

Using comparison operators like < or > which do not check equality.

The assertion checks if result equals 6, so == is correct.

3fill in blank

hard

Fix the error in the test function name so pytest can discover it.

PyTest

def [1]():
    assert sum([1, 2, 3]) == 6

Drag options to blanks, or click blank then click option'

Atest_sum

Bverify_sum

Csum_test

Dcheck_sum

Attempts:

3 left

💡 Hint

Common Mistakes

Using function names without the 'test_' prefix.

Using names that look like tests but don't start with 'test_'.

Pytest discovers tests only if function names start with test_. test_sum is correct.

4fill in blank

hard

Fill both blanks to complete a test function that checks if a list contains a value.

PyTest

def test_contains():
    items = [1, 2, 3]
    assert [1] in [2]

Drag options to blanks, or click blank then click option'

A2

Bitems

C3

Dlist

Attempts:

3 left

💡 Hint

Common Mistakes

Using a value not in the list.

Using an undefined variable for the list.

The test checks if 2 is in the list items.

5fill in blank

hard

Fill all three blanks to create a test function that checks if a string starts with a prefix.

PyTest

def test_startswith():
    text = "hello world"
    prefix = "he"
    assert [1].[2]([3])

Drag options to blanks, or click blank then click option'

Atext

Bstartswith

Cprefix

Dendswith

Attempts:

3 left

💡 Hint

Common Mistakes

Using endswith instead of startswith.

Swapping the variable names.

The test asserts that the string text starts with prefix using the startswith method.