Single responsibility per test in PyTest - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a test that checks if the sum of two numbers is correct.

PyTest

def test_sum():
    result = 2 + 3
    assert result == [1]

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

A7

B5

C6

D4

Attempts:

3 left

💡 Hint

Common Mistakes

Using a wrong expected value in the assertion.

Forgetting to use assert keyword.

The sum of 2 and 3 is 5, so the assertion should check if result equals 5.

2fill in blank

medium

Complete the code to test if a list contains a specific element.

PyTest

def test_contains_element():
    fruits = ['apple', 'banana', 'cherry']
    assert 'banana' [1] fruits

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Ain

Bnot in

C==

D!=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '==' instead of 'in' for membership check.

Using 'not in' which checks the opposite.

To check if 'banana' is in the list fruits, use the 'in' keyword.

3fill in blank

hard

Fix the error in the test function that checks if a string is uppercase.

PyTest

def test_is_uppercase():
    text = 'HELLO'
    assert text.[1]()

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Aisupper

Bistitle

Cislower

Disalpha

Attempts:

3 left

💡 Hint

Common Mistakes

Using islower() which checks for lowercase letters.

Using istitle() which checks for title case.

The method isupper() checks if all letters in the string are uppercase.

4fill in blank

hard

Complete the code to create a test that checks if a list is sorted in ascending order.

PyTest

def test_sorted_list():
    numbers = [1, 2, 3, 4, 5]
    assert numbers == sorted(numbers)

    assert numbers[1] sorted(numbers)

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B!=

C==

D[::-1]

Attempts:

3 left

💡 Hint

Common Mistakes

Adding unnecessary slicing inside sorted().

Using '!=' instead of '==' in the second assertion.

The first assertion checks if numbers equals sorted(numbers) with no extra argument. The second assertion checks if numbers == sorted(numbers).

5fill in blank

hard

Fill both blanks to write a test that checks if a dictionary comprehension creates correct squares for numbers greater than 2.

PyTest

def test_squares_dict():
    numbers = [1, 2, 3, 4]
    squares = {n:: n[1] for n in numbers if n [2] 2}
    assert squares == {3: 9, 4: 16}

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

A**2

B>

C:

D*2

Attempts:

3 left

💡 Hint

Common Mistakes

Using '*' instead of '**' for squaring.

Using '<' instead of '>' in the condition.

Using ':' incorrectly in dictionary comprehension.

The dictionary comprehension uses ':' to separate keys and values, '**2' to square the number, and '>' to filter numbers greater than 2.