Testing and quality assurance in Intro to Computing - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print a message when a test passes.

Intro to Computing

if test_result == [1]:
    print("Test passed!")

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

ANone

BFalse

CTrue

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Using False instead of True

Using 0 or None which mean failure or no result

The test_result should be True to indicate the test passed.

2fill in blank

medium

Complete the code to raise an error if a test fails.

Intro to Computing

if not test_passed:
    raise [1]("Test failed!")

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

AIndexError

BAssertionError

CTypeError

DValueError

Attempts:

3 left

💡 Hint

Common Mistakes

Using unrelated error types like TypeError or IndexError

Not raising any error on failure

AssertionError is commonly used to indicate a failed test assertion.

3fill in blank

hard

Fix the error in the test function to correctly check equality.

Intro to Computing

def test_sum():
    result = sum([1, 2, 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 != which means not equal

Using > or < which check inequality

The test should assert that the result is equal to 6 using ==.

4fill in blank

hard

Fill both blanks to create a test that checks if a number is positive.

Intro to Computing

def test_positive(num):
    assert num [1] 0 and num [2] 0

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

A>

B<

C!=

D==

Attempts:

3 left

💡 Hint

Common Mistakes

Using < instead of >

Using == instead of !=

The test checks if num is greater than 0 and not equal to 0.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that filters passing scores.

Intro to Computing

passing_scores = {student: score for student, score in scores.items() if score [1] [2] and student [3] ''}

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

A>=

B60

C!=

D==

Attempts:

3 left

💡 Hint

Common Mistakes

Using < instead of >=

Using == instead of !=

Using wrong passing score value

This comprehension keeps students with scores greater or equal to 60 and non-empty names.