Branch coverage in Testing Fundamentals - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to illustrate the branches in an if-else statement for branch coverage.

Testing Fundamentals

if condition:
    execute_true_branch()
else:
    execute_[1]_branch()

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

Afalse

Btrue

Cpath

Ddecision

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting to test the else branch

Assuming only the true branch matters

The else branch must be executed to cover all branches.

2fill in blank

medium

Complete the code to ensure branch coverage for a function with two conditions.

Testing Fundamentals

def check_values(a, b):
    if a > 0:
        return 'Positive'
    elif b [1] 0:
        return 'Non-positive b'
    else:
        return 'Other'

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

A>=

B!=

C<=

D==

Attempts:

3 left

💡 Hint

Common Mistakes

Using '==' which only checks for zero

Using '!=' which excludes zero

The elif branch covers cases where b is less than or equal to zero.

3fill in blank

hard

Fix the error in the branch coverage test condition.

Testing Fundamentals

if score [1] 50:
    print('Pass')
else:
    print('Fail')

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A<

B>=

C=>

D==

Attempts:

3 left

💡 Hint

Common Mistakes

Using '=>' which is a syntax error

Using '==' which only checks equality

The correct operator to check if score is at least 50 is '>='.

4fill in blank

hard

Fill both blanks to create a branch coverage test for a nested condition.

Testing Fundamentals

if temperature [1] 0:
    if weather [2] 'snowy':
        action = 'Stay inside'
    else:
        action = 'Go outside'

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

A>

B==

C!=

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using '>' instead of '<' for temperature

Using '!=' instead of '==' for weather

The outer if checks if temperature is less than 0, and the inner if checks if weather equals 'snowy'.

5fill in blank

hard

Fill all three blanks to complete a branch coverage test with a dictionary comprehension.

Testing Fundamentals

results = {test[1]: outcome for test, outcome in tests.items() if outcome [2] 'fail' and 'critical' [3] test}

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A.upper()

B==

Cin

D.lower()

Attempts:

3 left

💡 Hint

Common Mistakes

Using .upper() instead of .lower()

Using '!=' instead of '==' for outcome

Using '==' instead of 'in' for test name check

We convert test names to lowercase, check if outcome equals 'fail', and check if 'critical' is in the test name.