Identifying performance bottlenecks in Testing Fundamentals - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start measuring the time before the function runs.

Testing Fundamentals

start_time = [1]()

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Alen

Bprint

Ctime.time

Dinput

Attempts:

3 left

💡 Hint

Common Mistakes

Using print() instead of time.time()

Using len() which counts length, not time

We use time.time() to get the current time in seconds before running the code to measure elapsed time.

2fill in blank

medium

Complete the code to calculate the elapsed time after the function runs.

Testing Fundamentals

elapsed = [1]() - start_time

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Aprint

Btime.time

Clen

Dinput

Attempts:

3 left

💡 Hint

Common Mistakes

Using print() instead of time.time()

Not subtracting start_time

We call time.time() again to get the current time after the function finishes, then subtract the start time to get elapsed time.

3fill in blank

hard

Fix the error in the code to correctly measure the time taken by the function call.

Testing Fundamentals

def test_function():
    [1]('Starting test')
    # function code here
    print('Test done')

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

Aprint

Binput

Ctime.time

Dtime.sleep

Attempts:

3 left

💡 Hint

Common Mistakes

Using time.time() as a function call without parentheses

Using time.sleep() which pauses execution

The code intends to print a message. Using print is correct here. Using time.time or time.sleep would cause errors or wrong behavior.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps each word to its length if the length is greater than 3.

Testing Fundamentals

{word: [1] for word in words if [2] > 3}

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Alen(word)

Bword

Dword.length

Attempts:

3 left

💡 Hint

Common Mistakes

Using word.length which is not valid in Python

Using word instead of len(word) for the value

The dictionary comprehension maps each word to its length using len(word). The condition checks if len(word) > 3.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that maps uppercase words to their lengths if length is greater than 4.

Testing Fundamentals

{ [1]: [2] for word in words if [3] > 4 }

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Aword.upper()

Blen(word)

Dword

Attempts:

3 left

💡 Hint

Common Mistakes

Using word instead of word.upper() for the key

Using word.length which is invalid in Python

The comprehension maps the uppercase version of each word to its length. The condition checks if the length is greater than 4.