Data validation rules in Testing Fundamentals - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check if the input is not empty.

Testing Fundamentals

if [1]:

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

Ainput_value

Bnot input_value

Cinput_value == ''

Dinput_value is None

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'not input_value' which checks for empty instead of non-empty.

Comparing input_value to empty string explicitly.

The condition should check if input_value is truthy, meaning it is not empty or None.

2fill in blank

medium

Complete the code to validate that age is a positive integer.

Testing Fundamentals

if isinstance(age, int) and age [1] 0:

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

A==

B<=

C>

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<=' which allows zero or negative numbers.

Using '==' which only allows age exactly zero.

The age should be greater than 0 to be a valid positive integer.

3fill in blank

hard

Fix the error in the validation that checks if email contains '@'.

Testing Fundamentals

if [1] email:

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

Aemail.index

B'@' in

Cemail.contains

Demail.find

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'email.contains' which is not a valid string method in Python.

Using 'email.find' incorrectly as a function call.

To check if '@' is in the email string, use the in keyword.

4fill in blank

hard

Fill both blanks to validate a username: it must be a string and at least 3 characters long.

Testing Fundamentals

if isinstance(username, [1]) and len(username) [2] 3:

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

Astr

B>=

Cint

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Checking for int type instead of str.

Using '<' which checks for less than 3 characters.

The username must be a string and its length should be greater than or equal to 3.

5fill in blank

hard

Fill all three blanks to create a dictionary of valid scores greater than 50.

Testing Fundamentals

valid_scores = [1]: [2] for [1], [2] in scores if [2] > 50}

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

Aplayer

Bscore

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up keys and values in the dictionary comprehension.

Using the wrong variable names for filtering.

The dictionary comprehension uses 'player' as key and 'score' as value. The filter checks if score is greater than 50.