Condition coverage in Testing Fundamentals - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check if the number is positive.

Testing Fundamentals

def is_positive(num):
    if num [1] 0:
        return True
    else:
        return False

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

A>

B!=

C<

D==

Attempts:

3 left

💡 Hint

Common Mistakes

Using '==' instead of '>' will only check if the number equals zero.

Using '<' checks for negative numbers, not positive.

The condition num > 0 correctly checks if the number is positive.

2fill in blank

medium

Complete the code to test if a string is empty.

Testing Fundamentals

def is_empty(s):
    if len(s) [1] 0:
        return True
    else:
        return False

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

A!=

B>

C==

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using '!=' would check if the string is not empty.

Using '>' or '<' would not correctly identify an empty string.

The condition len(s) == 0 checks if the string has no characters, meaning it is empty.

3fill in blank

hard

Fix the error in the condition to check if a number is even.

Testing Fundamentals

def is_even(n):
    if n [1] 2 == 0:
        return True
    else:
        return False

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

A+

B//

C*

D%

Attempts:

3 left

💡 Hint

Common Mistakes

Using '//' performs integer division, not remainder.

Using '*' or '+' are arithmetic operations that don't check evenness.

The modulo operator % returns the remainder. n % 2 == 0 checks if the number is even.

4fill in blank

hard

Fill both blanks to create a condition that checks if a number is between 10 and 20 inclusive.

Testing Fundamentals

def in_range(x):
    if x [1]= 10 and x [2]= 20:
        return True
    else:
        return False

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

A>

B<

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<' instead of '<=' excludes 20 from the range.

Using '>' instead of '>=' excludes 10 from the range.

The condition x >= 10 and x <= 20 checks if x is between 10 and 20 inclusive.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that maps words to their lengths only if length is greater than 3.

Testing Fundamentals

words = ['apple', 'bat', 'carrot', 'dog']
lengths = { [1]: [2] for word in words if [3] > 3 }

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

Aword

Blen(word)

Attempts:

3 left

💡 Hint

Common Mistakes

Using the length as the key instead of the word.

Not using the length in the condition to filter words.

The dictionary comprehension maps each word to its length len(word) only if the length is greater than 3.