First PyTest test - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to write a simple PyTest test function that checks if 2 + 2 equals 4.

PyTest

def test_addition():
    assert 2 + 2 == [1]

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

A5

B4

C3

D6

Attempts:

3 left

💡 Hint

Common Mistakes

Using a wrong number like 5 or 3 causes the test to fail.

Forgetting to use assert keyword.

The test checks if 2 + 2 equals 4. Using 4 makes the assertion true, so the test passes.

2fill in blank

medium

Complete the code to write a PyTest test function that checks if the string 'hello' starts with 'h'.

PyTest

def test_startswith():
    assert 'hello'.[1]('h')

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

Acontains

Bendswith

Cstartswith

Dfind

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'endswith' checks the end, not the start.

Using 'contains' is not a string method in Python.

The startswith method checks if the string begins with the given character.

3fill in blank

hard

Fix the error in the PyTest test function that checks if the length of list [1, 2, 3] is 3.

PyTest

def test_list_length():
    assert len([1, 2, 3]) == [1]

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

A3

B4

C2

D5

Attempts:

3 left

💡 Hint

Common Mistakes

Using a wrong number like 2 or 4 causes the test to fail.

Forgetting to use len() function.

The list has three elements, so its length is 3. Using 3 makes the assertion true.

4fill in blank

hard

Fill both blanks to write a PyTest test that checks if the last character of 'world' is 'd'.

PyTest

def test_last_char():
    assert 'world'[[1]] == [2]

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

A-1

B0

C'd'

D'w'

Attempts:

3 left

💡 Hint

Common Mistakes

Using index 0 gets the first character, not the last.

Using wrong character in comparison.

Using index -1 gets the last character of the string. It should equal 'd' for the test to pass.

5fill in blank

hard

Fill all three blanks to write a PyTest test that checks if the dictionary {'a': 1, 'b': 2} has key 'a' with value 1.

PyTest

def test_dict_key_value():
    data = [1]
    assert data[[2]] == [3]

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

A{'a': 1, 'b': 2}

B'a'

C1

D{'x': 10, 'y': 20}

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong dictionary or key causes test failure.

Comparing to wrong value.

The dictionary has keys 'a' and 'b'. We check if data['a'] equals 1 for the test to pass.