Given-When-Then pattern in PyTest - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to mark the 'Given' step in a pytest test function.

PyTest

def test_addition():
    # [1]: Setup numbers
    a = 2
    b = 3
    result = a + b
    assert result == 5

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

AAssert

BWhen

CThen

DGiven

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing 'Given' with 'When' or 'Then' steps.

The 'Given' step sets up the initial context or data for the test.

2fill in blank

medium

Complete the code to mark the 'When' step where the action happens.

PyTest

def test_subtraction():
    a = 5
    b = 3
    # [1]: Perform subtraction
    result = a - b
    assert result == 2

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

AWhen

BSetup

CThen

DGiven

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'Given' or 'Then' instead of 'When' for the action step.

The 'When' step describes the action or event being tested.

3fill in blank

hard

Fix the error in the 'Then' step comment describing the expected outcome.

PyTest

def test_multiplication():
    a = 4
    b = 3
    result = a * b
    # [1]: Check if result equals 12
    assert result == 12

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

AGiven

BWhen

CThen

DCheck

Attempts:

3 left

💡 Hint

Common Mistakes

Labeling the 'Then' step as 'When' or 'Given'.

The 'Then' step verifies the expected result or outcome of the test.

4fill in blank

hard

Fill both blanks to complete the Given-When-Then comments in the test.

PyTest

def test_division():
    # [1]: Setup numbers
    numerator = 10
    denominator = 2
    # [2]: Perform division
    result = numerator / denominator
    assert result == 5

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

AGiven

BWhen

CThen

DSetup

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping 'Given' and 'When' labels.

'Given' sets up the data, 'When' performs the action.

5fill in blank

hard

Fill all three blanks to complete the Given-When-Then pattern in the test function.

PyTest

def test_string_upper():
    # [1]: Setup input string
    input_str = "hello"
    # [2]: Convert string to uppercase
    result = input_str.upper()
    # [3]: Verify the result is uppercase
    assert result == "HELLO"

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

AGiven

BWhen

CThen

DAssert

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up the order of Given, When, Then.

'Given' sets up data, 'When' performs action, 'Then' checks result.