Grouping related tests in PyTest - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of grouping related tests in pytest?

Grouping related tests helps organize tests logically, making them easier to read, maintain, and run selectively.

beginner

How can you group related tests in pytest using functions?

You can group related tests by placing them in the same Python file or by using classes without __init__ methods to logically group test functions.

intermediate

What is a pytest test class and how does it help in grouping tests?

A pytest test class is a class whose name starts with 'Test'. It groups related test functions inside it, helping organize tests and share setup code.

intermediate

How do pytest markers help in grouping tests?

Markers label tests with custom tags. You can run tests with specific markers to group and execute related tests selectively.

beginner

Give an example of grouping tests using a pytest class.

Example:
class TestMathOperations:
    def test_add(self):
        assert 1 + 1 == 2
    def test_subtract(self):
        assert 2 - 1 == 1
This groups add and subtract tests logically.

Which of the following is a valid way to group related tests in pytest?

A Using test classes with names starting with 'Test'

B Writing all tests in one long function

C Using global variables to separate tests

D Running tests in random order

Test classes starting with 'Test' group related test functions logically in pytest.

What is the benefit of using pytest markers for grouping tests?

A They disable tests permanently

B They speed up test execution automatically

C They convert tests into functions

D They allow running only selected groups of tests

Markers tag tests so you can run only those with a specific marker, grouping tests for selective execution.

How do you name a pytest test class to ensure pytest recognizes it?

A Start the class name with 'Test'

B End the class name with 'Test'

C Include 'test' anywhere in the class name

D Use uppercase letters only

Pytest recognizes test classes whose names start with 'Test'.

Which statement about grouping tests in pytest is TRUE?

A Grouping tests slows down test execution

B Grouping tests helps maintain and run tests more easily

C Grouping tests is not supported in pytest

D Grouping tests requires special plugins only

Grouping tests improves organization and selective running, making maintenance easier.

What is the recommended way to share setup code among grouped tests in pytest?

A Use global variables outside tests

B Copy-paste setup code in every test

C Use setup methods inside test classes or fixtures

D Run tests in a specific order

Setup methods or fixtures allow sharing setup code cleanly among grouped tests.

Explain how you can group related tests in pytest and why it is useful.

Think about classes, markers, and file organization.

Describe how pytest markers work for grouping tests and how to run tests with a specific marker.

Focus on marking and running tests selectively.