pytest-xdist for parallel execution - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the command to load the pytest-xdist plugin for parallel test execution.

PyTest

pytest -p [1]

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

Aparallel

Bpytest_xdist

Cxdist

Dmultiprocessing

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'parallel' or 'multiprocessing' which are not pytest-xdist plugin names.

Using 'pytest_xdist' which is not the registered plugin specifier.

The pytest-xdist plugin is loaded explicitly using 'pytest -p xdist'. Normally auto-loaded after installation, but this ensures parallel execution features like -n are available.

2fill in blank

medium

Complete the command to run tests in parallel using 4 CPUs with pytest-xdist.

PyTest

pytest -n [1]

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

A2

B1

C8

D4

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-n 1' which runs tests sequentially.

Using numbers higher than available CPUs causing slowdowns.

The '-n' option followed by a number tells pytest-xdist how many CPUs to use. Using 4 runs tests in parallel on 4 CPUs.

3fill in blank

hard

Fix the error in the pytest command to enable parallel execution with pytest-xdist.

PyTest

pytest --dist=loadscope [1] 3

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

A-n

B-x

C--maxfail

D-k

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-x' which stops after first failure.

Using '--maxfail' which limits failures but does not enable parallelism.

The '-n' option specifies the number of parallel workers. The command needs '-n 3' to run tests in parallel with 3 workers.

4fill in blank

hard

Fill both blanks to create a pytest command that runs tests in parallel and stops after 2 failures.

PyTest

pytest [1] 5 [2] 2

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

A-n

B-x

C--maxfail

D-k

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing '-x' with '--maxfail'.

Using '-k' which filters tests but does not control failures.

The '-n 5' runs tests on 5 parallel workers. The '--maxfail 2' stops the test run after 2 failures.

5fill in blank

hard

Fill all three blanks to write a pytest command that runs tests in parallel on 3 CPUs, stops after 1 failure, and runs only tests matching 'login'.

PyTest

pytest [1] 3 [2] 1 [3] login

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

A-n

B--maxfail

C-k

D-x

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up '-x' and '--maxfail'.

Forgetting to use '-k' for test name filtering.

'-n 3' runs tests on 3 CPUs, '--maxfail 1' stops after 1 failure, and '-k login' runs tests matching 'login'.