Running with -n auto in PyTest - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to run pytest tests in parallel using the -n auto option.

PyTest

pytest.main(['test_sample.py', '-n', '[1]'])

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

Aauto

Bparallel

Call

Dthreads

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-n all' which is not a valid option.

Using '-n threads' which is incorrect syntax.

The '-n auto' option tells pytest-xdist to automatically detect the number of CPUs and run tests in parallel accordingly.

2fill in blank

medium

Complete the command to run pytest with parallel execution automatically detecting CPU cores.

PyTest

pytest [1] test_module.py

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

A-m auto

B-n 4

C-x

D-n auto

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-n 4' which fixes the number of workers instead of auto.

Using '-x' which stops after first failure.

The '-n auto' option runs tests in parallel using all available CPU cores automatically.

3fill in blank

hard

Fix the error in the pytest command to enable automatic parallel test execution.

PyTest

pytest -n [1] test_parallel.py

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

Acpu

Bauto

Cmax

Dall

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'all' which is not recognized by pytest-xdist.

Using 'max' or 'cpu' which are invalid options.

The correct option is 'auto' to let pytest-xdist detect CPU cores automatically. Other options are invalid.

4fill in blank

hard

Fill both blanks to run pytest in parallel with automatic CPU detection and verbose output.

PyTest

pytest [1] [2] tests/

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

A-n auto

B-v

C-q

D--maxfail=1

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-q' which reduces output instead of verbose.

Using '--maxfail=1' which stops tests early, not related to parallelism.

Use '-n auto' for parallel execution and '-v' for verbose output.

5fill in blank

hard

Fill all three blanks to run pytest with automatic parallelism, verbose output, and stop after first failure.

PyTest

pytest [1] [2] [3] my_tests/

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

A-n auto

B-v

C-x

D--maxfail=2

Attempts:

3 left

💡 Hint

Common Mistakes

Using '--maxfail=2' which stops after two failures, not first.

Omitting '-v' which reduces output detail.

Use '-n auto' for parallel runs, '-v' for verbose, and '-x' to stop after first failure.