Why coverage measures test completeness in PyTest - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the coverage module.

PyTest

import [1]

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

Acoverage

Bunittest

Cpytest

Dsys

Attempts:

3 left

💡 Hint

Common Mistakes

Importing pytest instead of coverage

Using unittest which is for testing but not coverage

The coverage module is used to measure how much of your code is tested.

2fill in blank

medium

Complete the code to start coverage measurement before tests.

PyTest

cov = coverage.Coverage()
cov.[1]()

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

Astop

Bstart

Crun

Dreport

Attempts:

3 left

💡 Hint

Common Mistakes

Calling stop() before tests

Using report() which is for showing results

We call start() to begin measuring coverage before running tests.

3fill in blank

hard

Fix the error in the code to stop coverage after tests.

PyTest

cov.[1]()

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

Aend

Bstart

Cbegin

Dstop

Attempts:

3 left

💡 Hint

Common Mistakes

Calling start() again

Using non-existent methods like begin or end

After tests finish, we call stop() to end coverage measurement.

4fill in blank

hard

Fill both blanks to generate and save the coverage report.

PyTest

cov.[1]()
cov.[2]()

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

Areport

Bsave

Cstart

Dstop

Attempts:

3 left

💡 Hint

Common Mistakes

Calling start or stop instead of report or save

Reversing the order of methods

First, report() prints the coverage summary, then save() saves the data.

5fill in blank

hard

Fill all three blanks to run tests with coverage and print the report.

PyTest

cov = coverage.Coverage()
cov.[1]()
# run tests here
cov.[2]()
cov.[3]()

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

Astart

Bstop

Creport

Dsave

Attempts:

3 left

💡 Hint

Common Mistakes

Using save instead of report at the end

Stopping coverage before tests

We start coverage, run tests, stop coverage, then print the report.