monkeypatch.setenv in PyTest - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set an environment variable using monkeypatch.

PyTest

def test_env_var(monkeypatch):
    monkeypatch.[1]('MY_VAR', '123')
    import os
    assert os.getenv('MY_VAR') == '123'

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

Aset_env

Bsetenv_var

Csetenv

Dset_environment

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect method names like set_env or set_environment.

Trying to set environment variables without monkeypatch.

The correct method to set an environment variable with monkeypatch is setenv.

2fill in blank

medium

Complete the code to check that the environment variable is changed inside the test.

PyTest

def test_change_env(monkeypatch):
    monkeypatch.setenv('PATH', '/tmp')
    import os
    assert os.getenv('PATH') == [1]

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

A'/tmp'

B'/var/log'

C'/home/user'

D'/usr/bin'

Attempts:

3 left

💡 Hint

Common Mistakes

Expecting the original PATH value instead of the patched one.

Using incorrect string quotes.

After monkeypatch.setenv changes PATH to '/tmp', os.getenv('PATH') returns '/tmp'.

3fill in blank

hard

Fix the error in the code to correctly set the environment variable using monkeypatch.

PyTest

def test_fix_env(monkeypatch):
    monkeypatch.[1]('DEBUG', 'True')
    import os
    assert os.getenv('DEBUG') == 'True'

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

Asetenv_var

Bset_env_var

Cset_environment

Dsetenv

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect method names that cause AttributeError.

Forgetting to import monkeypatch fixture.

The correct method is monkeypatch.setenv, not set_env_var or others.

4fill in blank

hard

Fill both blanks to set and then delete an environment variable using monkeypatch.

PyTest

def test_set_and_delete(monkeypatch):
    monkeypatch.[1]('TEMP_VAR', 'value')
    monkeypatch.[2]('TEMP_VAR', raising=False)
    import os
    assert os.getenv('TEMP_VAR') is None

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

Asetenv

Bdelenv

Cunsetenv

Dremoveenv

Attempts:

3 left

💡 Hint

Common Mistakes

Using unsetenv or removeenv which are not monkeypatch methods.

Not passing raising=False to delenv to avoid errors if variable missing.

Use monkeypatch.setenv to set and monkeypatch.delenv to delete environment variables.

5fill in blank

hard

Fill all three blanks to set an environment variable, check its value, and then delete it using monkeypatch.

PyTest

def test_full_env(monkeypatch):
    monkeypatch.[1]('API_KEY', 'abc123')
    import os
    assert os.getenv([2]) == 'abc123'
    monkeypatch.[3]('API_KEY', raising=False)
    assert os.getenv('API_KEY') is None

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

Asetenv

B'API_KEY'

Cdelenv

D'api_key'

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong case for environment variable name.

Forgetting to delete the variable after test.

Use setenv to set, the exact string 'API_KEY' to check, and delenv to delete the variable.