Context manager fixtures in PyTest - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a pytest fixture using a context manager.

PyTest

import pytest

@pytest.fixture
 def resource():
     with [1]() as res:
         yield res

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

Aresource_manager

Bopen_resource

Ccontextlib.contextmanager

Dsetup_resource

Attempts:

3 left

💡 Hint

Common Mistakes

Using a function that is not a context manager.

Forgetting to use 'with' statement.

Yielding without a context manager.

The fixture uses a context manager called 'resource_manager' to manage the resource lifecycle.

2fill in blank

medium

Complete the code to use the fixture in a test function.

PyTest

def test_example([1]):
    assert resource.is_active()

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

Acontext

Bsetup

Cresource

Dmanager

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different argument name than the fixture.

Not passing the fixture as a parameter.

The test function receives the fixture named 'resource' as an argument to use it.

3fill in blank

hard

Fix the error in the fixture to properly close the resource after the test.

PyTest

import pytest

@pytest.fixture
 def resource():
     res = open_resource()
     yield res
     [1]

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

Ares.cleanup()

Bres.open()

Cclose(res)

Dres.close()

Attempts:

3 left

💡 Hint

Common Mistakes

Calling open() instead of close().

Using a non-existent cleanup method.

Not closing the resource at all.

After yielding the resource, calling 'res.close()' ensures proper cleanup.

4fill in blank

hard

Fill both blanks to create a fixture that uses contextlib.contextmanager.

PyTest

import pytest
import contextlib

@[1]
def resource():
    @contextlib.[2]
    def manager():
        print('setup')
        yield 'resource'
        print('teardown')
    return manager()

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

Afixture

Bcontextmanager

Ccontextmanager_decorator

Dfixture_decorator

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up decorators.

Using incorrect decorator names.

Not returning the context manager.

The fixture is decorated with '@pytest.fixture' and the inner function with '@contextlib.contextmanager'.

5fill in blank

hard

Fill all three blanks to write a test using the context manager fixture and assert the resource value.

PyTest

def test_resource_value([1]):
    with [2] as res:
        assert res == [3]

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

Aresource

C'resource'

D'value'

Attempts:

3 left

💡 Hint

Common Mistakes

Using a wrong fixture name.

Not using 'with' statement properly.

Asserting incorrect value.

The test uses the fixture 'resource', enters its context with 'with resource as res', and asserts the value is 'resource'.