Integration testing in Microservices - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define an integration test that checks communication between two microservices.

Microservices

def test_service_communication():
    response = service_a.call_service_b()
    assert response.status_code == [1]

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

A200

B404

C500

D302

Attempts:

3 left

💡 Hint

Common Mistakes

Using 404 or 500 as success codes.

The HTTP status code 200 means the request was successful, which is expected in a successful integration test.

2fill in blank

medium

Complete the code to mock a dependent microservice during integration testing.

Microservices

with mock.patch('service_b.api_call') as mocked_call:
    mocked_call.return_value = [1]
    result = service_a.call_service_b()
    assert result == 'success'

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

A'error'

B'timeout'

CNone

D'success'

Attempts:

3 left

💡 Hint

Common Mistakes

Returning error or None causing test failures.

Mocking the dependent service to return 'success' simulates a positive response for integration testing.

3fill in blank

hard

Fix the error in the integration test setup to correctly start the test environment.

Microservices

def setup_test_env():
    [1].start()
    service_a.reset()
    service_b.reset()

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

Atest_environment

Btest_env

Cenv

Denvironment

Attempts:

3 left

💡 Hint

Common Mistakes

Using undefined or incorrect variable names.

The variable 'test_env' correctly refers to the test environment object that needs to be started.

4fill in blank

hard

Fill both blanks to create a test that waits for service B to be ready before calling it.

Microservices

def test_service_b_ready():
    while not service_b.[1]():
        time.[2](1)
    response = service_a.call_service_b()
    assert response.status_code == 200

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

Ais_ready

Bsleep

Cwait

Dstart

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'wait' instead of 'sleep', or wrong readiness method.

Use 'is_ready' to check if service B is ready and 'sleep' to pause the loop for 1 second.

5fill in blank

hard

Fill all three blanks to build a dictionary comprehension that maps service names to their health status if status is 'healthy'.

Microservices

health_status = { [1]: status for [2], status in services.items() if status [3] 'healthy' }

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

Aname

Bstatus

C==

D!=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '!=' instead of '==' causing wrong filtering.

The comprehension maps each service name to its status only if the status equals 'healthy'.