TestClient basics in FastAPI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the TestClient from FastAPI's testing module.

FastAPI

from fastapi.testclient import [1]

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

ATestClient

BTestAPIClient

CFastClient

DClientTest

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect class names like 'ClientTest' or 'FastClient'.

Trying to import from 'fastapi.client' instead of 'fastapi.testclient'.

The TestClient is imported from fastapi.testclient to test FastAPI apps.

2fill in blank

medium

Complete the code to create a TestClient instance for the FastAPI app named 'app'.

FastAPI

client = [1](app)

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ATestClient

BClient

CFastClient

DAppClient

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'Client(app)' which is not defined.

Trying to instantiate 'FastClient' or 'AppClient' which do not exist.

You create a TestClient instance by passing the FastAPI app object to it.

3fill in blank

hard

Fix the error in the code to send a GET request to '/' using the TestClient instance named 'client'.

FastAPI

response = client.[1]("/")

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Apost

Bsend

Cget

Drequest

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'post' instead of 'get' for a GET request.

Using 'send' which is not a method of TestClient.

Using 'request' without specifying the HTTP method.

To send a GET request, use the get method on the TestClient instance.

4fill in blank

hard

Fill both blanks to check if the response status code is 200 and the response JSON has a key 'message'.

FastAPI

assert response.status_code == [1]
assert 'message' [2] response.json()

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A200

Bin

Cnot in

D404

Attempts:

3 left

💡 Hint

Common Mistakes

Checking for status code 404 which means not found.

Using 'not in' which would fail the assertion if 'message' is present.

Status code 200 means success. The 'in' keyword checks if 'message' is a key in the JSON response.

5fill in blank

hard

Fill all three blanks to send a POST request with JSON data {'name': 'Alice'} and check if the response JSON contains the same name.

FastAPI

response = client.[1]("/users", json=[2])
assert response.json().get('name') == [3]

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

Apost

B{'name': 'Alice'}

C'Alice'

Dget

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'get' instead of 'post' to send data.

Passing JSON data as a string instead of a dictionary.

Comparing the response name to a wrong value.

Use post to send data. The JSON data is a dictionary with name 'Alice'. The assertion checks the response JSON's 'name' equals 'Alice'.