3.2 More tools for the tests

Read the tutorial. Build it yourself is the other way to read this part.

This walk goes through rahuldave/cheesecracker on GitHub. This part starts from the code at e576e7bb9e55, partway through step-03. The code before this part

To look at this code on your machine, run these commands. The first one makes a clone, if this folder has none:

[ -d cheesecracker ] || git clone https://github.com/rahuldave/cheesecracker
cd cheesecracker
git fetch --quiet --tags --force origin
git switch --detach e576e7bb9e55

just setup

The whole tutorial then writes the app, the recipes just serve and just stop, and an endpoint that computes a distance. The integration tests need two more packages, and they go into the group test.

3.2 httpx2 and pytest-asyncio, for tests of the app

FastAPI's TestClient sends requests to the app in the same process, with no server. It needs httpx2, a library that sends HTTP requests. One test of the app is a coroutine, an async function. pytest cannot run an async function by itself, so pytest-asyncio runs it.

This change came from running uv add --group test httpx2 pytest-asyncio.

The command adds both packages to the group test, and writes their versions into uv.lock.

just test -q

pytest still prints 11 passed. The new packages change no test.

What changed

pyproject.toml: httpx2 and pytest-asyncio, in the group test. 2 lines added. It comes from uv add --group test httpx2 pytest-asyncio. The file
- look at "httpx2>=2.13.1",
uv.lock: the exact versions of httpx2, pytest-asyncio, and the packages that they need. 68 lines added, 1 removed. It comes from uv add --group test httpx2 pytest-asyncio. The file

The diff of pyproject.toml

@@ -17,7 +17,9 @@ default-groups = "all"
 
 [dependency-groups]
 test = [
+    "httpx2>=2.13.1",
     "pytest>=9.1.1",
+    "pytest-asyncio>=1.4.0",
 ]
 
 [tool.pytest.ini_options]

This change on GitHub

This part ends at the code at 3c75ffb1a089, partway through step-03. The code after this part