1.5 just test

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 cbc98b162671, partway through step-01. 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 cbc98b162671

just setup

The whole tutorial first writes the function power(), and adds pytest, a program that runs tests. It tells pytest where the tests are, and writes eleven unit tests. The command that runs them gets a recipe.

1.5 just test runs the tests

The command uv run pytest is long, and every task of the project gets a recipe in the justfile, so that one short command runs it. The recipe test runs pytest through uv, and passes on to pytest any words that you type after just test.

± See the change to justfile

The recipe test, at the end of the justfile, runs uv run pytest "$@". "$@" stands for the words after just test, so just test tests/unit runs the unit tests alone.

just test -q

just prints the command of the recipe, and pytest prints 11 passed.

What changed

justfile: the recipe test. 4 lines added. The file
- look at uv run pytest "$@"

The diff of justfile

@@ -10,3 +10,7 @@ default:
 # Install Python and every dependency into .venv, exactly as the lockfile says
 setup:
     uv sync --locked
+
+# Run the tests. Extra arguments go to pytest: just test tests/unit
+test *args:
+    uv run pytest "$@"

This change on GitHub

This part ends at the code at step-01. The code after this part