Added tests for template generation (#9)

# Description 
- Added basic tests for template generation using `pytest-cookies`.
- Added `cookiecutter` as a dependency and setup `___init.py__` for the
src layout.

---------

Co-authored-by: Arjun Verma <[email protected]>
Co-authored-by: Saransh Chopra <[email protected]>
Co-authored-by: Agriya Khetarpal <[email protected]>

.github/test_on_push.yml

@@ -0,0 +1,55 @@
+name: Test template generation
+
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches:
+    - main
+jobs:
+  style:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.12
+
+      - name: Check style
+        run: |
+          python -m pip install pre-commit
+          pre-commit run -a
+
+  template_test:
+    needs: style
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-13, macos-14, windows-latest]
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
+    name:
+      Template Tests (${{ matrix.os }} / Python ${{ matrix.python-version }})
+    steps:
+      - name: Checkout pybamm-cookiecutter
+        uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        id: setup-python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pip'
+
+      - name: Set up uv
+        uses: yezz123/setup-uv@v4
+        with:
+          uv-venv: ".venv"
+
+      - name: Install nox
+        run: uv pip install nox[uv]
+
+      - name: Test Template Generation
+        run: |
+          nox -s test-generation

noxfile.py

@@ -1,6 +1,7 @@
 import nox
 
 # Options to modify nox behaviour
+nox.options.default_venv_backend = "uv|virtualenv"
 nox.options.reuse_existing_virtualenvs = True
 
 @nox.session(name="docs")
@@ -18,3 +19,10 @@ def build_docs(session: nox.Session) -> None:
             ".",
             f"{envbindir}/../tmp/html",
         )
+
+@nox.session(name="test-generation")
+def run_template_generation(session):
+    """Run the tests for testing template generation"""
+    session.install("setuptools", silent=False)
+    session.install("-e", ".[dev]", silent=False)
+    session.run("pytest", "tests")

pyproject.toml

@@ -30,14 +30,15 @@ classifiers = [
   "Typing :: Typed",
 ]
 dynamic = ["version"]
-dependencies = ["pybamm"]
+dependencies = ["pybamm", "cookiecutter"]
 
 [project.optional-dependencies]
 dev = [
   "pytest >=6",
   "pytest-cov >=3",
-  "nox",
+  "nox[uv]",
   "pre-commit",
+  "pytest-cookies",
 ]
 docs = [
   "sphinx",

src/pybamm_cookiecutter/__init__.py

@@ -5,6 +5,10 @@
 """
 from __future__ import annotations
 
+import pybamm
+
 from ._version import version as __version__
 
-__all__ : tuple[str] = ("__version__",)
+__all__ : list[str] = [
+    "__version__",
+]

tests/test_project_generation.py

@@ -0,0 +1,37 @@
+import pybamm_cookiecutter as m
+import pytest
+from pytest_cookies.plugin import Cookies
+
+def test_version() -> None:
+    assert m.__version__
+
+def test_bake_project(cookies: Cookies):
+    """
+    Testing the template generation with default values
+    """
+    result = cookies.bake()
+    assert result.exit_code == 0, f"Exited with code {result.exit_code}, expected 0"
+    assert result.exception is None, result.exception
+    assert result.project_path.name == "pybamm-example-project"
+    assert result.project_path.is_dir(), f"Project directory {result.project_path} not found"
+
+
+def test_bake_custom_project(cookies: Cookies):
+    """
+    Testing the template generation with custom template and checking if the projects exists in the tmp_path
+    """
+    result = cookies.bake(extra_context={
+        "author_full_name": "pybamm_user",
+        "author_email": "[email protected]",
+        "project_name": "pybamm_cookie",
+        "project_slug": "example",
+        "project_short_description": "This is an example pybamm cookiecutter template",
+        "project_url": "pybamm.org",
+        "project_version": "0.1.0",
+        "documentation_engine": "sphinx(rst)",
+    })
+
+    assert result.exit_code == 0, f"Exited with code {result.exit_code}, expected 0"
+    assert result.exception is None, result.exception
+    assert result.project_path.name == "pybamm_cookie"
+    assert result.project_path.is_dir(), f"Project directory {result.project_path} not found"