[Test] test bare C module (generated)

noxfile.py

@@ -35,7 +35,7 @@
 project_dir = Path(__file__).resolve().parent
 
 examples = "minimal-program", "pybind11-project", "nanobind-project", "minimal"
-test_packages = "namespace-project-a", "namespace-project-b"
+test_packages = "namespace-project-a", "namespace-project-b", "bare-c-module"
 
 purity = {"namespace-project-b": True}
 

test-packages/bare-c-module/CMakeLists.txt

@@ -0,0 +1,14 @@
+cmake_minimum_required(VERSION 3.17)
+project(bare-c-module)
+
+# Find the Python development files
+find_package(Python3 REQUIRED COMPONENTS Interpreter Development.Module)
+
+# Add the module to compile
+Python3_add_library(bare_c_module MODULE "add_module.c" WITH_SOABI)
+
+# Install the module
+install(TARGETS bare_c_module
+        EXCLUDE_FROM_ALL
+        COMPONENT python_modules
+        DESTINATION .)

test-packages/bare-c-module/README.md

@@ -0,0 +1,3 @@
+# Bare C module
+
+No subdirectories or `__init__.py` files.

test-packages/bare-c-module/add_module.c

@@ -0,0 +1,51 @@
+/* Example based on https://docs.python.org/3/extending/extending.html */
+
+#define PY_SSIZE_T_CLEAN
+#include <Python.h>
+
+/* This is the addition function we wish to expose to Python. */
+long add(long a, long b) {
+    return a + b;
+}
+
+/* Docstring for our Python module. */
+PyDoc_STRVAR(
+    docstring,
+    "Simple module that adds integers. "
+    "Based loosely on https://docs.python.org/3/extending/extending.html");
+
+/* Wrapper for our 'add' function, using the Python C API to get the function
+   arguments as integers, and to return the result as a Python object. */
+static PyObject *add_module_add(PyObject *self, PyObject *args) {
+    (void)self;
+    long a, b;
+    if (!PyArg_ParseTuple(args, "ll", &a, &b))
+        return NULL;
+    long result = add(a, b);
+    return PyLong_FromLong(result);
+}
+
+/* Define the functions/methods that this module exports. */
+static PyMethodDef AddModuleMethods[] = {
+    {"add", add_module_add, METH_VARARGS, "Add two integers."},
+    {NULL, NULL, 0, NULL}, /* Sentinel */
+};
+
+/* Define the actual module. */
+static struct PyModuleDef add_module = {
+    PyModuleDef_HEAD_INIT,
+    "bare_c_module", /* name of module */
+    docstring,       /* module documentation, may be NULL */
+    -1,              /* size of per-interpreter state of the module, or -1 if
+                        the module keeps state in global variables. */
+    AddModuleMethods,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+};
+
+/* The main entry point that is called by Python when our module is imported. */
+PyMODINIT_FUNC PyInit_bare_c_module(void) {
+    return PyModule_Create(&add_module);
+}

test-packages/bare-c-module/pyproject.toml

@@ -0,0 +1,43 @@
+[project]
+name = "bare_c_module"
+version = "0.2.0a9.dev0"
+description = "Single extension module, without any folders or __init__.py"
+readme = "README.md"
+requires-python = ">=3.7"
+license = { "file" = "LICENSE" }
+authors = [{ "name" = "Pieter P", "email" = "pieter.p.dev@outlook.com" }]
+keywords = ["example", "addition", "subtraction"]
+classifiers = [
+    "Development Status :: 3 - Alpha",
+    "License :: OSI Approved :: MIT License",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.7",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Operating System :: POSIX :: Linux",
+    "Operating System :: Microsoft :: Windows",
+    "Operating System :: MacOS",
+]
+urls = { "Documentation" = "https://tttapa.github.io/" }
+dependencies = []
+
+[build-system]
+requires = ["py-build-cmake~=0.2.0a9.dev0"]
+build-backend = "py_build_cmake.build"
+
+[tool.py-build-cmake.module]
+generated = "module"
+
+[tool.py-build-cmake.sdist]
+include = ["CMakeLists.txt", "add_module.c"]
+
+[tool.py-build-cmake.cmake]
+minimum_version = "3.17"
+build_type = "RelWithDebInfo"
+build_args = ["-j"]
+install_components = ["python_modules"]
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]

test-packages/bare-c-module/tests/test_add_module.py

@@ -0,0 +1,5 @@
+from bare_c_module import add
+
+
+def test_add():
+    assert add(1, 2) == 3

tests/expected_contents/bare-c-module/sdist.txt

@@ -0,0 +1,6 @@
+bare_c_module-{{version}}/CMakeLists.txt
+bare_c_module-{{version}}/LICENSE
+bare_c_module-{{version}}/PKG-INFO
+bare_c_module-{{version}}/README.md
+bare_c_module-{{version}}/pyproject.toml
+bare_c_module-{{version}}/add_module.c

tests/expected_contents/bare-c-module/whl.txt

@@ -0,0 +1,6 @@
+bare_c_module-{{version}}.dist-info/LICENSE
+bare_c_module-{{version}}.dist-info/METADATA
+bare_c_module-{{version}}.dist-info/RECORD
+bare_c_module-{{version}}.dist-info/WHEEL
+bare_c_module-{{version}}.dist-info/entry_points.txt
+bare_c_module{{ext_suffix}}