test_hatch_build.py

from os import listdir
from pathlib import Path
from shutil import rmtree
from subprocess import check_call
from sys import modules, path, platform


class TestHatchBuild:
    def test_hatch_build(self):
        project = "test_project_hatch_build"

        rmtree(f"hatch_cpp/tests/{project}/project/extension.so", ignore_errors=True)
        rmtree(f"hatch_cpp/tests/{project}/project/extension.pyd", ignore_errors=True)
        modules.pop("project", None)
        modules.pop("project.extension", None)

        # compile
        check_call(
            [
                "hatch-build",
                "--hooks-only",
                "--",
                "--libraries.0.name=project/extension",
                "--libraries.0.sources=cpp/project/basic.cpp",
                "--libraries.0.include-dirs=cpp",
                "--libraries.0.binding=nanobind",
            ],
            cwd=f"hatch_cpp/tests/{project}",
        )

        # assert built

        if project == "test_project_limited_api" and platform != "win32":
            assert "extension.abi3.so" in listdir(f"hatch_cpp/tests/{project}/project")
        else:
            if platform == "win32":
                assert "extension.pyd" in listdir(f"hatch_cpp/tests/{project}/project")
            else:
                assert "extension.so" in listdir(f"hatch_cpp/tests/{project}/project")

        # import
        here = Path(__file__).parent / project
        path.insert(0, str(here))
        import project.extension

        assert project.extension.hello() == "A string"