Function test_new_version_uses_subdirectory

tests/test_subdirectory.py:204–274

(
    tmp_path_factory: pytest.TempPathFactory,
    conflict: Literal["rej", "inline"],
    readme: str,
    expect_reject: bool,
)

    ],
)
def test_new_version_uses_subdirectory(
    tmp_path_factory: pytest.TempPathFactory,
    conflict: Literal["rej", "inline"],
    readme: str,
    expect_reject: bool,
) -> None:
    # Template in v1 doesn't have a _subdirectory;
    # in v2 it moves all things into a subdir and adds that key to copier.yml.
    # Some files change. Downstream project has evolved too. Does that work as expected?
    src, dst = map(tmp_path_factory.mktemp, ("src", "dst"))

    # First, create the template with an initial README
    build_file_tree(
        {
            (src / "README.md"): "upstream version 1",
            (src / "{{_copier_conf.answers_file}}.jinja"): (
                "{{_copier_answers|to_nice_yaml}}"
            ),
        }
    )
    with local.cwd(src):
        git_init("hello template")
        git("tag", "v1")

    # Generate the project a first time, assert the README exists
    copier.run_copy(str(src), dst, defaults=True, overwrite=True)
    assert (dst / "README.md").exists()
    assert load_answersfile_data(dst).get("_commit") == "v1"

    # Start versioning the generated project
    with local.cwd(dst):
        git_init("hello project")

        # After first commit, change the README, commit again
        Path("README.md").write_text("downstream version 1")
        git("commit", "-am", "updated readme")

    # Now change the template
    with local.cwd(src):
        # Update the README
        Path("README.md").write_text("upstream version 2")

        # Create a subdirectory, move files into it
        subdir = Path("subdir")
        subdir.mkdir()
        Path("README.md").rename(subdir / "README.md")
        Path("{{_copier_conf.answers_file}}.jinja").rename(
            subdir / "{{_copier_conf.answers_file}}.jinja"
        )

        # Add the subdirectory option to copier.yml
        Path("copier.yml").write_text(f"_subdirectory: {subdir}")

        # Commit the changes
        git("add", ".", "-A")
        git("commit", "-m", "use a subdirectory now")
        git("tag", "v2")