import re
from pathlib import Path


def test_argocd_repo_server_copyutil_symlink_is_idempotent():
    manifest_path = Path(__file__).resolve().parents[1] / "k8s" / "argocd" / "install.yaml"
    text = manifest_path.read_text(encoding="utf-8")

    # Ensure the repo-server initContainer makes the cmp-server symlink idempotently.
    # The repo-server can be recreated while `/var/run/argocd` is persisted (hostPath),
    # so an unconditional `ln -s` will fail with "File exists".
    assert "argocd-cmp-server" in text

    safe_link_re = re.compile(
        r"/bin/ln\s+-sf\s+/var/run/argocd/argocd\s+/var/run/argocd/argocd-cmp-server",
        re.MULTILINE,
    )
    assert safe_link_re.search(text), (
        "Expected ArgoCD repo-server copyutil initContainer to use `ln -sf` when creating "
        "`/var/run/argocd/argocd-cmp-server`."
    )

    unsafe_link_re = re.compile(
        r"/bin/ln\s+-s\s+/var/run/argocd/argocd\s+/var/run/argocd/argocd-cmp-server",
        re.MULTILINE,
    )
    assert not unsafe_link_re.search(text), (
        "Found an unconditional `ln -s` for `argocd-cmp-server` which is not idempotent."
    )