AI Implementation feature(1082): Project Scaffold and Docker Packaging (#1)

tests/test_entrypoint_validation.py

@@ -0,0 +1,88 @@
+from __future__ import annotations
+
+import re
+import shutil
+import subprocess
+from pathlib import Path
+
+import pytest
+
+REPO_ROOT = Path(__file__).resolve().parents[1]
+ENTRYPOINT = REPO_ROOT / "entrypoint.sh"
+
+
+def _has_bash() -> bool:
+    return shutil.which("bash") is not None
+
+
+def _minimal_path() -> str:
+    parts = ["/usr/bin", "/bin", "/usr/sbin", "/sbin"]
+    for p in parts:
+        if Path(p).exists():
+            return ":".join(parts)
+    return os.environ.get("PATH", "")
+
+
+def _clean_env() -> dict[str, str]:
+    env = {
+        "PATH": _minimal_path(),
+        "DEBIAN_FRONTEND": "noninteractive",
+        "HOME": "/tmp",
+        "LANG": "C.UTF-8",
+    }
+    return env
+
+
+@pytest.mark.skipif(not _has_bash(), reason="bash not available")
+def test_entrypoint_rejects_bad_run_at(tmp_path: Path, monkeypatch) -> None:
+    """The entrypoint must exit non-zero with a clear message on a bad RUN_AT."""
+    env = _clean_env()
+    env["MASTODON_BASE_URL"] = "https://mastodon.example"
+    env["MASTODON_ACCESS_TOKEN"] = "x"
+    env["SITE_URL"] = "https://blog.example.com"
+    env["HASHTAGS"] = "#throwback"
+    env["RUN_AT"] = "25:99"
+    env["TZ"] = "Europe/Berlin"
+
+    proc = subprocess.run(
+        ["/bin/bash", str(ENTRYPOINT)],
+        capture_output=True,
+        text=True,
+        env=env,
+        timeout=10,
+        check=False,
+    )
+    assert proc.returncode != 0
+    assert "RUN_AT" in (proc.stdout + proc.stderr)
+
+
+@pytest.mark.skipif(not _has_bash(), reason="bash not available")
+def test_entrypoint_fails_fast_when_token_missing(tmp_path: Path, monkeypatch) -> None:
+    """A missing required var must abort before cron is started."""
+    env = _clean_env()
+    env["MASTODON_BASE_URL"] = "https://mastodon.example"
+    env["SITE_URL"] = "https://blog.example.com"
+    env["HASHTAGS"] = "#throwback"
+    env["RUN_AT"] = "09:00"
+    env["TZ"] = "Europe/Berlin"
+    env.pop("MASTODON_ACCESS_TOKEN", None)
+
+    proc = subprocess.run(
+        ["/bin/bash", str(ENTRYPOINT)],
+        capture_output=True,
+        text=True,
+        env=env,
+        timeout=10,
+        check=False,
+    )
+    assert proc.returncode != 0
+    combined = (proc.stdout + proc.stderr).lower()
+    assert "missing" in combined
+    assert "mastodon_access_token" in combined.lower()
+
+
+def test_entrypoint_references_cron_in_foreground() -> None:
+    text = ENTRYPOINT.read_text()
+    assert re.search(r"exec\s+cron\s+-f", text), "entrypoint must exec cron in the foreground"
+    cron = (REPO_ROOT / "crontab" / "tenbackward.cron").read_text()
+    assert "SHELL=/bin/bash" in cron