feat: schéma résilient URL→cache + suppression DATA_SCHEMA_LOCAL (#78)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tests/test_schema.py

@@ -0,0 +1,77 @@
+import json
+
+import httpx
+import pytest
+
+from src.utils import data as data_mod
+
+VALID = {"fields": [{"name": "uid", "title": "UID"}, {"name": "objet"}]}
+
+
+class FakeResp:
+    def __init__(self, payload, ok=True, bad_json=False):
+        self._payload = payload
+        self._ok = ok
+        self._bad_json = bad_json
+
+    def raise_for_status(self):
+        if not self._ok:
+            raise httpx.HTTPError("boom")
+        return self
+
+    def json(self):
+        if self._bad_json:
+            raise json.JSONDecodeError("bad", "", 0)
+        return self._payload
+
+
+def test_remote_ok_returns_schema_and_writes_cache(tmp_path, monkeypatch):
+    cache = tmp_path / "schema.cache.json"
+    monkeypatch.setenv("DATA_SCHEMA_PATH", "http://x")
+    monkeypatch.setenv("DATA_SCHEMA_CACHE", str(cache))
+    monkeypatch.setattr(data_mod, "get", lambda *a, **k: FakeResp(VALID))
+    result = data_mod.get_data_schema()
+    assert "uid" in result
+    assert json.loads(cache.read_text())["fields"][0]["name"] == "uid"
+
+
+def test_remote_http_error_falls_back_to_cache(tmp_path, monkeypatch):
+    cache = tmp_path / "schema.cache.json"
+    cache.write_text(json.dumps(VALID))
+    monkeypatch.setenv("DATA_SCHEMA_PATH", "http://x")
+    monkeypatch.setenv("DATA_SCHEMA_CACHE", str(cache))
+    monkeypatch.setattr(data_mod, "get", lambda *a, **k: FakeResp(None, ok=False))
+    assert "uid" in data_mod.get_data_schema()
+
+
+def test_remote_malformed_falls_back_to_cache(tmp_path, monkeypatch):
+    cache = tmp_path / "schema.cache.json"
+    cache.write_text(json.dumps(VALID))
+    monkeypatch.setenv("DATA_SCHEMA_PATH", "http://x")
+    monkeypatch.setenv("DATA_SCHEMA_CACHE", str(cache))
+    monkeypatch.setattr(data_mod, "get", lambda *a, **k: FakeResp({"nope": 1}))
+    assert "uid" in data_mod.get_data_schema()
+
+
+def test_no_url_uses_cache(tmp_path, monkeypatch):
+    cache = tmp_path / "schema.cache.json"
+    cache.write_text(json.dumps(VALID))
+    monkeypatch.delenv("DATA_SCHEMA_PATH", raising=False)
+    monkeypatch.setenv("DATA_SCHEMA_CACHE", str(cache))
+    assert "uid" in data_mod.get_data_schema()
+
+
+def test_no_source_raises(tmp_path, monkeypatch):
+    monkeypatch.delenv("DATA_SCHEMA_PATH", raising=False)
+    monkeypatch.setenv("DATA_SCHEMA_CACHE", str(tmp_path / "missing.json"))
+    with pytest.raises(RuntimeError):
+        data_mod.get_data_schema()
+
+
+def test_cache_write_failure_is_non_blocking(tmp_path, monkeypatch):
+    # parent inexistant => l'écriture du cache échoue, mais le schéma est renvoyé
+    cache = tmp_path / "nodir" / "schema.cache.json"
+    monkeypatch.setenv("DATA_SCHEMA_PATH", "http://x")
+    monkeypatch.setenv("DATA_SCHEMA_CACHE", str(cache))
+    monkeypatch.setattr(data_mod, "get", lambda *a, **k: FakeResp(VALID))
+    assert "uid" in data_mod.get_data_schema()