neutralize upstream service branding

tests/test_branding.py

@@ -0,0 +1,35 @@
+from __future__ import annotations
+
+from pathlib import Path
+
+
+PROJECT_ROOT = Path(__file__).resolve().parents[1]
+FORBIDDEN_TOKEN = "ever" + "os"
+SKIPPED_PARTS = {
+    ".git",
+    ".pytest_cache",
+    ".venv",
+    "__pycache__",
+    "data",
+}
+
+
+def test_current_project_does_not_expose_upstream_product_name() -> None:
+    matches: list[str] = []
+    for path in PROJECT_ROOT.rglob("*"):
+        relative = path.relative_to(PROJECT_ROOT)
+        if any(part in SKIPPED_PARTS for part in relative.parts):
+            continue
+        if FORBIDDEN_TOKEN in path.name.lower():
+            matches.append(f"filename: {relative}")
+        if not path.is_file():
+            continue
+        try:
+            text = path.read_text(encoding="utf-8")
+        except UnicodeDecodeError:
+            continue
+        for line_number, line in enumerate(text.splitlines(), start=1):
+            if FORBIDDEN_TOKEN in line.lower():
+                matches.append(f"content: {relative}:{line_number}")
+
+    assert matches == []