feat: Added Partners, Backgrounds, and related variation selections to commander building.

code/tests/test_web_background_fallback.py

@@ -0,0 +1,27 @@
+"""Tests for background option fallback logic in the web build route."""
+
+from __future__ import annotations
+
+from code.web import app  # noqa: F401  # Ensure app is initialized prior to build import
+from code.web.routes import build
+from code.web.services.commander_catalog_loader import find_commander_record
+
+
+def test_build_background_options_falls_back_to_commander_catalog(monkeypatch):
+    """When the background CSV is unavailable, commander catalog data is used."""
+
+    def _raise_missing(*_args, **_kwargs):
+        raise FileNotFoundError("missing background csv")
+
+    monkeypatch.setattr(build, "load_background_cards", _raise_missing)
+
+    options = build._build_background_options()
+
+    assert options, "Expected fallback to provide background options"
+    names = [opt["name"] for opt in options]
+    assert len(names) == len(set(name.casefold() for name in names)), "Background options should be unique"
+
+    for name in names:
+        record = find_commander_record(name)
+        assert record is not None, f"Commander catalog missing background record for {name}"
+        assert record.is_background, f"Expected {name} to be marked as a Background"