test: representative expected_na scenario (functional covered, backup declared-N/A)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

tests/unit/test_results.py

@@ -322,6 +322,8 @@ def test_cap_intent_blank_when_not_capped_on_na():
 
 
 def test_build_results_threads_expected_na(tmp_path):
+    # Mirrors custom-html-tiny post-change: install + a passing functional (custom) test, but no
+    # backup surface (backup_restore declared intentionally N/A).
     recs = [
         {
             "tier": "install",
@@ -329,7 +331,14 @@ def test_build_results_threads_expected_na(tmp_path):
             "file": "g/test_install.py",
             "rc": 0,
             "junit": _write(tmp_path, "i.xml", JUNIT_PASS),
-        }
+        },
+        {
+            "tier": "custom",
+            "source": "cc-ci",
+            "file": "c/test_serves_content.py",
+            "rc": 0,
+            "junit": _write(tmp_path, "c.xml", JUNIT_PASS),
+        },
     ]
     data = R.build_results(
         recipe="custom-html-tiny",
@@ -337,7 +346,7 @@ def test_build_results_threads_expected_na(tmp_path):
         pr="0",
         ref=None,
         records=recs,
-        results=_results(backup="skip", restore="skip", custom="skip"),
+        results=_results(backup="skip", restore="skip"),  # custom=pass (default) → functional pass
         backup_capable=False,  # no backupbot label → backup_restore N/A
         declared=[],
         deps_ready=True,
@@ -347,12 +356,14 @@ def test_build_results_threads_expected_na(tmp_path):
         finished_ts=0.0,
         expected_na={"backup_restore": "stateless static file server"},
     )
-    # N/A still caps at L2 (never inflates), but now annotated intentional rather than flagged.
+    # backup_restore N/A still caps at L2 (never inflates) — even though functional passes above it,
+    # the gap caps the climb — but the cap is now annotated intentional rather than flagged.
     assert data["level"] == 2
     assert "L3" in data["level_cap_reason"]
     assert data["level_cap_intent"] == "intentional · stateless static file server"
     assert data["na"]["rungs"]["backup_restore"]["intent"] == "declared"
-    assert data["na"]["gaps"] == []
+    assert data["rungs"]["functional"] == "pass"
+    assert data["na"]["gaps"] == []  # functional now covered; backup_restore declared → no gaps
 
 
 def test_write_results_roundtrip(tmp_path):