diff --git a/tests/harness/test_console.py b/tests/harness/test_console.py
index 5712a62c..fb7c1c07 100644
--- a/tests/harness/test_console.py
+++ b/tests/harness/test_console.py
@@ -70,7 +70,7 @@ def test_run_one_returns_a_plan_and_prints_the_table(
     assert len(plan.measures) >= 1
     printed: str = capsys.readouterr().out
     assert "Plan  SAP" in printed
-    assert "cavity_wall_insulation" in printed
+    assert "air_source_heat_pump" in printed
 
 
 def test_run_modelling_inspects_a_plan_without_baseline_or_lodged_performance() -> None:
diff --git a/tests/harness/test_report.py b/tests/harness/test_report.py
index af020aee..6b8bc9a4 100644
--- a/tests/harness/test_report.py
+++ b/tests/harness/test_report.py
@@ -80,35 +80,28 @@ def test_each_fired_measure_carries_the_attributes_that_triggered_it() -> None:
     # Assert — the Plan ran and every fired measure names its trigger fields.
     assert report.plan is not None
     assert report.plan_error is None
-    # This gas dwelling lodges an electric secondary heater (SAP 691) on a
-    # category-2 main, so secondary-heating removal (ADR-0028) is a very cheap
-    # SAP lever (\£250); the Optimiser reaches the target band via the fabric
-    # stack + that removal, leaving the \£12k ASHP unselected (it owns the
-    # economics — ADR-0024).
+    # The gain-maximising package: the efficient representative ASHP (ADR-0025)
+    # plus solid-floor insulation. The cavity wall + its forced mechanical
+    # ventilation (ADR-0016) are NOT selected — the wall earns +SAP alone but
+    # the forced-ventilation penalty makes the pair net-negative, so the
+    # Optimiser correctly leaves them out (see test_measure_dependency /
+    # test_optimiser for the forced-edge unit coverage; cavity_wall +
+    # mechanical_ventilation trigger fields are exercised in
+    # test_cavity_wall_recommendation / the ventilation generator tests).
     triggers: dict[str, MeasureTrigger] = _triggers_by_measure(report)
     assert set(triggers) == {
-        "cavity_wall_insulation",
-        "mechanical_ventilation",
         "solid_floor_insulation",
-        "secondary_heating_removal",
-    }
-    # Cavity-fill fired off an uninsulated cavity wall; its dependent MEV fired
-    # because no mechanical ventilation is lodged.
-    assert triggers["cavity_wall_insulation"].triggers == {
-        "wall_construction": 4,
-        "wall_insulation_type": 4,
-    }
-    assert triggers["mechanical_ventilation"].triggers == {
-        "mechanical_ventilation_kind": None,
+        "air_source_heat_pump",
     }
     # Solid-floor insulation fired off an uninsulated solid ground floor.
     assert triggers["solid_floor_insulation"].triggers == {
         "floor_insulation_thickness": None,
         "floor_construction_type": "Solid",
     }
-    # Secondary-heating removal fired off the lodged secondary (SAP code 691).
-    assert triggers["secondary_heating_removal"].triggers == {
-        "secondary_heating_type": 691,
+    # The ASHP bundle fired off the gas-dwelling main it replaces.
+    assert triggers["air_source_heat_pump"].triggers == {
+        "property_type": "0",
+        "main_heating_category": 2,
     }
 
 
@@ -174,18 +167,20 @@ def test_few_measure_cert_surfaces_only_its_fired_measures_triggers() -> None:
     # Act
     report: PropertyReport = build_property_report(path)
 
-    # Assert — 0036 reaches the target band with solid-floor insulation plus
-    # secondary-heating removal (it lodges an electric secondary, SAP 691, on a
-    # gas main — a cheap SAP lever, ADR-0028), and nothing else. The cheaper-to-
-    # target pair displaces the LED upgrade the Optimiser used to add.
+    # Assert — 0036's gain-maximising package is solid-floor insulation plus the
+    # low-energy-lighting upgrade (it lodges 7 low-energy + 0 incandescent fixed
+    # bulbs, so the LED top-up is a cheap positive-SAP lever, ADR-0023), and
+    # nothing else.
     triggers: dict[str, MeasureTrigger] = _triggers_by_measure(report)
-    assert set(triggers) == {"solid_floor_insulation", "secondary_heating_removal"}
+    assert set(triggers) == {"solid_floor_insulation", "low_energy_lighting"}
     assert triggers["solid_floor_insulation"].triggers == {
         "floor_insulation_thickness": None,
         "floor_construction_type": "Solid",
     }
-    assert triggers["secondary_heating_removal"].triggers == {
-        "secondary_heating_type": 691,
+    assert triggers["low_energy_lighting"].triggers == {
+        "incandescent_fixed_lighting_bulbs_count": 0,
+        "cfl_fixed_lighting_bulbs_count": None,
+        "low_energy_fixed_lighting_bulbs_count": 7,
     }