From 101860fac1dfd2eb42b1e5f5480f47d2d8748083 Mon Sep 17 00:00:00 2001
From: Daniel Roth <daniel_roth@hotmail.co.uk>
Date: Thu, 16 Apr 2026 14:01:05 +0000
Subject: [PATCH] =?UTF-8?q?Load=20BuildingConstruction=20from=20SiteNotes?=
 =?UTF-8?q?=20JSON=20=F0=9F=9F=A5?=
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---
 .../documents_parser/tests/test_extractor.py  | 88 ++++++++++++++++++-
 1 file changed, 87 insertions(+), 1 deletion(-)

diff --git a/backend/documents_parser/tests/test_extractor.py b/backend/documents_parser/tests/test_extractor.py
index a40e9d77..c1ab52bf 100644
--- a/backend/documents_parser/tests/test_extractor.py
+++ b/backend/documents_parser/tests/test_extractor.py
@@ -4,7 +4,14 @@ import os
 import pytest
 
 from backend.documents_parser.extractor import PasHubRdSapSiteNotesExtractor
-from datatypes.epc.surveys.pashub_rdsap_site_notes import General, PasHubRdSapSiteNotes
+from datatypes.epc.surveys.pashub_rdsap_site_notes import (
+    BuildingConstruction,
+    ExtensionConstruction,
+    FloorConstruction,
+    General,
+    MainBuildingConstruction,
+    PasHubRdSapSiteNotes,
+)
 
 FIXTURES = os.path.join(os.path.dirname(__file__), "fixtures")
 
@@ -75,3 +82,82 @@ class TestGeneral:
             gas_meter_accessible=True,
             measurements_location="Internal",
         )
+
+
+class TestBuildingConstruction:
+    @pytest.fixture
+    def construction(self) -> BuildingConstruction:
+        return PasHubRdSapSiteNotesExtractor(
+            load_text_fixture()
+        ).extract_building_construction()
+
+    def test_main_building_wall_u_value_known_is_false(
+        self, construction: BuildingConstruction
+    ) -> None:
+        assert construction.main_building.wall_u_value_known is False
+
+    def test_main_building_wall_thickness_mm(
+        self, construction: BuildingConstruction
+    ) -> None:
+        assert construction.main_building.wall_thickness_mm == 310
+
+    def test_main_building_filled_cavity_indicators_present(
+        self, construction: BuildingConstruction
+    ) -> None:
+        assert (
+            construction.main_building.filled_cavity_indicators
+            == "evidence of cavity fill drill holes"
+        )
+
+    def test_extension_filled_cavity_indicators_absent(
+        self, construction: BuildingConstruction
+    ) -> None:
+        assert construction.extensions is not None
+        assert construction.extensions[0].filled_cavity_indicators is None
+
+    def test_one_extension(self, construction: BuildingConstruction) -> None:
+        assert construction.extensions is not None
+        assert len(construction.extensions) == 1
+
+    def test_extension_id(self, construction: BuildingConstruction) -> None:
+        assert construction.extensions is not None
+        assert construction.extensions[0].id == 1
+
+    def test_full_building_construction(
+        self, construction: BuildingConstruction
+    ) -> None:
+        assert construction == BuildingConstruction(
+            main_building=MainBuildingConstruction(
+                age_range="1950-1966",
+                age_indicators="local knowledge, enquiries of owner",
+                walls_construction_type="Cavity",
+                cavity_construction_indicators="wall thickness over 270 mm",
+                walls_insulation_type="Filled Cavity",
+                filled_cavity_indicators="evidence of cavity fill drill holes",
+                thermal_conductivity_of_wall_insulation="Unknown",
+                wall_u_value_known=False,
+                wall_thickness_mm=310,
+                party_wall_construction_type="Cavity Masonry, Filled",
+            ),
+            floor=FloorConstruction(
+                floor_type="Ground Floor",
+                floor_construction="Solid",
+                floor_insulation_type="As Built",
+                floor_u_value_known=False,
+            ),
+            extensions=[
+                ExtensionConstruction(
+                    id=1,
+                    age_range="2003-2006",
+                    age_indicators="local knowledge, enquiries of owner",
+                    walls_construction_type="Cavity",
+                    cavity_construction_indicators="wall thickness over 270 mm",
+                    walls_insulation_type="As built",
+                    thermal_conductivity_of_wall_insulation="Unknown",
+                    wall_u_value_known=False,
+                    wall_thickness_mm=310,
+                    party_wall_construction_type="Cavity Masonry, Filled",
+                    filled_cavity_indicators=None,
+                )
+            ],
+        )