feat: add conversational RollCalc assistant

tests/test_core_presets.py

@@ -0,0 +1,67 @@
+import base64
+import os
+import re
+import tempfile
+import unittest
+from unittest.mock import patch
+
+import app as rollcalc_app
+from core_presets import CORE_PRESETS, matching_core_presets
+
+
+class CorePresetTests(unittest.TestCase):
+    def test_rendered_web_ui_preset_list_is_unchanged(self):
+        expected = [
+            ("133", "steel", "133mm Stahl"),
+            ("150", "pvc", "150mm PVC"),
+            ("168", "pvc", "168mm PVC"),
+            ("194", "steel", "194mm Stahl"),
+        ]
+        credentials = base64.b64encode(b"mtazl:rollcalc").decode("ascii")
+        with tempfile.TemporaryDirectory() as temp_dir:
+            log_file = os.path.join(temp_dir, "access.json")
+            with patch.object(rollcalc_app, "LOG_FILE", log_file):
+                response = rollcalc_app.app.test_client().get(
+                    "/",
+                    headers={"Authorization": f"Basic {credentials}"},
+                )
+
+        self.assertEqual(response.status_code, 200)
+        rendered = re.findall(
+            r'class="core-preset-btn" data-core="([^"]+)" '
+            r'data-core-material="([^"]+)">([^<]+)</button>',
+            response.get_data(as_text=True),
+        )
+        self.assertEqual(rendered, expected)
+        self.assertEqual(
+            [
+                (preset.ui_diameter, preset.material, preset.label)
+                for preset in CORE_PRESETS
+            ],
+            expected,
+        )
+
+    def test_explicit_finite_aliases_resolve_one_canonical_preset(self):
+        german = matching_core_presets("194 mm Stahlkern")
+        english = matching_core_presets("194 mm steel core")
+
+        self.assertEqual(german, english)
+        self.assertEqual(len(german), 1)
+        self.assertEqual(german[0].key, "steel_194")
+
+    def test_generic_existing_families_are_genuinely_ambiguous(self):
+        self.assertEqual(
+            [preset.key for preset in matching_core_presets("Stahlkern")],
+            ["steel_133", "steel_194"],
+        )
+        self.assertEqual(
+            [preset.key for preset in matching_core_presets("plastic core")],
+            ["pvc_150", "pvc_168"],
+        )
+
+    def test_unknown_core_label_does_not_match(self):
+        self.assertEqual(matching_core_presets("cardboard core"), ())
+
+
+if __name__ == "__main__":
+    unittest.main()