Refactor graph_extractors.py: Improve callout extraction logic by enhancing regex patterns to better support nested [!edge] callouts and refining indentation handling for more accurate parsing of input text.

tests/test_callout_edges.py

@@ -0,0 +1,143 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+tests/test_callout_edges.py
+Unit-Tests für extract_callout_relations Funktion.
+Testet einfache und verschachtelte Callout-Formate.
+"""
+
+import unittest
+from app.core.graph.graph_extractors import extract_callout_relations
+
+
+class TestCalloutEdges(unittest.TestCase):
+    """Testet die Extraktion von Edge-Callouts aus Markdown."""
+
+    def test_simple_callout_single_target(self):
+        """Test: Einfaches Callout mit einem Target."""
+        text = """> [!edge] related_to
+> [[Target]]"""
+        
+        pairs, remaining = extract_callout_relations(text)
+        
+        self.assertEqual(len(pairs), 1)
+        self.assertEqual(pairs[0], ("related_to", "Target"))
+        self.assertNotIn("[!edge]", remaining)
+
+    def test_simple_callout_multiple_targets(self):
+        """Test: Einfaches Callout mit mehreren Targets."""
+        text = """> [!edge] related_to
+> [[Target1]]
+> [[Target2]]
+> [[Target3]]"""
+        
+        pairs, remaining = extract_callout_relations(text)
+        
+        self.assertEqual(len(pairs), 3)
+        self.assertIn(("related_to", "Target1"), pairs)
+        self.assertIn(("related_to", "Target2"), pairs)
+        self.assertIn(("related_to", "Target3"), pairs)
+
+    def test_nested_callout_single_edge(self):
+        """Test: Verschachteltes Callout mit einem Edge-Typ."""
+        text = """> [!abstract]- 🕸️ Semantic Mapping
+>> [!edge] related_to
+>> [[Brigitte]]
+>> [[Klaus]]
+>> [[Salami Fertigpizza]]"""
+        
+        pairs, remaining = extract_callout_relations(text)
+        
+        self.assertEqual(len(pairs), 3)
+        self.assertIn(("related_to", "Brigitte"), pairs)
+        self.assertIn(("related_to", "Klaus"), pairs)
+        self.assertIn(("related_to", "Salami Fertigpizza"), pairs)
+
+    def test_nested_callout_multiple_edges(self):
+        """Test: Verschachteltes Callout mit mehreren Edge-Typen."""
+        text = """> [!abstract]- 🕸️ Semantic Mapping
+>> [!edge] related_to
+>> [[Brigitte]]
+>> [[Klaus]]
+>> [[Salami Fertigpizza]]
+>
+>>  [!edge] derived_from
+>> [[Link 2]]"""
+        
+        pairs, remaining = extract_callout_relations(text)
+        
+        # Prüfe related_to Edges
+        related_pairs = [p for p in pairs if p[0] == "related_to"]
+        self.assertEqual(len(related_pairs), 3)
+        self.assertIn(("related_to", "Brigitte"), pairs)
+        self.assertIn(("related_to", "Klaus"), pairs)
+        self.assertIn(("related_to", "Salami Fertigpizza"), pairs)
+        
+        # Prüfe derived_from Edge
+        derived_pairs = [p for p in pairs if p[0] == "derived_from"]
+        self.assertEqual(len(derived_pairs), 1)
+        self.assertIn(("derived_from", "Link 2"), pairs)
+
+    def test_mixed_callouts(self):
+        """Test: Gemischte einfache und verschachtelte Callouts."""
+        text = """> [!edge] depends_on
+> [[Dependency1]]
+
+> [!abstract] Test
+>> [!edge] related_to
+>> [[Target1]]
+>> [!edge] derived_from
+>> [[Target2]]"""
+        
+        pairs, remaining = extract_callout_relations(text)
+        
+        # Einfaches Callout
+        self.assertIn(("depends_on", "Dependency1"), pairs)
+        
+        # Verschachtelte Callouts
+        self.assertIn(("related_to", "Target1"), pairs)
+        self.assertIn(("derived_from", "Target2"), pairs)
+
+    def test_callout_with_explicit_format(self):
+        """Test: Callout mit explizitem 'kind: targets' Format."""
+        text = """> [!edge] related_to: [[Target1]] [[Target2]]"""
+        
+        pairs, remaining = extract_callout_relations(text)
+        
+        self.assertEqual(len(pairs), 2)
+        self.assertIn(("related_to", "Target1"), pairs)
+        self.assertIn(("related_to", "Target2"), pairs)
+
+    def test_empty_callout(self):
+        """Test: Leeres Callout ohne Targets."""
+        text = """> [!edge] related_to"""
+        
+        pairs, remaining = extract_callout_relations(text)
+        
+        self.assertEqual(len(pairs), 0)
+
+    def test_no_callouts(self):
+        """Test: Text ohne Callouts bleibt unverändert."""
+        text = """Normaler Text ohne Callouts.
+[[Ein normaler Link]]"""
+        
+        pairs, remaining = extract_callout_relations(text)
+        
+        self.assertEqual(len(pairs), 0)
+        self.assertEqual(remaining, text)
+
+    def test_callout_with_section_links(self):
+        """Test: Callout mit Section-Links (Deep-Links)."""
+        text = """> [!edge] related_to
+> [[Target#Section1]]
+> [[Target#Section2]]"""
+        
+        pairs, remaining = extract_callout_relations(text)
+        
+        self.assertEqual(len(pairs), 2)
+        self.assertIn(("related_to", "Target#Section1"), pairs)
+        self.assertIn(("related_to", "Target#Section2"), pairs)
+
+
+if __name__ == "__main__":
+    unittest.main()