feat(ui): Implement dual-pane AST Inspector with line-based highlights

tests/test_ast_inspector_extended.py

@@ -0,0 +1,45 @@
+import unittest.mock
+from unittest.mock import MagicMock, patch
+from src.gui_2 import App
+from src import models
+
+def test_ast_inspector_line_range_parsing():
+ # 1. Setup mock App instance
+ app = MagicMock(spec=App)
+ app._show_ast_inspector = True
+ app.ui_inspecting_ast_file = models.FileItem(path="test.py")
+ app._cached_ast_file_path = ""
+ app._cached_ast_nodes = []
+ 
+ # 2. Define mock outline string with line ranges
+ # Note: outline_tool uses 2 spaces for indent
+ mock_outline = "[Func] foo (Lines 10-20)\n  [Class] Bar (Lines 30-50)"
+ 
+ # 3. Patch imgui and mcp_client
+ with patch("src.gui_2.imgui") as mock_imgui, \
+      patch("src.gui_2.mcp_client.py_get_code_outline", return_value=mock_outline):
+  
+  # begin_popup_modal needs to return (expanded, opened)
+  mock_imgui.begin_popup_modal.return_value = (True, True)
+  # begin_child returns True usually
+  mock_imgui.begin_child.return_value = True
+  # radio_button returns (changed, active)
+  mock_imgui.radio_button.return_value = (False, False)
+  
+  # 4. Call the method
+  App._render_ast_inspector_modal(app)
+  
+  # 5. Assertions
+  assert len(app._cached_ast_nodes) == 2
+  
+  node1 = app._cached_ast_nodes[0]
+  assert node1['name'] == "foo"
+  assert node1['kind'] == "Func"
+  assert node1['start_line'] == 10
+  assert node1['end_line'] == 20
+  
+  node2 = app._cached_ast_nodes[1]
+  assert node2['name'] == "Bar"
+  assert node2['kind'] == "Class"
+  assert node2['start_line'] == 30
+  assert node2['end_line'] == 50