Local changes: Updated model training, removed debug instrumentation, and configuration improvements

tests/utils/ui_helpers.py

@@ -0,0 +1,60 @@
+"""UI testing utilities and helpers."""
+
+from PyQt6.QtWidgets import QApplication
+from typing import Optional
+
+
+def get_or_create_qapplication() -> QApplication:
+    """Get existing QApplication or create new one.
+    
+    Returns:
+        QApplication instance
+    """
+    app = QApplication.instance()
+    if app is None:
+        app = QApplication([])
+    return app
+
+
+def create_test_widget(widget_class, *args, **kwargs):
+    """Create widget instance for testing.
+    
+    Args:
+        widget_class: Widget class to instantiate
+        *args: Positional arguments for widget
+        **kwargs: Keyword arguments for widget
+        
+    Returns:
+        Widget instance
+    """
+    app = get_or_create_qapplication()
+    return widget_class(*args, **kwargs)
+
+
+class SignalSpy:
+    """Helper to spy on Qt signals."""
+    
+    def __init__(self, signal):
+        """Initialize signal spy.
+        
+        Args:
+            signal: Qt signal to spy on
+        """
+        self.signal = signal
+        self.calls = []
+        signal.connect(self._on_signal)
+    
+    def _on_signal(self, *args, **kwargs):
+        """Record signal emission."""
+        self.calls.append((args, kwargs))
+    
+    def assert_called(self, times: Optional[int] = None):
+        """Assert signal was called.
+        
+        Args:
+            times: Expected number of calls (None for any)
+        """
+        if times is None:
+            assert len(self.calls) > 0, "Signal was not called"
+        else:
+            assert len(self.calls) == times, f"Signal called {len(self.calls)} times, expected {times}"