feat(qt_utils): added error handle utility with popup messageBoxes

tests/unit_tests/test_error_utils.py

@@ -0,0 +1,53 @@
+from unittest.mock import patch
+
+import pytest
+from qtpy.QtWidgets import QMessageBox
+
+from bec_widgets.qt_utils.error_popups import ErrorPopupUtility, ExampleWidget
+
+
+@pytest.fixture
+def widget(qtbot):
+    test_widget = ExampleWidget()
+    qtbot.addWidget(test_widget)
+    qtbot.waitExposed(test_widget)
+    yield test_widget
+    test_widget.close()
+
+
+@patch.object(QMessageBox, "exec_", return_value=QMessageBox.Ok)
+def test_show_error_message_global(mock_exec, widget, qtbot):
+    error_utility = ErrorPopupUtility()
+    error_utility.enable_global_error_popups(True)
+
+    with qtbot.waitSignal(error_utility.error_occurred, timeout=1000) as blocker:
+        error_utility.error_occurred.emit("Test Error", "This is a test error message.", widget)
+
+    assert mock_exec.called
+    assert blocker.signal_triggered
+
+
+@patch.object(QMessageBox, "exec_", return_value=QMessageBox.Ok)
+def test_decorated_function(mock_exec, widget, qtbot):
+    error_utility = ErrorPopupUtility()
+    error_utility.enable_global_error_popups(False)
+
+    with pytest.raises(ValueError) as excinfo:
+        with qtbot.waitSignal(error_utility.error_occurred, timeout=1000) as blocker:
+            widget.method_with_error_handling()
+
+    assert blocker.signal_triggered
+    assert mock_exec.called
+
+
+@patch.object(QMessageBox, "exec_", return_value=QMessageBox.Ok)
+def test_not_decorated_function(mock_exec, widget, qtbot):
+    error_utility = ErrorPopupUtility()
+    error_utility.enable_global_error_popups(False)
+
+    with pytest.raises(ValueError) as excinfo:
+        with qtbot.waitSignal(error_utility.error_occurred, timeout=1000) as blocker:
+            widget.method_without_error_handling()
+
+    assert not blocker.signal_triggered
+    assert not mock_exec.called