diff --git a/tests/test_gui/test_gui_docviewer.py b/tests/test_gui/test_gui_docviewer.py
index 8c928a97..3585c8c8 100644
--- a/tests/test_gui/test_gui_docviewer.py
+++ b/tests/test_gui/test_gui_docviewer.py
@@ -38,6 +38,7 @@ def testGuiViewer_Main(qtbot, monkeypatch, nwGUI, nwLipsum):
     """
     # Block message box
     monkeypatch.setattr(QMessageBox, "question", lambda *args: QMessageBox.Yes)
+    monkeypatch.setattr(QMessageBox, "information", lambda *args: QMessageBox.Yes)
 
     # Open project
     nwGUI.theProject.projTree.setSeed(42)
diff --git a/tests/test_gui/test_gui_outline.py b/tests/test_gui/test_gui_outline.py
index 125e59b4..bfeb2f96 100644
--- a/tests/test_gui/test_gui_outline.py
+++ b/tests/test_gui/test_gui_outline.py
@@ -37,6 +37,7 @@ def testGuiOutline_Main(qtbot, monkeypatch, nwGUI, nwLipsum):
     """
     # Block message box
     monkeypatch.setattr(QMessageBox, "question", lambda *args: QMessageBox.Yes)
+    monkeypatch.setattr(QMessageBox, "information", lambda *args: QMessageBox.Yes)
 
     assert nwGUI.openProject(nwLipsum)
     nwGUI.mainConf.lastPath = nwLipsum
diff --git a/tests/test_gui/test_gui_projsettings.py b/tests/test_gui/test_gui_projsettings.py
index 50a5fff1..9955aac8 100644
--- a/tests/test_gui/test_gui_projsettings.py
+++ b/tests/test_gui/test_gui_projsettings.py
@@ -48,6 +48,7 @@ def testGuiProjSettings_Dialog(qtbot, monkeypatch, nwGUI, fncDir, fncProj, outDi
 
     # Block message box
     monkeypatch.setattr(QMessageBox, "question", lambda *args: QMessageBox.Yes)
+    monkeypatch.setattr(QMessageBox, "critical", lambda *args: QMessageBox.Yes)
 
     # Check that we cannot open when there is no project
     nwGUI.mainMenu.aProjectSettings.activate(QAction.Trigger)
diff --git a/tests/test_gui/test_gui_projtree.py b/tests/test_gui/test_gui_projtree.py
index 317b8c58..c750537c 100644
--- a/tests/test_gui/test_gui_projtree.py
+++ b/tests/test_gui/test_gui_projtree.py
@@ -38,6 +38,9 @@ def testGuiProjTree_TreeItems(qtbot, caplog, monkeypatch, nwGUI, nwMinimal):
     """
     # Block message box
     monkeypatch.setattr(QMessageBox, "question", lambda *args: QMessageBox.Yes)
+    monkeypatch.setattr(QMessageBox, "critical", lambda *args: QMessageBox.Yes)
+    monkeypatch.setattr(QMessageBox, "warning", lambda *args: QMessageBox.Yes)
+    monkeypatch.setattr(QMessageBox, "information", lambda *args: QMessageBox.Yes)
     monkeypatch.setattr(GuiMain, "editItem", lambda *args: None)
     monkeypatch.setattr(GuiProjectTree, "hasFocus", lambda *args: True)
 
@@ -96,12 +99,12 @@ def testGuiProjTree_TreeItems(qtbot, caplog, monkeypatch, nwGUI, nwMinimal):
     nwTree.setSelectedHandle("8c659a11cd429")
 
     # Shift focus and try to move item
-    monkeypatch.setattr("PyQt5.QtWidgets.qApp.focusWidget", lambda: None)
+    monkeypatch.setattr(GuiProjectTree, "hasFocus", lambda *args: False)
     assert not nwTree.moveTreeItem(1)
     assert nwTree.getTreeFromHandle("a6d311a93600a") == [
         "a6d311a93600a", "f5ab3e30151e1", "8c659a11cd429", "44cb730c42048", "71ee45a3c0db9"
     ]
-    monkeypatch.setattr("PyQt5.QtWidgets.qApp.focusWidget", lambda: nwTree)
+    monkeypatch.setattr(GuiProjectTree, "hasFocus", lambda *args: True)
 
     # Move second item up twice (should give same result)
     nwGUI.mainMenu.aMoveUp.activate(QAction.Trigger)
diff --git a/tests/test_gui/test_gui_projwizard.py b/tests/test_gui/test_gui_projwizard.py
index f2a967fc..4208bc8f 100644
--- a/tests/test_gui/test_gui_projwizard.py
+++ b/tests/test_gui/test_gui_projwizard.py
@@ -46,6 +46,7 @@ def testGuiProjectWizard_Main(qtbot, monkeypatch, nwGUI, nwMinimal):
     """
     # Block message box
     monkeypatch.setattr(QMessageBox, "question", lambda *args: QMessageBox.Yes)
+    monkeypatch.setattr(QMessageBox, "critical", lambda *args: QMessageBox.Yes)
 
     if sys.platform.startswith("darwin"):
         # Disable for macOS because the test segfaults on QWizard.show()