diff --git a/tests/controls/dataviewctrltest.cpp b/tests/controls/dataviewctrltest.cpp
index bfb849b14d..9d308117f2 100644
--- a/tests/controls/dataviewctrltest.cpp
+++ b/tests/controls/dataviewctrltest.cpp
@@ -873,6 +873,7 @@ TEST_CASE_METHOD(SingleSelectDataViewCtrlTestCase,
     EventCounter keyEvents(m_dvc, wxEVT_KEY_DOWN);
 
     m_dvc->SetFocus();
+    wxYield();
 
     wxUIActionSimulator sim;
     sim.Char(WXK_DOWN);
diff --git a/tests/controls/gridtest.cpp b/tests/controls/gridtest.cpp
index 103937c8b8..738c4846cf 100644
--- a/tests/controls/gridtest.cpp
+++ b/tests/controls/gridtest.cpp
@@ -973,6 +973,7 @@ TEST_CASE_METHOD(GridTestCase, "Grid::MoveGridCursorUsingEndKey", "[grid]")
     m_grid->SetColPos(10, 5);
 
     m_grid->SetFocus();
+    wxYield();
 
     sim.KeyDown(WXK_END, wxMOD_CONTROL);
     sim.KeyUp(WXK_END, wxMOD_CONTROL);
@@ -999,6 +1000,7 @@ TEST_CASE_METHOD(GridTestCase, "Grid::SelectUsingEndKey", "[grid]")
     REQUIRE( m_grid->IsVisible(0, 0) );
 
     m_grid->SetFocus();
+    wxYield();
 
     sim.KeyDown(WXK_END, wxMOD_CONTROL | wxMOD_SHIFT);
     sim.KeyUp(WXK_END, wxMOD_CONTROL | wxMOD_SHIFT);
@@ -1373,6 +1375,8 @@ TEST_CASE_METHOD(GridTestCase, "Grid::Editable", "[grid]")
     m_grid->SetFocus();
     m_grid->SetGridCursor(1, 1);
 
+    wxYield();
+
     sim.Text("abab");
     wxYield();
 
@@ -1404,6 +1408,8 @@ TEST_CASE_METHOD(GridTestCase, "Grid::ReadOnly", "[grid]")
 
     m_grid->SetGridCursor(1, 1);
 
+    wxYield();
+
     CHECK(m_grid->IsCurrentCellReadOnly());
 
     sim.Text("abab");
diff --git a/tests/controls/itemcontainertest.cpp b/tests/controls/itemcontainertest.cpp
index 44c06a367a..70d89fed7a 100644
--- a/tests/controls/itemcontainertest.cpp
+++ b/tests/controls/itemcontainertest.cpp
@@ -345,6 +345,7 @@ void ItemContainerTestCase::SimSelect()
     container->Append("third");
 
     GetContainerWindow()->SetFocus();
+    wxYield();
 
     wxUIActionSimulator sim;
     CPPUNIT_ASSERT( sim.Select("third") );
diff --git a/tests/controls/slidertest.cpp b/tests/controls/slidertest.cpp
index af1a8ae15f..8ee6db458a 100644
--- a/tests/controls/slidertest.cpp
+++ b/tests/controls/slidertest.cpp
@@ -93,6 +93,7 @@ void SliderTestCase::PageUpDown()
     wxUIActionSimulator sim;
 
     m_slider->SetFocus();
+    wxYield();
 
     sim.Char(WXK_PAGEUP);
     sim.Char(WXK_PAGEDOWN);
@@ -111,8 +112,9 @@ void SliderTestCase::LineUpDown()
     EventCounter linedown(m_slider, wxEVT_SCROLL_LINEDOWN);
 
     wxUIActionSimulator sim;
-    wxYield();
+
     m_slider->SetFocus();
+    wxYield();
 
     sim.Char(WXK_UP);
     sim.Char(WXK_DOWN);
@@ -130,8 +132,9 @@ void SliderTestCase::EvtSlider()
     EventCounter slider(m_slider, wxEVT_SLIDER);
 
     wxUIActionSimulator sim;
-    wxYield();
+
     m_slider->SetFocus();
+    wxYield();
 
     sim.Char(WXK_UP);
     sim.Char(WXK_DOWN);
@@ -146,8 +149,9 @@ void SliderTestCase::LinePageSize()
 {
 #if wxUSE_UIACTIONSIMULATOR
     wxUIActionSimulator sim;
-    wxYield();
+
     m_slider->SetFocus();
+    wxYield();
 
     m_slider->SetPageSize(20);
 
diff --git a/tests/validators/valnum.cpp b/tests/validators/valnum.cpp
index 49c912187a..1702d30486 100644
--- a/tests/validators/valnum.cpp
+++ b/tests/validators/valnum.cpp
@@ -281,6 +281,7 @@ TEST_CASE_METHOD(NumValidatorTestCase, "ValNum::Interactive", "[valnum]")
 
     // Entering '-' in a control with positive range is not allowed.
     m_text->SetFocus();
+    wxYield();
     sim.Char('-');
     wxYield();
     CHECK( m_text->GetValue() == "" );