Use LOOSE_VALID for tests with text

Charts/Core/Testing/Python/CMakeLists.txt

 # These tests should use vtk.test.Testing.
 vtk_add_test_python(
-  NO_RT NO_OUTPUT
-  TestBarGraph.py
-  TestLinePlot.py
-  TestStackedPlot.py
-  TestLinePlotColors.py
-  TestParallelCoordinatesColors.py
-  TestScatterPlotColors.py
+  TestBarGraph.py,LOOSE_VALID
+  TestLinePlot.py,LOOSE_VALID
+  TestStackedPlot.py,LOOSE_VALID
+  TestLinePlotColors.py,LOOSE_VALID
+  TestParallelCoordinatesColors.py,LOOSE_VALID
+  TestScatterPlotColors.py,LOOSE_VALID
   )

Common/ComputationalGeometry/Testing/Python/CMakeLists.txt

 vtk_add_test_python(
   CSpline.py
   KSpline.py
-  TestParametricFunctions.py
-  TestMoreParametricFunctions.py
+  TestParametricFunctions.py,LOOSE_VALID
+  TestMoreParametricFunctions.py,LOOSE_VALID
   closedSplines.py
   )

Filters/Core/Testing/Python/CMakeLists.txt

@@ -102,7 +102,7 @@ vtk_add_test_python(
   fieldToUGrid.py
   financialField.py
   financialField2.py
-  financialField3.py
+  financialField3.py,LOOSE_VALID
 # glyphComb.py #19221
   hull.py
   mergeFilter.py

Interaction/Widgets/Testing/Python/CMakeLists.txt

@@ -10,7 +10,7 @@ if(vtk_can_do_onscreen AND NOT VTK_DEFAULT_RENDER_WINDOW_OFFSCREEN)
     TestMagnifierWidget.py
     TestPointCloudWidget.py
     TestPointCloudWidget2.py
-    TestSphereWidget.py
+    TestSphereWidget.py,LOOSE_VALID
     TestTensorWidget.py
     TestTensorWidget2.py
     TestTextWidget.py

Rendering/FreeType/Testing/Cxx/CMakeLists.txt

@@ -12,7 +12,7 @@ vtk_add_test_cxx(vtkRenderingFreeTypeCxxTests tests
   TestMathTextFreeTypeTextRendererNoMath.cxx
   TestTextActor.cxx
   TestTextActorTileScaling.cxx
-  TestTextActor3D.cxx
+  TestTextActor3D.cxx,LOOSE_VALID
   TestTextActorAlphaBlending.cxx,LOOSE_VALID
   TestTextActorDepthPeeling.cxx
   TestTextActor3DAlphaBlending.cxx