improve tests for UI scale, silence warning

Author: nmwsharp

test/src/basics_test.cpp

@@ -169,6 +169,16 @@ TEST_F(PolyscopeTest, NavigationMode) {
   polyscope::view::setNavigateStyle(polyscope::NavigateStyle::Turntable); // set back to usual default
 }
 
+TEST_F(PolyscopeTest, UIScale) {
+
+  // this should trigger a reload of the font atlas
+
+  polyscope::options::uiScale = 1.25;
+  polyscope::show(3);
+
+  polyscope::options::uiScale = 1.;
+  polyscope::show(3);
+}
 
 // ============================================================
 // =============== Ground plane tests

test/src/floating_test.cpp

@@ -193,6 +193,9 @@ TEST_F(PolyscopeTest, FloatingRenderImageTest) {
 
 TEST_F(PolyscopeTest, ImplicitSurfaceRenderImageQuantityTest) {
 
+  // disable for this test
+  polyscope::options::warnForInvalidValues = false;
+
   // sample sdf & color functions
   auto torusSDF = [](glm::vec3 p) {
     float scale = 0.5;
@@ -248,4 +251,5 @@ TEST_F(PolyscopeTest, ImplicitSurfaceRenderImageQuantityTest) {
   polyscope::options::transparencyMode = polyscope::TransparencyMode::None;
 
   polyscope::removeAllStructures();
+  polyscope::options::warnForInvalidValues = true;
 }