try showing more infos

WGLMakie/test/runtests.jl

@@ -22,7 +22,7 @@ excludes = Set([
     "Image on Surface Sphere", # TODO: texture rotated 180°
     # "heatmaps & surface", # TODO: fix direct NaN -> nancolor conversion
     "Array of Images Scatter", # scatter does not support texture images
-    
+
     "Order Independent Transparency",
     "fast pixel marker",
     "Textured meshscatter", # not yet implemented
@@ -52,6 +52,8 @@ end
     session = edisplay.browserdisplay.handler.session
     session_size = Base.summarysize(session) / 10^6
     texture_atlas_size = Base.summarysize(WGLMakie.TEXTURE_ATLAS) / 10^6
+    @show typeof.(last.(WGLMakie.TEXTURE_ATLAS.listeners))
+    @show length(WGLMakie.TEXTURE_ATLAS.listeners)
     @show session_size texture_atlas_size
     @test session_size / 10^6 < 6
     @test texture_atlas_size < 6
@@ -91,7 +93,7 @@ end
         rm(filename)
     end
 
-    
+
     f, a, p = scatter(rand(10));
     filename = "$(tempname()).mp4"
     try
@@ -124,4 +126,4 @@ end
     @test events(f).tick[] == tick
 
     # TODO: test normal rendering
-end
+end