reproduce 3D docs plot

test/test_pgfplotsx.jl

@@ -23,7 +23,7 @@ end
         z = 1:n
         pl = plot(x, y, z, zcolor=reverse(z), m=(10, 0.8, :blues, Plots.stroke(0)), leg=false, cbar=true, w=5)
         pgfx_plot, pgfx_tex = create_plot!(pl, zeros(n), zeros(n), 1:n, w=10)
-        if @test_nowarn(haskey(pgfx_plot.o.contents[1].options.dict, "colormap") == true)
+        if @test_nowarn(haskey(pgfx_plot.o.contents[1].options.dict, "colorbar") == true)
             @test pgfx_plot.o.contents[1]["colorbar"] === nothing
         end
      end # testset