add tests

Project.toml

@@ -47,6 +47,7 @@ ImageMagick = "6218d12a-5da1-5696-b52f-db25d2ecc6d1"
 Images = "916415d5-f1e6-5110-898d-aaa5f9f070e0"
 LaTeXStrings = "b964fa9f-0449-5b57-a5c2-d3ea65f4040f"
 LibGit2 = "76f85450-5226-5b5a-8eaa-529ad045b433"
+PGFPlotsX = "8314cec4-20b6-5062-9cdb-752b83310925"
 RDatasets = "ce6b1742-4840-55fa-b093-852dadbb1d8b"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 StatsPlots = "f3b207a7-027a-5e70-b257-86293d7955fd"
@@ -55,4 +56,4 @@ UnicodePlots = "b8865327-cd53-5732-bb35-84acbb429228"
 VisualRegressionTests = "34922c18-7c2a-561c-bac1-01e79b2c4c92"
 
 [targets]
-test = ["FileIO", "GeometryTypes", "Gtk", "ImageMagick", "Images", "LaTeXStrings", "LibGit2", "Random", "RDatasets", "StatsPlots", "Test", "UnicodePlots", "VisualRegressionTests"]
+test = ["FileIO", "GeometryTypes", "Gtk", "ImageMagick", "Images", "LaTeXStrings", "LibGit2", "PGFPlotsX", "Random", "RDatasets", "StatsPlots", "Test", "UnicodePlots", "VisualRegressionTests"]

src/backends/pgfplotsx.jl

@@ -567,18 +567,22 @@ function _update_plot_object(plt::Plot{PGFPlotsXBackend})
 end
 
 function _show(io::IO, mime::MIME"image/svg+xml", plt::Plot{PGFPlotsXBackend})
+    _update_plot_object(plt)
     show(io, mime, plt.o)
 end
 
 function _show(io::IO, mime::MIME"application/pdf", plt::Plot{PGFPlotsXBackend})
+    _update_plot_object(plt)
     show(io, mime, plt.o)
 end
 
 function _show(io::IO, mime::MIME"image/png", plt::Plot{PGFPlotsXBackend})
+    _update_plot_object(plt)
     show(io, mime, plt.o)
 end
 
 function _show(io::IO, mime::MIME"application/x-tex", plt::Plot{PGFPlotsXBackend})
+    _update_plot_object(plt)
     PGFPlotsX.print_tex(plt.o)
 end
 

test/runtests.jl

@@ -8,6 +8,8 @@ using Gtk
 using LibGit2
 using GeometryTypes
 
+include("test_pgfplotsx.jl")
+
 reference_dir(args...) = joinpath(homedir(), ".julia", "dev", "PlotReferenceImages", args...)
 
 function reference_file(backend, i, version)

test/test_pgfplotsx.jl

@@ -0,0 +1,13 @@
+using Plots, Test
+pgfplotsx()
+
+function create_plot( args...; kwargs... )
+    pgfx_plot = plot(args..., kwargs...)
+    return pgfx_plot, repr("application/x-tex", pgfx_plot)
+end
+
+@testset "PGFPlotsX" begin
+    pgfx_plot, pgfx_tex = create_plot(1:5)
+    
+    @test pgfx_plot.o isa PGFPlotsX.GroupPlot
+end # testset