From a39582c06e1c5524f5321f6ef52725787320946a Mon Sep 17 00:00:00 2001
From: t-bltg <13423344+t-bltg@users.noreply.github.com>
Date: Thu, 22 Jul 2021 02:05:48 +0200
Subject: [PATCH] Preempt IMG_TOL with env variable

---
 test/runtests.jl | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/test/runtests.jl b/test/runtests.jl
index 5221f6b1..5b280508 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -71,27 +71,32 @@ include("imgcomp.jl")
 Random.seed!(1234)
 default(show=false, reuse=true)
 is_ci() = get(ENV, "CI", "false") == "true"
-const IMG_TOL = VERSION < v"1.4" && Sys.iswindows() ? 1e-1 : is_ci() ? 1e-2 : 1e-3
+const PLOTS_IMG_TOL = parse(
+    Float64, get(
+        ENV, "PLOTS_IMG_TOL",
+        VERSION < v"1.4" && Sys.iswindows() ? "1e-1" : is_ci() ? "1e-2" : "1e-3"
+    )
+)
 
 ## Uncomment the following lines to update reference images for different backends
 
 # @testset "GR" begin
-#     image_comparison_facts(:gr, tol=IMG_TOL, skip = Plots._backend_skips[:gr])
+#     image_comparison_facts(:gr, tol=PLOTS_IMG_TOL, skip = Plots._backend_skips[:gr])
 # end
 #
 # plotly()
 # @testset "Plotly" begin
-#     image_comparison_facts(:plotly, tol=IMG_TOL, skip = Plots._backend_skips[:plotlyjs])
+#     image_comparison_facts(:plotly, tol=PLOTS_IMG_TOL, skip = Plots._backend_skips[:plotlyjs])
 # end
 #
 # pyplot()
 # @testset "PyPlot" begin
-#     image_comparison_facts(:pyplot, tol=IMG_TOL, skip = Plots._backend_skips[:pyplot])
+#     image_comparison_facts(:pyplot, tol=PLOTS_IMG_TOL, skip = Plots._backend_skips[:pyplot])
 # end
 #
 # pgfplotsx()
 # @testset "PGFPlotsX" begin
-#     image_comparison_facts(:pgfplotsx, tol=IMG_TOL, skip = Plots._backend_skips[:pgfplotsx])
+#     image_comparison_facts(:pgfplotsx, tol=PLOTS_IMG_TOL, skip = Plots._backend_skips[:pgfplotsx])
 # end
 
 # 10 Histogram2D
@@ -109,7 +114,7 @@ const IMG_TOL = VERSION < v"1.4" && Sys.iswindows() ? 1e-1 : is_ci() ? 1e-2 : 1e
         @static if haskey(ENV, "APPVEYOR")
             @info "Skipping GR image comparison tests on AppVeyor"
         else
-            image_comparison_facts(:gr, tol=IMG_TOL, skip=Plots._backend_skips[:gr])
+            image_comparison_facts(:gr, tol=PLOTS_IMG_TOL, skip=Plots._backend_skips[:gr])
         end
     end