Add a pyplot based julia test case
ADD
tests/julia/pyplot/REQUIRE
+PyPlot

ADD
tests/julia/pyplot/environment.yml
+dependencies:
+ - matplotlib
+

ADD
tests/julia/pyplot/verify
+#!/usr/bin/env julia
+# We try to plot something, and see if the file saved exists
+using PyPlot
+x = linspace(0,2*pi,1000); y = sin(3*x + 4*cos(2*x))
+plot(x, y, color="red", linewidth=2.0, linestyle="--")
+savefig("graph.png")
+if isfile("graph.png")
+ exit(0)
+else
+ exit(1)
+end
+

Add a pyplot based julia test case