Use a deterministic image

It explicitly has elements that should require the full bit depth to distinguish.
JuliaIO · Apr 15, 2016 · bb7ea36 · bb7ea36
1 parent edf54bc
commit bb7ea36
Showing 1 changed file with 2 additions and 4 deletions.
diff --git a/test/constructed_images.jl b/test/constructed_images.jl
@@ -32,11 +32,9 @@ facts("IO") do
     end
 
     context("Gray png") do
-        a = rand(2,2)
-        a[1,1] = 1
-        a[2,2] = 0
+        a = [0 1/2^16 1/2^8; 1-1/2^8 1-1/2^16 1]
         aa = convert(Array{UFixed8}, a)
-        fn = joinpath(workdir, "2by2.png")
+        fn = joinpath(workdir, "2by3.png")
         ImageMagick.save(fn, a)
         b = ImageMagick.load(fn)
         @fact convert(Array, b) --> aa