Test suite: Add tests for show(io, ::ElasticManager) (#254)

Author: DilumAluthge

test/elastic.jl

@@ -12,4 +12,14 @@
     end
 
     wait(rmprocs(workers()))
+
+    @testset "show(io, ::ElasticManager)" begin
+        str = sprint(show, em)
+        lines = strip.(split(strip(str), '\n'))
+        @test lines[1] == "ElasticManager:"
+        @test lines[2] == "Active workers : []"
+        @test lines[3] == "Number of workers to be added  : 0"
+        @test lines[4] == "Terminated workers : [ 2]"
+        @test lines[5] == "Worker connect command :"
+    end
 end