alternative

Author: IanButterworth

test/pkg.jl

@@ -363,15 +363,26 @@ temp_pkg_dir() do project_path
         @test any(x -> startswith(x, manifest), keys(usage))
     end
 
-    @testset "atomic write_env_usage with $(Sys.CPU_THREADS) processes for 10 seconds" begin
+    @testset "test atomicity of write_env_usage with $(Sys.CPU_THREADS) parallel processes" begin
         tasks = Task[]
         iobs = IOBuffer[]
         Sys.CPU_THREADS == 1 && error("Cannot test for atomic usage log file interaction effectively with only Sys.CPU_THREADS=1")
         run(`$(Base.julia_cmd()) --project="$(pkgdir(Pkg))" -e "import Pkg"`) # to precompile Pkg given we're in a different depot
         for i in 1:Sys.CPU_THREADS
             iob = IOBuffer()
             t = @async run(pipeline(`$(Base.julia_cmd()) --project="$(pkgdir(Pkg))"
-                -e "import Pkg; for i in 1:50 Pkg.activate(temp = true); Pkg.add(\"Random\", io = devnull); Pkg.Types.EnvCache(); end"`,
+                -e "import Pkg;
+                Pkg.UPDATED_REGISTRY_THIS_SESSION[] = true;
+                Pkg.activate(temp = true);
+                    Pkg.add(\"Random\", io = devnull);
+                    for i in 1:100
+                        try
+                            Pkg.Types.EnvCache()
+                        catch
+                            println(stderr, \"Errored after $i iterations\")
+                            rethrow()
+                        end
+                    end"`,
                 stderr = iob, stdout = devnull))
             push!(tasks, t)
             push!(iobs, iob)