Fix or suppress some noisy tests 🏌️‍♂️

stdlib/Artifacts/test/refresh_artifacts.jl

@@ -12,11 +12,11 @@ let
             if meta isa Array
                 for meta in meta
                     get(meta, "lazy", false) && continue
-                    ensure_artifact_installed(name, meta, toml; platform=unused)
+                    ensure_artifact_installed(name, meta, toml; platform=unused, io = devnull)
                 end
             else; meta::Dict
                 get(meta, "lazy", false) && continue
-                ensure_artifact_installed(name, meta, toml; platform=unused)
+                ensure_artifact_installed(name, meta, toml; platform=unused, io = devnull)
             end
         end
     end

stdlib/LazyArtifacts/test/runtests.jl

@@ -5,8 +5,10 @@ using Test
 
 mktempdir() do tempdir
     LazyArtifacts.Artifacts.with_artifacts_directory(tempdir) do
-        socrates_dir = artifact"socrates"
-        @test isdir(socrates_dir)
+        redirect_stderr(devnull) do
+            socrates_dir = artifact"socrates"
+            @test isdir(socrates_dir)
+        end
         ex = @test_throws ErrorException artifact"HelloWorldC"
         @test startswith(ex.value.msg, "Artifact \"HelloWorldC\" was not installed correctly. ")
     end
@@ -18,10 +20,12 @@ end
     using Test
     mktempdir() do tempdir
         Artifacts.with_artifacts_directory(tempdir) do
-            socrates_dir = @test_logs(
-                    (:warn, "using Pkg instead of using LazyArtifacts is deprecated"),
-                    artifact"socrates")
-            @test isdir(socrates_dir)
+            redirect_stderr(devnull) do
+                socrates_dir = @test_logs(
+                        (:warn, "using Pkg instead of using LazyArtifacts is deprecated"),
+                        artifact"socrates")
+                @test isdir(socrates_dir)
+            end
         end
     end'`,
     dir=@__DIR__)))

stdlib/REPL/test/repl.jl

@@ -751,6 +751,7 @@ fake_repl() do stdin_write, stdout_read, repl
     @test readuntil(stdout_read, "end", keep=true) == "\n\r\e[7C    α=1\n\r\e[7C    β=2\n\r\e[7Cend"
 
     # Test switching repl modes
+    redirect_stdout(devnull) do # to suppress "foo" echoes
     sendrepl2("""\e[200~
             julia> A = 1
             1
@@ -775,6 +776,7 @@ fake_repl() do stdin_write, stdout_read, repl
     wait(c)
     @test Main.A == 1
     @test Main.B == 2
+    end # redirect_stdout
 
     # Close repl
     write(stdin_write, '\x04')

test/backtrace.jl

@@ -183,6 +183,7 @@ let bt, found = false
 end
 
 # issue 28618
+Base.CoreLogging.with_logger(Base.CoreLogging.NullLogger()) do
 let bt, found = false
     @info ""
     bt = backtrace()
@@ -193,6 +194,7 @@ let bt, found = false
     end
     @test found
 end
+end # with_logger
 
 # Syntax error locations appear in backtraces
 let trace = try

test/loading.jl

@@ -737,9 +737,9 @@ Base.set_active_project(saved_active_project)
 @test watcher_counter[] == 3
 
 # issue #28190
-module Foo; import Libdl; end
-import .Foo.Libdl; import Libdl
-@test Foo.Libdl === Libdl
+module Foo28190; import Libdl; end
+import .Foo28190.Libdl; import Libdl
+@test Foo28190.Libdl === Libdl
 
 @testset "include with mapexpr" begin
     let exprs = Any[]

test/misc.jl

@@ -283,6 +283,7 @@ v11801, t11801 = @timed sin(1)
 
 @test names(@__MODULE__, all = true) == names_before_timing
 
+redirect_stdout(devnull) do # suppress time prints
 # Accepted @time argument formats
 @test @time true
 @test @time "message" true
@@ -348,6 +349,9 @@ end
 
 after = Base.cumulative_compile_time_ns_after();
 @test after >= before;
+wait(t1)
+wait(t2)
+end # redirect_stdout
 
 # interactive utilities