fix testset printing and add test (#20232)

* bring back testset printing

* fix nested testset printing

Author: KristofferC

base/test.jl

@@ -730,7 +730,7 @@ function print_counts(ts::DefaultTestSet, depth, align,
     subtotal = passes + fails + errors + broken + c_passes + c_fails + c_errors + c_broken
     # Print test set header, with an alignment that ensures all
     # the test results appear above each other
-    print(rpad(string(lpad("  ",depth), ts.description), align, " "), " | ")
+    print(rpad(string("  "^depth, ts.description), align, " "), " | ")
 
     np = passes + c_passes
     if np > 0

test/test.jl

@@ -426,3 +426,33 @@ let io = IOBuffer()
     @test contains(str, "msg")
     @test !contains(str, "backtrace()")
 end
+
+msg = readstring(ignorestatus(`$(Base.julia_cmd()) --startup-file=no --color=no -e '
+using Base.Test
+
+foo(x) = length(x)^2
+
+@testset "Foo Tests" begin
+    @testset "Animals" begin
+        @testset "Felines" begin
+            @test foo("cat") == 9
+        end
+        @testset "Canines" begin
+            @test foo("dog") == 11
+        end
+    end
+    @testset "Arrays" begin
+        @test foo(zeros(2)) == 4
+        @test foo(ones(4)) == 15
+    end
+end'`))
+
+@test contains(msg,
+"""
+Test Summary: | Pass  Fail  Total
+Foo Tests     |    2     2      4
+  Animals     |    1     1      2
+    Felines   |    1            1
+    Canines   |          1      1
+  Arrays      |    1     1      2
+""")