allow testsets without a description

src/ReTest.jl

@@ -4,7 +4,7 @@ export retest, @testset
 
 using Distributed
 using Base.Threads: nthreads
-using Random: shuffle!
+using Random: shuffle!, randstring
 
 # from Test:
 export Test,
@@ -103,7 +103,6 @@ function parse_ts(source, mod, args::Tuple, parent=nothing)
             error("unsupported @testset")
         end
     end
-    @isdefined(desc) || error("@testset requires a description")
 
     body = args[end]
     isa(body, Expr) || error("Expected begin/end block or for loop as argument to @testset")
@@ -117,10 +116,20 @@ function parse_ts(source, mod, args::Tuple, parent=nothing)
             @assert all(arg -> Meta.isexpr(arg, :(=)), loops.args)
             loops = loops.args
         end
-
+        if !@isdefined(desc)
+            v = loops[1].args[1]
+            desc = Expr(:string, "anonym $(randstring('0':'9')): $v = ", v)
+            for l = loops[2:end]
+                v = l.args[1]
+                push!(desc.args, ", $v = ", v)
+            end
+        end
     elseif body.head === :block
         loops = nothing
         tsbody = body
+        if !@isdefined(desc)
+            desc = "anonym $(randstring('0':'9'))"
+        end
     else
         error("Expected begin/end block or for loop as argument to @testset")
     end

test/runtests.jl

@@ -373,6 +373,22 @@ empty!(MultiLoops.RUN)
 retest(MultiLoops, "1 1")
 @test MultiLoops.RUN == [(1, 1)]
 
+module Anonym
+using ReTest
+
+RUN = []
+
+@testset for x=1:2
+    @testset begin
+        @test true
+        push!(RUN, x)
+    end
+end
+end
+
+retest(Anonym)
+@test Anonym.RUN == [1, 2]
+
 ### Failing ##################################################################
 
 module Failing