Merge branch 'main' into mg/serial-test

Author: giordano

test/runtests.jl

@@ -1028,7 +1028,15 @@ end
         # We'll use jobs + 1 workers because one will crash.
         @test ParallelTestRunner.ID_COUNTER[] == old_id_counter + jobs + 1
     end
+end
 
+# This testset should always be the last one, don't add anything after this.
+# We want to make sure there are no running workers at the end of the tests.
+@testset "no workers running" begin
+    children = _count_child_pids()
+    if children >= 0
+        @test children == 0
+    end
 end
 
 end

test/utils.jl

@@ -14,7 +14,7 @@ function _count_child_pids(pid = getpid())
         # because it's spawned by the current process, in that case we subtract
         # one to always exclude it, otherwise if we're getting the number of
         # children of another process we start from 0.
-        count = pid == getpid() : -1 : 0
+        count = pid == getpid() ? -1 : 0
         for line in lines
             m = match(r" *(\d+) +(\d+)", line)
             if !isnothing(m)