add issue1179 test

test/apilock.jl

@@ -0,0 +1,10 @@
+using Pkg, Test
+@testset "issue1179" begin
+    @test try
+        run(`$(Base.julia_cmd()) --project=$(dirname(Pkg.project().path)) -t 6 $(joinpath(@__DIR__, "issue1179.jl"))`)
+        true
+    catch err
+        @info err
+        false
+    end
+end

test/issue1179.jl

@@ -0,0 +1,13 @@
+using HDF5
+
+T = ComplexF64
+# T = Float64 # OK
+sizes = (100, 100, 100)
+Threads.@threads for i in 1:Threads.nthreads()
+    h5open("file$i.hdf5", "w") do h5
+        d = create_dataset(h5, "rand", T, sizes)
+        for n in 1:sizes[3]
+            d[:,:,n] = rand(T, sizes[1:2])
+        end
+    end
+end

test/runtests.jl

@@ -92,6 +92,8 @@ end
         @debug "virtual datasets"
         include("virtual_dataset.jl")
     end
+    @debug "api lock"
+    include("apilock.jl")
 
     # basic MPI tests, for actual parallel tests we need to run in MPI mode
     include("mpio.jl")