Run each failing test 1000x to see if we can reproduce consistently

test/failing_tests.jl

@@ -0,0 +1,113 @@
+using HDF5, Test
+
+@testset "h5a_iterate failing" begin
+    for i in 1:1000
+        filename = tempname()
+        f = h5open(filename, "w")
+
+        write_attribute(f, "a", 1)
+        write_attribute(f, "b", 2)
+
+        # iterate over attributes
+        names = String[]
+        @test HDF5.API.h5a_iterate(
+            f, HDF5.API.H5_INDEX_NAME, HDF5.API.H5_ITER_INC
+        ) do loc, name, info
+            push!(names, unsafe_string(name))
+            return false
+        end == 2
+        @test names == ["a", "b"]
+
+        # iterate over attributes in reverse
+        names = String[]
+        @test HDF5.API.h5a_iterate(
+            f, HDF5.API.H5_INDEX_NAME, HDF5.API.H5_ITER_DEC
+        ) do loc, name, info
+            push!(names, unsafe_string(name))
+            return false
+        end == 2
+        @test names == ["b", "a"]
+
+        # only iterate once
+        names = String[]
+        @test HDF5.API.h5a_iterate(
+            f, HDF5.API.H5_INDEX_NAME, HDF5.API.H5_ITER_INC
+        ) do loc, name, info
+            push!(names, unsafe_string(name))
+            return true
+        end == 1
+        @test names == ["a"]
+
+        @test_throws AssertionError HDF5.API.h5a_iterate(
+            f, HDF5.API.H5_INDEX_NAME, HDF5.API.H5_ITER_INC
+        ) do loc, name, info
+            @assert false
+        end
+
+        # HDF5 error
+        @test_throws HDF5.API.H5Error HDF5.API.h5a_iterate(
+            f, HDF5.API.H5_INDEX_NAME, HDF5.API.H5_ITER_INC
+        ) do loc, name, info
+            return -1
+        end
+
+        close(f)
+    end
+end
+
+@testset "h5l_iterate failing" begin
+    for i in 1:1000
+        filename = tempname()
+        f = h5open(filename, "w")
+
+        create_group(f, "a")
+        create_group(f, "b")
+
+        # iterate over groups
+        names = String[]
+        @test HDF5.API.h5l_iterate(
+            f, HDF5.API.H5_INDEX_NAME, HDF5.API.H5_ITER_INC
+        ) do loc, name, info
+            push!(names, unsafe_string(name))
+            return false
+        end == 2
+        @test names == ["a", "b"]
+
+        # iterate over attributes in reverse
+        names = String[]
+        @test HDF5.API.h5l_iterate(
+            f, HDF5.API.H5_INDEX_NAME, HDF5.API.H5_ITER_DEC
+        ) do loc, name, info
+            push!(names, unsafe_string(name))
+            return false
+        end == 2
+        @test names == ["b", "a"]
+
+        # only iterate once
+        names = String[]
+        @test HDF5.API.h5l_iterate(
+            f, HDF5.API.H5_INDEX_NAME, HDF5.API.H5_ITER_INC
+        ) do loc, name, info
+            push!(names, unsafe_string(name))
+            return true
+        end == 1
+        @test names == ["a"]
+
+        # HDF5 error
+        @test_throws HDF5.API.H5Error HDF5.API.h5l_iterate(
+            f, HDF5.API.H5_INDEX_NAME, HDF5.API.H5_ITER_INC
+        ) do loc, name, info
+            return -1
+        end
+
+        # Julia error
+        @test_throws AssertionError HDF5.API.h5l_iterate(
+            f, HDF5.API.H5_INDEX_NAME, HDF5.API.H5_ITER_INC
+        ) do loc, name, info
+            @assert false
+        end
+
+        close(f)
+    end
+end
+

test/runtests.jl

@@ -96,6 +96,8 @@ end
         include("ros3.jl")
     end
 
+    include("failing_tests.jl")
+
     # Clean up after all resources
     HDF5.API.h5_close()
 end