I find the process of developing an extension and all the steps extremely puzzling.

So far i have

these files:

– Package.jk

– – Utils.jl

Package is as follows:

```
module Package
include("Utils.jl")
export Utils.MarsagliaRng, Utils.next_u32, Utils.rand
end
```

and Utils as follows:

then runtests.jl is

```
using TestItemRunner
@run_package_tests
```

and UtilsTests.jl:

```
using Test
using Rndmwlk
using Rndmwlk.Utils.MarsagliaRng
using Rndmwlk.Utils.next_u32
using Rndmwlk.Utils.rand
@testitem "MarsagliaRng_nextu32" begin
# Test for specific seed and expected results
rng = MarsagliaRng(UInt8.([77, 0, 0, 0])) # Seed = 77
@test next_u32(rng) == 863531084
@test next_u32(rng) == 2082884757
@test next_u32(rng) == 788188464
@test next_u32(rng) == 951323774
@test next_u32(rng) == 744852019
# Reset seed and test again
rng = MarsagliaRng(UInt8.([77, 0, 0, 0])) # Seed = 77
@test next_u32(rng) == 863531084
@test next_u32(rng) == 2082884757
@test next_u32(rng) == 788188464
@test next_u32(rng) == 951323774
@test next_u32(rng) == 744852019
# Test for seed 1
rng = MarsagliaRng(UInt8.([1, 0, 0, 0])) # Seed = 1
@test next_u32(rng) == 1304893148
@test next_u32(rng) == 840426891
@test next_u32(rng) == 2480088888
@test next_u32(rng) == 2020221409
@test next_u32(rng) == 2766137397
end
@tesitem "Uniform Distribution Random Number Generation Tests" begin
#Uniform distribution with seed 33
rng = MarsagliaRng(UInt8.([33, 0, 0, 0])) # Seed = 33
@test isapprox(rand(rng), 0.68160327; atol=1e-8)
@test isapprox(rand(rng), 0.37011177; atol=1e-8)
@test isapprox(rand(rng), 0.00732552; atol=1e-8)
@test isapprox(rand(rng), 0.53339489; atol=1e-8)
@test isapprox(rand(rng), 0.79831550; atol=1e-8)
#Uniform distribution with seed 1
rng = MarsagliaRng(UInt8.([1, 0, 0, 0])) # Seed = 1
@test isapprox(rand(rng), 0.30381911; atol=1e-8)
@test isapprox(rand(rng), 0.19567713; atol=1e-8)
@test isapprox(rand(rng), 0.57744069; atol=1e-8)
@test isapprox(rand(rng), 0.47036945; atol=1e-8)
@test isapprox(rand(rng), 0.64404155; atol=1e-8)
#Repeating tests for seed 33 to ensure repeatability
rng = MarsagliaRng(UInt8.([33, 0, 0, 0])) # Seed = 33, repeat to ensure repeatability
@test isapprox(rand(rng), 0.68160327; atol=1e-8)
@test isapprox(rand(rng), 0.37011177; atol=1e-8)
@test isapprox(rand(rng), 0.00732552; atol=1e-8)
@test isapprox(rand(rng), 0.53339489; atol=1e-8)
@test isapprox(rand(rng), 0.79831550; atol=1e-8)
end
```

resulting in the most cryptic error message ever:

`ERROR: LoadError: syntax: "module" at Package.jl:1 expected "end", got "."`

So far its been a few hours trying to understand what’s the differnece between `actIVATE .`

and `dev .`

how it all plays out with VsCode, VsCode’s test runner vs Julia native and i think i almost have it in some kind of working state but this error makes no sense. Original package name was `rndmwlk`

so there might be some refs to it…

Also is there any way to get around having to export every single thing twice or some kind of public private macro? I dont see any value of not having the visibility defined where the symbol is defined but instead having to double export. FYI if i dont export from Package.jl using the FQN in the tests still results in missing symbol…