julia> Pkg.test("HTTPClient")
INFO: Computing test dependencies for HTTPClient...
INFO: No packages to install, update or remove
INFO: Testing HTTPClient
ERROR: LoadError: ReadOnlyMemoryError()
in exec_as_multi at U:\Quant\Julia\JuliaPro\v0.4\HTTPClient\src\HTTPC.jl:688
in _put_post at U:\Quant\Julia\JuliaPro\v0.4\HTTPClient\src\HTTPC.jl:499
in put_post at U:\Quant\Julia\JuliaPro\v0.4\HTTPClient\src\HTTPC.jl:469
in post at U:\Quant\Julia\JuliaPro\v0.4\HTTPClient\src\HTTPC.jl:403