Stream: helpdesk (published)

Topic: JET.jl not finding error when run in the tests

view this post on Zulip James Wrigley (Jul 08 2024 at 17:26):

With this module in a package:

module JetDebug

greet() = Base.blah()

end # module JetDebug

JET finds the problem when run in the REPL:

julia> using JET

julia> import JetDebug

julia> report_package(JetDebug)
[toplevel-info] virtualized the context of Main (took 0.022 sec)
[toplevel-info] entered into /home/james/git/scratch/JetDebug/src/JetDebug.jl
[toplevel-info]  exited from /home/james/git/scratch/JetDebug/src/JetDebug.jl (took 0.142 sec)
[toplevel-info] analyzing from top-level definitions (1/1)
[toplevel-info] analyzed 1 top-level definitions (took 2.595 sec)
[ Info: tracking Base
═════ 1 possible error found ═════
┌ greet() @ JetDebug /home/james/git/scratch/JetDebug/src/JetDebug.jl:3
│┌ getproperty(x::Module, f::Symbol) @ Base ./Base.jl:42
││ `Base.blah` is not defined: Base.getglobal(x::Module, f::Symbol)
│└────────────────────

But with this in my runtests.jl:

using JET
using JetDebug

report_package(JetDebug)

It does not find the problem:

Precompiling project for configuration --code-coverage=none --color=yes --check-bounds=yes --warn-overwrite=yes --depwarn=yes --inline=yes --startup-file=no --track-allocation=none...
  ✓ JetDebug
  1 dependency successfully precompiled in 1 seconds. 33 already precompiled.
  1 dependency precompiled but a different version is currently loaded. Restart julia to access the new version
     Testing Running tests...
[toplevel-info] virtualized the context of Main (took 0.026 sec)
[toplevel-info] entered into /home/james/git/scratch/JetDebug/src/JetDebug.jl
[toplevel-info]  exited from /home/james/git/scratch/JetDebug/src/JetDebug.jl (took 0.164 sec)
[toplevel-info] analyzing from top-level definitions (1/1)
[toplevel-info] analyzed 1 top-level definitions (took 3.472 sec)
     Testing JetDebug tests passed

Why is that? :thinking: I see that when run from the REPL it tracks Base, which might have something to do with it. But I don't know why it wouldn't track base when run in the tests.

view this post on Zulip James Wrigley (Jul 08 2024 at 17:43):

Ok, it also fails to find this problem when run in the tests:

module JetDebug

greet() = blah()

end # module JetDebug

So I guess the Base tracking is a red herring.

view this post on Zulip Jesper Stemann Andersen (Aug 08 2024 at 09:15):

I think the explanation is that report_package returns a value that is displayed by the REPL, but when you run
report_package in the tests, this value is not automatically displayed.

You could inspect the returned value to get something similar to the behaviour in the REPL: https://gitlab.com/stemann/julia-gitlab-ci-templates/-/blob/v1.5.0/templates.gitlab-ci.yaml#L185-192

view this post on Zulip James Wrigley (Aug 08 2024 at 10:43):

Thanks, yes I actually made an issue about and it turns out I was dumb :upside_down: https://github.com/aviatesk/JET.jl/issues/646
test_package() is the one I need.

Last updated: Nov 06 2024 at 04:40 UTC