Why is the exception not rethrown in logging?

Can anyone explain why the exception is not rethrown here?

We find that this will create something inconsistent in tests. See discussions here: https://github.com/JuliaReinforcementLearning/ReinforcementLearning.jl/pull/263#issuecomment-833566441

For example:

@testset "test" begin
    a = error("abc")
    @info "testing..." a
end

This will result in a report with an error:

Test Summary: | Error  Total
test          |     1      1
ERROR: LoadError: Some tests did not pass: 0 passed, 0 failed, 1 errored, 0 broken.
in expression starting at /mnt/E4E0A9C0E0A998F6/github/test_flux/abc/test/runtests.jl:3
ERROR: Package abc errored during testing

While the following one will not (just the same with the one in our tests):

using Test

@testset "test" begin
    @info "testing..." a = error("abc")
end
     Testing Running tests...
Test Summary: |
test          | No tests
     Testing abc tests passed