Rails core - Nov 2012 - Loading/unloading classes/files in tests

Hi,

I am trying to fix #8167 <https://github.com/rails/rails/issues/8167> and 
as part of that fix I need to write tests to check if my code auto loads 
classes when reading entries from cache.
Now I need to write to the cache before I can load so when writing to the 
cache I do something like SomeClass.new and that loads SomeClass.

now I want to read from the cache but without having SomeClass loaded 
(remember I need to check that when loading from cache SomeClass is loaded).

I already tried the following options:
1.Using load/require and removing constant + removing from $LOADED_FEATURES
2.Using ActiveSupport::Testing::Isolation.run_in_isolation to (try) running 
the dump part in another process (NO_FORK=1 fails and without it
doesn''t do
anything)

I tried looking into autoload tests but it didn''t help.

Thanks,
Uriel


<https://github.com/rails/rails/issues/8167>
$LOADED_FEATURES

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I believe you should be able to test that defining the constant in the test and
in the file (untested):

    # c.rb
    class C; end

    # my_test.rb
    class C; end
    ... store in cache ...
    Object.instance_eval { remove_const(:C) }
    ... load from cache ...

Something like that.

Sent from my iPad

On 12 Nov 2012, at 21:30, Uriel Katz <uriel.katz@gmail.com> wrote:
> Hi,
> 
> I am trying to fix #8167 and as part of that fix I need to write tests to
check if my code auto loads classes when reading entries from cache.
> Now I need to write to the cache before I can load so when writing to the
cache I do something like SomeClass.new and that loads SomeClass.
> 
> now I want to read from the cache but without having SomeClass loaded
(remember I need to check that when loading from cache SomeClass is loaded).
> 
> I already tried the following options:
> 1.Using load/require and removing constant + removing from $LOADED_FEATURES
> 2.Using ActiveSupport::Testing::Isolation.run_in_isolation to (try) running
the dump part in another process (NO_FORK=1 fails and without it
doesn''t do anything)
> 
> I tried looking into autoload tests but it didn''t help.
> 
> Thanks,
> Uriel
> 
> 
> $LOADED_FEATURES
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> You received this message because you are subscribed to the Google Groups
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