The ModuleSerializer does not support serializing anonymous classes
because when we try to deserialize the anonymous class, it wouldn't
know which class to use (since class name is nil).
For this reason, ModuleSerialzier now raises an error if the class
name is nil. Previously, ModuleSerializer would raise an `undefined
method `constantize' for nil:NilClass` error during deserialization.
It's not clear why the deserialization failed from the error.
In this commit, we raise an explicit error when trying to serialize
an anonymous class indicating this behaviour is not supported.
This commit restores the test deleted in
cd22ecbfc2
Active Job should not test things about autoloading, this would
belong to the railties test suite probably. However, there, it feels
a bit too distant from here.
Imperfect, but on a second thought I believe this trade-off is better.
I found an unexpected use of assertion in the block of `assert_raise`
when I implemented https://github.com/rubocop/rubocop-minitest/pull/137.
It is expected to be asserted after an exception is raised in
`assert_raise` block, but in actually it is not asserted after an
exception is raised. Therefore, this PR removes or updates assertions
that have not been asserted after an exception has raised.
This PR will add `rubocop-minitest` and enable
`Minitest/UnreachableAssertion` cop to able similar auto-detection,
but will remove `rubocop-minitest` from this PR if you don't like it.
* Remove spring as a default installation option
Faster computers have meant that most apps won't see a big benefit from Spring on small to moderate size apps. Thus the pain of dealing with the occasional spring issue is no longer warranted by default.
* Errant end
* No longer an option
* Additional spring removals
* Pointer to docs is enough
AJ infers adapater class names, and loads them. How are those classes made
available to AJ is a user's concern.
Perhaps they loaded the adapter with require, perhaps they have the class in the
autoload_once_paths. It does not matter, it is the user responsibility to make
the class available _somehow_, and AJ can assume that.
In some applications, some classes of errors may be raised during the
execution of a job which the developer would want to retry forever.
These classes of errors would most likely be infrastructure problems that
the developer knows will be resolved eventually but may take a variable
amount of time or errors where due to application business logic, there
could be something temporarily blocking the job from executing, like a
resource that is needed for the job being locked for a lengthy amount of
time.
While an arbitrarily large number of attempts could previously be passed,
this is inexpressive as sometimes the developer may just need the job to
continue to be retried until it eventually succeeds. Without this,
developers would need to include additional code to handle the situation
where the job eventually fails its attempts limit and has to be re-enqueued
manually.
As with many things this should be used with caution and only for errors
that the developer knows will definitely eventually be resolved, allowing
the job to continue.
[Daniel Morton + Rafael Mendonça França]
Follow up to https://github.com/rails/rails/pull/37313
- Adds regression tests
- Logs a warning in cases where assertions are nested in a way that's likely to be confusing
RDoc Markup does not support backticks the way Markdown does to mark up
inline code. Additionally, `<tt>` must be used to mark up inline code
that includes spaces or certain punctuation characters (e.g. quotes).
There is presently no clean way of telling a caller of `perform_later`
the reason why a job failed to enqueue. When the job is enqueued
successfully, the job object itself is returned, but when the job can
not be enqueued, only `false` is returned. This does not allow callers
to distinguish between classes of failures.
One important class of failures is when the job backend experiences a
network partition when communicating with its underlying datastore. It
is entirely possible for that network partition to recover and as such,
code attempting to enqueue a job may wish to take action to reenqueue
that job after a brief delay. This is distinguished from the class of
failures where due a business rule defined in a callback in the
application, a job fails to enqueue and should not be retried.
This PR changes the following:
- Allows a block to be passed to the `perform_later` method. After the
`enqueue` method is executed, but before the result is returned, the
job will be yielded to the block. This allows the code invoking the
`perform_later` method to inspect the job object, even in failure
scenarios.
- Adds an exception `EnqueueError` which job adapters can raise if they
detect a problem specific to their underlying implementation or
infrastructure during the enqueue process.
- Adds two properties to the job base class: `successfully_enqueued` and
`enqueue_error`. `enqueue_error` will be populated by the `enqueue`
method if it rescues an `EnqueueError` raised by the job backend.
`successfully_enqueued` will be true if the job is not rejected by
callbacks and does not cause the job backend to raise an
`EnqueueError` and will be `false` otherwise.
This will allow developers to do something like the following:
MyJob.perform_later do |job|
unless job.successfully_enqueued?
if job.enqueue_error&.message == "Redis was unavailable"
# invoke some code that will retry the job after a delay
end
end
end
Use inheritance to keep the behavior in the right modules.
The order of Instrumentation and Logging had to change to be
flipped to keep the current behavior.
Before this commit, only StandardError exceptions can be handled by
rescue_from handlers.
This changes the rescue clause to catch all Exception objects, allowing
rescue handlers to be defined for Exception classes not inheriting from
StandardError.
This means that rescue handlers that are rescuing Exceptions outside of
StandardError exceptions may rescue exceptions that were not being
rescued before this change.
Co-authored-by: Adrianna Chang <adrianna.chang@shopify.com>
Veerpal Brar