rather than calling methods on the controller. We should test the
values returned by the controller rather than assuming that the
internals are implemented in a certain way.
I'm making this change so that I can construct response objects that
*don't* have the default headers applied. For example, I would like to
construct a response object from the return value of a controller.
If you need to construct a response object with the default headers,
then please use the alternate constructor:
`ActionDispatch::Response.create`
It doesn't make sense to access the response object before a request is
made (how was a response object created without making a request?) This
commit splits testing default headers and default header mutation tests
and removes access to the pre-request response object.
When the response object is `to_a`'d, that means it's been written to
the socket. It doesn't make sense to mutate the response object after
it's been written (and this may raise an exception in the future).
Changes `Mimes` to compose a set rather than inherit from array. With
this change we don't need to define as many methods, so ISEQ memory is
saved. Also it is clear which methods break the set cache.
We don't want to manage a list of constants on `Mime::`. Managing
constants is strange because it will break method caches, not to mention
looking up by a constant could cause troubles. For example suppose
there is a top level constant `HTML`, but nobody registers the HTML mime
type and someone accesses `Mime::HTML`. Instead of getting an error
about how the mime type doesn't exist, instead you'll get the top level
constant.
So, instead of directly accessing the constants, change this:
Mime::HTML
To this:
Mime::Type[:HTML]
As both `redirect_to_nil` and `redirect_to_params` are raising same `ActionController::ActionControllerError` so it’s good to assert error messages as well
we don't actually need a param parser middleware instance since the
request object will take care of parsing parameters for us. For now,
we'll just configure the parameter parsers on the request in this class.
The middleware stack is a singleton in the application (one instance is
shared for the entire application) which means that there was only one
opportunity to set the parameter parsers. Since there is only one set
of parameter parsers in an app, lets just configure them on the request
class (since that is where they are used).
we need to be more specific about exception handling when dealing with
the parse strategies. The calls to `return yield` can also raise an
exception, but we don't want to handle that in *this* code.
This changes the renderer class to store the controller and defaults as
an instance variable rather than allocating a new class. You can create
a new renderer with an new env by calling `Renderer#new` or use new
defaults by calling `Renderer#with_defaults` and saving the return value
somewhere.
Also I want to keep the `env` private since I would like to change the
keys in the future. This commit only translates particular keys that
the user requested.
