Prior to this commit, WebFlux had Protobuf codecs for managing the
`Message`/`"application/x-protobuf"` encoding and decoding.
The `com.google.protobuf:protobuf-java-util` library has additional
support for JSON (de)serialization, but this is not supported by
existing codecs.
This commit adds the new `ProtobufJsonEncode` and `ProtobufJsonDecoder`
classes that support this use case. Note, the `ProtobufJsonDecoder` has
a significant limitation: it cannot decode JSON arrays as
`Flux<Message>` because there is no available non-blocking parser able
to tokenize JSON arrays into streams of `Databuffer`. Instead,
applications should decode to `Mono<List<Message>>` which causes
additional buffering but is properly supported.
Closes gh-25457
This commit improves the handling of asynchronous requests by offering
a way to opt-in for the raw async result. This provides first class
support for asserting a request that might still be in process as well
as the asyncResult, if necessary.
See gh-33040
This commit makes asynchronous requests first class by providing a
MvcTestResult that represents the final, completed, state of a request
by default. Previously, the result was an intermediate step that may
require an ASYNC dispatch to be fully usable. Now it is de facto
immutable.
To make things a bit more explicit, an `.exchange(Duration)` method has
been added to provide a dedicated time to wait. The default applies a
default timeout that is consistent with what MVcResult#getAsyncResult
does.
Given that we apply the ASYNC dispatch automatically, the intermediate
response is no longer available by default. As a result, the asyncResult
is not available for assertions.
As always, it is possible to use plain MockMvc by using the `perform`
method that takes the regular RequestBuilder as an input. When this
method is invoked, no asynchronous handling is done.
Closes gh-33040
This commit simplifies the package private constructors on those two
builders now that the URI can be specified by dedicated builder methods.
Closes gh-33062
File uploads with MockMvc require a separate
MockHttpServletRequestBuilder implementation. This commit applies the
same change to support AssertJ on this builder, but for the multipart
version.
Any request builder can now use `multipart()` to "down cast" to a
dedicated multipart request builder that contains the settings
configured thus far.
Closes gh-33027
This commit simplifies assertions on MockMvc requests that have failed
to process. A now general hasFailed/doesNotHaveFailed/failure provides
the necessary to assert the exception.
Any attempt to access anything from the result with an unresolved
exception still fails as before.
Closes gh-33060
This commit changes the use of HttpSessionRequiredException in
ModelFactory::initModel to an IllegalStateException, because the former
extends ServletException and cannot be used in WebFlux.
Closes gh-33043
