[Generator] Add support of deepObject style in query params

[kstefanou52]

Motivation

The generator changes for:
apple/swift-openapi-generator

Depends on apple/swift-openapi-runtime#100
landing first and getting released, and the version dependency being bumped here.

Modifications

Added deepObject style to serializer & parser in order to support nested keys on query parameters.

Result

Support nested keys on query parameters.

Test Plan

Adapted snippet tests (SnippetBasedReferenceTests)

[simonjbeaumont]

Thanks @kstefanou52 for taking the time to tackle this. We'll park this PR review until we land the runtime PR.

[czechboy0]

@kstefanou52 Ok please bump the runtime dependency to 1.4.0 in Package.swift and you should be able to finish the generator changes.

[kstefanou52]

@czechboy0 Done! I have created some tests, but I'm not sure if you would like to add more. Could you please suggest any additional tests you think might be necessary? Thank you!

[czechboy0]

One code change suggested, and regarding the extra tests - you're right 🙂

Start by adding a similar parameter like you did in the snippet tests, but this time to petstore.yaml, which makes it available in generated form in PetstoreConsumerTests. There, please extend one client and one server unit test to verify that the serialization/deserialization is correctly piped through all the way. The relevant test classes are Test_Client and Test_Server.

[simonjbeaumont]

Just checking in on this one. Is it ready for review again? (Thanks for the effort here!)

[kstefanou52]

Hi @simonjbeaumont! Unfortunately some tests are failing, I'll work on this on weekend and I'll let you know. Cheers!