feat: Add flutter integration driver commands and tests

[MummanaSubramanya]

Addressing AppiumTestDistribution/appium-flutter-integration-driver#52

[KazuCocoa]

Could you add tests in unit test as possible instead of functional test?
https://github.com/appium/python-client/tree/master/test/unit

As a client, what http request should be sent is important but it does not need to test driver side. Driver's response can be a mock.

Existing functional tests include tests for appium project's drivers themselves. They would be removed as not necessary for client tests.

[KazuCocoa]

Could you use flutter_intergation namespace or flutter/flutter_integration?

[KazuCocoa]

I left some comments.

• convert tests to unit test to focus on each client method's input/output (fast and less flakiness as client)
  • Existing unit test should help to see how to check the http request's input/output as a client
• name space
• some code improvement

Thank you for the contribution, btw :)

[MummanaSubramanya]

Could you use flutter_intergation namespace or flutter/flutter_integration?

updated

[MummanaSubramanya]

@KazuCocoa @mykola-mokhnach Thank you very much for your review. I have addressed all the comments and added both unit tests and end-to-end tests. I'm happy to report that all tests have passed.

[mykola-mokhnach]

thanks @MummanaSubramanya

[Sanmejie]

The three methods provided in the diagram do not use the flutter integration driver commands feature, is there any other recommended method to install?

update
I successfully installed it by replacing the .py files

[KazuCocoa]

It is not released yet. I'll release this tonight. (for via pypi)

[KazuCocoa]

4.2.0 is available now