[discussion] How can we refactor platform services classes to make them easier to test using mocking frameworks

[spoorthipujariadobe]

In many public service classes like NetworkService, we initialize a lot of dependencies inside the class, on different thread, which makes it difficult to mock them while writing tests. We would end up having to add dummy constructor for testing purpose only sometimes to make it testable. Can we find a more generic pattern for dependency injection like using factory classes, which provide dependencies and can be replaced with mocks during testing?