Why

In order to better document the API and demonstrate usage, there should be a reference implementation of an extension.

Description

Ideally the reference extension should demonstrate:

• Extension callbacks (IBefore*Callback and/or IAfter*Callback)
• Parameter resolution (IParameterResolver)
• Contextual data store use with suite-level fallback
• Practical application; the extension should actually be useful

The SceneRunnerExtension meets all of these criteria:

• Must implement IBeforeEachCallback and IAfterEachCallback to create and dispose of scene runner
• Must implement IParameterResolver to inject the scene runner and scene node.
• Will use IParameterStore to store the scene runner before each test runs, retrieve it when injecting parameters, and dispose of it after each test.
• Reduces common test boilerplate and as such had real-world applications

Acceptance criteria

• SceneRunnerExtension implemented
• Test [RegisterExtension] on fields
• Test [ExtendWith<T>] on classes
• Test injected ISceneRunner and scene
• Test mixed [TestCase] and injected parameters