[TASK] Integrate the dkg-testing-harness with the runtime directly

[drewstone]

Overview

The test harness doesn't touch a mocked runtime. We want to have the ability to test the entire harness in a mocked environment so we can continue to push our simulations into as real a world as possible (changing the state of the chain, etc.)

The harness should be able to execute a simulation (or a simulation should be able to execute the harness). This would allow us to write unit tests for the entire system.

new_test_ext(|| {
	// Run harness
	harness.start().run_for(30 sessions);
	// State tests
	DKGMetadata::get(...)
})

Checklist

• Investigate and spec a potential integration path
• Break down into an implementation
• Write test cases that show utility of such a tool.