Integration test Setup Nodes and Add DON [CCIP-2810]

[asoliman92]

Setting up a basic test that have basic OCR3 Nodes. Each Node can access 3 EVM chains that are created and connected to each others. Check PR for more details on creating the chains and connecting them.

As JobSpecs for CCIP are not ready. The main goal of this PR is to have the nodes and AddDon on capability registry for these nodes for each chain. Once JobSpec is ready we'll be able to test that the nodes picks up the changes and deploys the plugins, start sending, receiving,..etc.

[asoliman92]

Moving the file up one directory, no need to review changes.

[makramkd]

I'm not sure this'll work, tickCancel() will be called likely before the goroutine is scheduled. You can keep it in the Cleanup though.

[makramkd]

I don't even think you need this extra ctx, you can just watch Done() on testutils.Context(t)

[dimkouv]

Hmm there might be something interesting.

func TestFlk(t *testing.T) {
	for i := 0; i < 20; i++ {
		TestIntegration_OCR3Nodes(t)
	}
}

Can you try to see if this ^ fails?

I believe there's some db resource that needs to be cleaned up after the test finishes.

[asoliman92]

	for i := 0; i < 20; i++ {
		TestIntegration_OCR3Nodes(t)
	}
}

I tested 100 times and it passed them all. Do you get any issues locally?