erigon-pulse/cmd/devnet/scenarios/context.go

package scenarios

import "context"

func stepRunners(ctx context.Context) []*stepRunner {
	return nil
}
Devnet scenarios (#7723) This is an update to the devnet code which introduces the concept of configurable scenarios. This replaces the previous hard coded execution function. The intention is that now both the network and the operations to run on the network can be described in a data structure which is configurable and composable. The operating model is to create a network and then ask it to run scenarios: ```go network.Run( runCtx, scenarios.Scenario{ Name: "all", Steps: []scenarios.Step{ &scenarios.Step{Text: "InitSubscriptions", Args: []any{[]requests.SubMethod{requests.Methods.ETHNewHeads}}}, &scenarios.Step{Text: "PingErigonRpc"}, &scenarios.Step{Text: "CheckTxPoolContent", Args: []any{0, 0, 0}}, &scenarios.Step{Text: "SendTxWithDynamicFee", Args: []any{recipientAddress, services.DevAddress, sendValue}}, &scenarios.Step{Text: "AwaitBlocks", Args: []any{2 time.Second}}, }, }) ``` The steps here refer to step handlers which can be defined as follows: ```go func init() { scenarios.MustRegisterStepHandlers( scenarios.StepHandler(GetBalance), ) } func GetBalance(ctx context.Context, addr string, blockNum requests.BlockNumber, checkBal uint64) { ... ``` This commit is an initial implementation of the scenario running - which is working, but will need to be enhanced to make it more usable & developable. The current version of the code is working and has been tested with the dev network, and bor withoutheimdall. There is a multi miner bor heimdall configuration but this is yet to be tested. Note that by default the scenario runner picks nodes at random on the network to send transactions to. this causes the dev network to run very slowly as it seems to take a long time to include transactions where the nonce is incremented across nodes. It seems to take a long time for the nonce to catch up in the transaction pool processing. This is yet to be investigated. 2023-06-14 11:35:22 +00:00			`package scenarios`

			`import "context"`

			`func stepRunners(ctx context.Context) []*stepRunner {`
			`return nil`
			`}`