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Transaction factory (#2481)
* Fix typos * Add transaction factory `cargo run -- purge-chain -y --chain dev && cargo run -- --dev --transaction-factory 10` * Fix comment and remove build deps * Move crate to test-utils * Switch from flag to subcommand `cargo run -- factory --dev --num 5` * Decouple factory from node specifics * Introduce different manufacturing modes * Remove unrelated changes * Update Cargo.lock * Use SelectChain to fetch best block * Improve expect proof * Panic if factory executed with unsupported chain spec * Link ToDo comments to follow-up ticket * Address comments and improve style * Remove unused dependencies * Fix indent level * Replace naked unwrap * Update node/cli/src/factory_impl.rs * Fix typo * Use inherent_extrinsics instead of timestamp * Generalize factory and remove saturated conversions * Format imports * Make it clearer that database needs to be empty * Ensure factory settings * Apply suggestions from code review Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com> * Update test-utils/transaction-factory/src/lib.rs Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com> * Fix match guard syntax * Simplify import, remove empty line * Update node/cli/Cargo.toml * Update lockfile
This commit is contained in:
Michael Müller
committed by
Gavin Wood
Gavin Wood
parent
811124234d
commit
a706d994cb
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// Copyright 2019 Parity Technologies (UK) Ltd.
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// This file is part of Substrate.
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// Substrate is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Substrate is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Substrate. If not, see <http://www.gnu.org/licenses/>.
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/// This module implements the `MasterToNToM` mode:
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///
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/// Manufacture `num` transactions from the master account to `num`
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/// randomly created accounts. From each of these randomly created
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/// accounts manufacture a transaction to another randomly created
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/// account.
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/// Repeat this round `rounds` times. If `rounds` = 1 the behavior
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/// is the same as `MasterToN`.
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///
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/// A -> B
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/// A -> C
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/// A -> D
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/// ... x `num`
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///
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/// B -> E
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/// C -> F
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/// D -> G
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/// ...
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/// E -> H
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/// F -> I
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/// G -> J
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/// ...
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/// ... x `rounds`
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use std::sync::Arc;
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use log::info;
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use client::block_builder::api::BlockBuilder;
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use client::runtime_api::ConstructRuntimeApi;
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use sr_primitives::generic::BlockId;
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use sr_primitives::traits::{Block as BlockT, ProvideRuntimeApi, One, Zero};
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use substrate_service::{
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FactoryBlock, FullClient, ServiceFactory, ComponentClient, FullComponents
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};
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use crate::{RuntimeAdapter, create_block};
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pub fn next<F, RA>(
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factory_state: &mut RA,
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client: &Arc<ComponentClient<FullComponents<F>>>,
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prior_block_hash: <RA::Block as BlockT>::Hash,
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prior_block_id: BlockId<F::Block>,
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) -> Option<<F as ServiceFactory>::Block>
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where
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F: ServiceFactory,
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F::RuntimeApi: ConstructRuntimeApi<FactoryBlock<F>, FullClient<F>>,
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FullClient<F>: ProvideRuntimeApi,
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<FullClient<F> as ProvideRuntimeApi>::Api: BlockBuilder<FactoryBlock<F>>,
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RA: RuntimeAdapter,
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{
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let total = factory_state.start_number() + factory_state.num() * factory_state.rounds();
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if factory_state.block_no() >= total || factory_state.round() >= factory_state.rounds() {
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return None;
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}
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info!(
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"Round {}: Creating {} transactions in total, {} per round. {} rounds in total.",
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factory_state.round() + RA::Number::one(),
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factory_state.num() * factory_state.rounds(),
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factory_state.num(),
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factory_state.rounds(),
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);
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let from = from::<RA>(factory_state);
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let seed = factory_state.start_number() + factory_state.block_no();
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let to = RA::gen_random_account_id(&seed);
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let mut amount;
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if factory_state.round() == RA::Number::zero() {
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amount = RA::minimum_balance() * factory_state.rounds();
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} else {
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let rounds_left = factory_state.rounds() - factory_state.round();
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amount = RA::minimum_balance() * rounds_left;
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};
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let transfer = factory_state.transfer_extrinsic(
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&from.0,
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&from.1,
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&to,
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&amount,
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&prior_block_hash,
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);
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let inherents = factory_state.inherent_extrinsics();
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let inherents = client.runtime_api().inherent_extrinsics(&prior_block_id, inherents)
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.expect("Failed to create inherent extrinsics");
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let block = create_block::<F, RA>(&client, transfer, inherents);
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info!(
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"Created block {} with hash {}. Transferring {} from {} to {}.",
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factory_state.block_no() + RA::Number::one(),
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prior_block_hash,
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amount,
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from.0,
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to
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);
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factory_state.set_block_no(factory_state.block_no() + RA::Number::one());
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let new_round = factory_state.block_no() > RA::Number::zero()
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&& factory_state.block_no() % factory_state.num() == RA::Number::zero();
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if new_round {
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factory_state.set_round(factory_state.round() + RA::Number::one());
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factory_state.set_block_in_round(RA::Number::zero());
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} else {
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factory_state.set_block_in_round(factory_state.block_in_round() + RA::Number::one());
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}
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Some(block)
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}
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/// Return the account which received tokens at this point in the previous round.
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fn from<RA>(
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factory_state: &mut RA
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) -> (<RA as RuntimeAdapter>::AccountId, <RA as RuntimeAdapter>::Secret)
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where RA: RuntimeAdapter
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{
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let is_first_round = factory_state.round() == RA::Number::zero();
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match is_first_round {
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true => {
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// first round always uses master account
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(RA::master_account_id(), RA::master_account_secret())
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},
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_ => {
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// the account to which was sent in the last round
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let is_round_one = factory_state.round() == RA::Number::one();
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let seed = match is_round_one {
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true => factory_state.start_number() + factory_state.block_in_round(),
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_ => {
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let block_no_in_prior_round =
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factory_state.num() * (factory_state.round() - RA::Number::one()) + factory_state.block_in_round();
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factory_state.start_number() + block_no_in_prior_round
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}
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};
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(RA::gen_random_account_id(&seed), RA::gen_random_account_secret(&seed))
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},
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}
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}
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