From d3107b56cbef1f05baddb64880c3e97d7eda87a4 Mon Sep 17 00:00:00 2001 From: Mission Liao Date: Wed, 15 Aug 2018 23:10:21 +0800 Subject: test: add test.Scheduler (#58) When simulating execution of core.Consensus by passing packets through golang-channel or real-socket, we need to utilize time.Sleep and time.Now to simulate the required network/proposing latency. It's problematic when we try to test a simulation with long network latency. Instead, Scheduler would try to execute the event with minimum timestamp, thus time.Sleep is replaced with Scheduler.nextTick, and time.Now is replaced with Event.Time. Changes: - Add test.Scheduler. - Add test.Stopper interface to provide encapsulate different stop conditions for scheduler. - Add a reference implementation for test.Stopper, it will stop scheduler when all validators confirmed X blocks proposed from themselves. - Add a test scenario on core.Consensus that all validators are not byzantine. --- core/test/interface.go | 29 ++++++++++++++++++++++++----- 1 file changed, 24 insertions(+), 5 deletions(-) (limited to 'core/test/interface.go') diff --git a/core/test/interface.go b/core/test/interface.go index 6c7b22e..0e963fd 100644 --- a/core/test/interface.go +++ b/core/test/interface.go @@ -1,13 +1,13 @@ // Copyright 2018 The dexon-consensus-core Authors // This file is part of the dexon-consensus-core library. // -// The dexon-consensus-core library is free software: you can redistribute it and/or -// modify it under the terms of the GNU Lesser General Public License as +// The dexon-consensus-core library is free software: you can redistribute it +// and/or modify it under the terms of the GNU Lesser General Public License as // published by the Free Software Foundation, either version 3 of the License, // or (at your option) any later version. // -// The dexon-consensus-core library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of +// The dexon-consensus-core library is distributed in the hope that it will be +// useful, but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU Lesser General Public License for more details. // @@ -17,7 +17,10 @@ package test -import "github.com/dexon-foundation/dexon-consensus-core/blockdb" +import ( + "github.com/dexon-foundation/dexon-consensus-core/blockdb" + "github.com/dexon-foundation/dexon-consensus-core/core/types" +) // Revealer defines the interface to reveal a group // of pre-generated blocks. @@ -27,3 +30,19 @@ type Revealer interface { // Reset the revealing. Reset() } + +// Stopper defines an interface for Scheduler to tell when to stop execution. +type Stopper interface { + // ShouldStop is provided with the ID of the handler just finishes an event. + // It's thread-safe to access internal/shared state of the handler at this + // moment. + // The Stopper should check state of that handler and return 'true' + // if the execution could be stopped. + ShouldStop(vID types.ValidatorID) bool +} + +// EventHandler defines an interface to handle a Scheduler event. +type EventHandler interface { + // Handle the event belongs to this handler, and return derivated events. + Handle(*Event) []*Event +} -- cgit v1.2.3