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// Copyright (C) 2019-2023 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
package followernode
import (
"path/filepath"
"testing"
"github.com/stretchr/testify/require"
"github.com/algorand/go-algorand/test/framework/fixtures"
"github.com/algorand/go-algorand/test/partitiontest"
)
func TestBasicSyncMode(t *testing.T) {
partitiontest.PartitionTest(t)
defer fixtures.ShutdownSynchronizedTest(t)
if testing.Short() {
t.Skip()
}
t.Parallel()
a := require.New(fixtures.SynchronizedTest(t))
// Overview of this test:
// Start a two-node network--one in follower mode (follower has 0%, secondary has 100%)
// Let it run for a few blocks.
// Retrieve deltas for some rounds using sync round calls on the follower node.
var fixture fixtures.RestClientFixture
// Give the second node (which starts up last) all the stake so that its proposal always has better credentials,
// and so that its proposal isn't dropped. Otherwise, the test burns 17s to recover. We don't care about stake
// distribution so this is fine.
fixture.Setup(t, filepath.Join("nettemplates", "TwoNodesFollower100Second.json"))
defer fixture.Shutdown()
// Get controller for Primary node to see the state of the chain
nc, err := fixture.GetNodeController("Primary")
a.NoError(err)
// Let the network make some progress
waitForRound := uint64(5)
err = fixture.ClientWaitForRoundWithTimeout(fixture.GetAlgodClientForController(nc), waitForRound)
a.NoError(err)
// Get the follower client, and exercise the sync/ledger functionality
followControl, err := fixture.GetNodeController("Follower")
a.NoError(err)
followClient := fixture.GetAlgodClientForController(followControl)
// Now, catch up round by round, retrieving state deltas for each
for round := uint64(1); round <= waitForRound; round++ {
// assert sync round set
rResp, err := followClient.GetSyncRound()
a.NoError(err)
a.Equal(round, rResp.Round)
// make some progress to round
err = fixture.ClientWaitForRoundWithTimeout(followClient, round)
a.NoError(err)
// retrieve state delta
gResp, err := followClient.GetLedgerStateDelta(round)
a.NoError(err)
a.NotNil(gResp)
// set sync round next
err = followClient.SetSyncRound(round + 1)
a.NoError(err)
}
err = fixture.LibGoalFixture.ClientWaitForRoundWithTimeout(fixture.LibGoalClient, waitForRound)
a.NoError(err)
}
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