71 lines
2.2 KiB
Go
71 lines
2.2 KiB
Go
// Copyright 2024 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser 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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//
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// The go-ethereum library 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 Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package discover
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import (
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"net"
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"testing"
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"time"
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"github.com/ethereum/go-ethereum/common/mclock"
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)
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// This test checks that revalidation can handle a node disappearing while
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// a request is active.
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func TestRevalidationNodeRemoved(t *testing.T) {
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var (
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clock mclock.Simulated
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transport = newPingRecorder()
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tab, db = newInactiveTestTable(transport, Config{Clock: &clock})
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tr = &tab.revalidation
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)
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defer db.Close()
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// Fill a bucket.
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node := nodeAtDistance(tab.self().ID(), 255, net.IP{77, 88, 99, 1})
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tab.handleAddNode(addNodeOp{node: node})
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// Start a revalidation request. Schedule once to get the next start time,
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// then advance the clock to that point and schedule again to start.
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next := tr.run(tab, clock.Now())
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clock.Run(time.Duration(next + 1))
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tr.run(tab, clock.Now())
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if len(tr.activeReq) != 1 {
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t.Fatal("revalidation request did not start:", tr.activeReq)
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}
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// Delete the node.
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tab.deleteInBucket(tab.bucket(node.ID()), node.ID())
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// Now finish the revalidation request.
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var resp revalidationResponse
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select {
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case resp = <-tab.revalResponseCh:
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case <-time.After(1 * time.Second):
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t.Fatal("timed out waiting for revalidation")
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}
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tr.handleResponse(tab, resp)
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// Ensure the node was not re-added to the table.
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if tab.getNode(node.ID()) != nil {
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t.Fatal("node was re-added to Table")
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}
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if tr.fast.contains(node.ID()) || tr.slow.contains(node.ID()) {
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t.Fatal("removed node contained in revalidation list")
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}
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}
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