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p2p/discover: add test for lookup returning immediately

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Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
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Csaba Kiraly 2025-09-12 10:59:29 +02:00
parent 72d3e881b3
commit 3eab4616a6
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1 changed files with 6 additions and 1 deletions
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7
p2p/discover/v4_lookup_test.go
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@ -23,6 +23,7 @@ import (
"slices" "slices"
"sync" "sync"
"testing" "testing"
"time"
"github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/p2p/discover/v4wire" "github.com/ethereum/go-ethereum/p2p/discover/v4wire"
@ -34,11 +35,15 @@ func TestUDPv4_Lookup(t *testing.T) {
t.Parallel() t.Parallel()
test := newUDPTest(t) test := newUDPTest(t)
// Lookup on empty table returns no nodes. // Lookup on empty table returns immediately with no nodes.
targetKey, _ := v4wire.DecodePubkey(crypto.S256(), lookupTestnet.target) targetKey, _ := v4wire.DecodePubkey(crypto.S256(), lookupTestnet.target)
start := time.Now()
if results := test.udp.LookupPubkey(targetKey); len(results) > 0 { if results := test.udp.LookupPubkey(targetKey); len(results) > 0 {
t.Fatalf("lookup on empty table returned %d results: %#v", len(results), results) t.Fatalf("lookup on empty table returned %d results: %#v", len(results), results)
} }
if time.Since(start) > 100*time.Millisecond {
t.Fatalf("lookup on empty table took too long: %s", time.Since(start))
}
// Seed table with initial node. // Seed table with initial node.
fillTable(test.table, []*enode.Node{lookupTestnet.node(256, 0)}, true) fillTable(test.table, []*enode.Node{lookupTestnet.node(256, 0)}, true)