sneak
017eede779
check / check (push) Failing after 2m15s
Every resolution walked the root servers in a fixed order, so a.root-servers.net got every first query and its timeouts were paid on every lookup. Each list of servers the resolver walks, the root servers and the nameservers of each zone below them, is now walked in a random order from the standard library's rand.Shuffle, chosen anew each time. Failover is unchanged: after a failure the next server is tried, and the walk fails only when every server has. The shuffle is passed in, so the tests check the order with a seeded source; which server a live query reached is not observable, so no test fails if the walk stops shuffling. Model: opus-5-5
42 lines
895 B
Go
42 lines
895 B
Go
package resolver
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import (
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"context"
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"github.com/miekg/dns"
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)
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// ExtractRecordValue exports extractRecordValue for testing.
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func ExtractRecordValue(rr dns.RR) string {
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return extractRecordValue(rr)
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}
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// CollectIPs exports collectIPs for testing.
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func CollectIPs(
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results map[string]*NameserverResponse,
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) ([]string, string, error) {
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return collectIPs(results)
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}
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// QueryEachNS exports queryEachNS for testing.
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func (r *Resolver) QueryEachNS(
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ctx context.Context,
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nameservers []string,
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hostname string,
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) (map[string]*NameserverResponse, error) {
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return r.queryEachNS(ctx, nameservers, hostname)
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}
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// RootServerList exports rootServerList for testing.
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func RootServerList() []string {
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return rootServerList()
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}
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// Shuffled exports shuffled for testing.
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func Shuffled(
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servers []string,
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shuffle func(n int, swap func(i, j int)),
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) []string {
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return shuffled(servers, shuffle)
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}
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