coredns/test/file_reload_test.go
Miek Gieben c840caf1ef
Speed up testing (#4239)
* Speed up testing

* make notification run in the background, this recudes the test_readme
time from 18s to 0.10s
* reduce time for zone reload

* TestServeDNSConcurrent remove entirely. This took a whopping 58s for
  ... ? A few minutes staring didn't reveal wth it is actually testing.
  Making values smaller revealed race conditions in the tests. Remove
  entirely.

* Move many interval values to variables so we can reset them to short
  values for the tests.

* test_large_axfr: make the zone smaller. The number used 64K has no
  rational, make it 64/10 to speed up.
* TestProxyThreeWay: use client with shorter timeout

A few random tidbits in other tests.

Total time saved: 177s (almost 3m) - which makes it worthwhile again to
run the test locally:

this branch:

~~~
ok  	github.com/coredns/coredns/test	10.437s
cd plugin; time go t ./...
5,51s user 7,51s system 11,15s elapsed 744%CPU (
~~~

master:

~~~
ok  	github.com/coredns/coredns/test	35.252s
cd plugin; time go t ./...
157,64s user 15,39s system 50,05s elapsed 345%CPU ()
~~~
tests/ -25s
plugins/ -40s

This brings the total on 20s, and another 10s can be saved by fixing
dnstapio. Moving this to 5s would be even better, but 10s is also nice.

Signed-off-by: Miek Gieben <miek@miek.nl>

* Also 0.01

Signed-off-by: Miek Gieben <miek@miek.nl>
2020-10-30 10:27:04 +01:00

67 lines
1.4 KiB
Go

package test
import (
"io/ioutil"
"testing"
"time"
"github.com/coredns/coredns/plugin/test"
"github.com/miekg/dns"
)
func TestZoneReload(t *testing.T) {
name, rm, err := test.TempFile(".", exampleOrg)
if err != nil {
t.Fatalf("Failed to create zone: %s", err)
}
defer rm()
// Corefile with two stanzas
corefile := `
example.org:0 {
file ` + name + ` {
reload 0.01s
}
}
example.net:0 {
file ` + name + `
}`
i, udp, _, err := CoreDNSServerAndPorts(corefile)
if err != nil {
t.Fatalf("Could not get CoreDNS serving instance: %s", err)
}
defer i.Stop()
m := new(dns.Msg)
m.SetQuestion("example.org.", dns.TypeA)
resp, err := dns.Exchange(m, udp)
if err != nil {
t.Fatalf("Expected to receive reply, but didn't: %s", err)
}
if len(resp.Answer) != 2 {
t.Fatalf("Expected two RR in answer section got %d", len(resp.Answer))
}
// Remove RR from the Apex
ioutil.WriteFile(name, []byte(exampleOrgUpdated), 0644)
time.Sleep(10 * time.Millisecond) // reload time
resp, err = dns.Exchange(m, udp)
if err != nil {
t.Fatal("Expected to receive reply, but didn't")
}
if len(resp.Answer) != 1 {
t.Fatalf("Expected two RR in answer section got %d", len(resp.Answer))
}
}
const exampleOrgUpdated = `; example.org test file
example.org. IN SOA sns.dns.icann.org. noc.dns.icann.org. 2016082541 7200 3600 1209600 3600
example.org. IN NS b.iana-servers.net.
example.org. IN NS a.iana-servers.net.
example.org. IN A 127.0.0.2
`