coredns/test/file_reload_test.go
Miek Gieben 18304ce9b7 plugin/file: make non-existent file non-fatal (#2955)
* plugin/file: make non-existent file non-fatal

If the zone file being loaded doesn't exist *and* reload is enabled,
just wait the file to pop up in the normal Reload routine.

If reload is set to 0s; we keep this a fatal error on startup. Aslo fix
the ticker in z.Reload(): remove the per second ticks and just use the
reload interval for the ticker.

Brush up the documentation a bit as well.

Fixes: #2951

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

* Stickler and test compile

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

* Remove there too

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

* Cant README test these because zone files dont exist

Signed-off-by: Miek Gieben <miek@miek.nl>
2019-07-04 13:56:37 +08:00

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 1s
}
}
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(2 * time.Second) // 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
`