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>

1 files changed, 6 insertions, 6 deletions

diff --git a/test/auto_test.go b/test/auto_test.go
index 03b290ef8..f7502172f 100644
--- a/test/auto_test.go
+++ b/test/auto_test.go
@@ -21,7 +21,7 @@ func TestAuto(t *testing.T) {
 	corefile := `org:0 {
 		auto {
 			directory ` + tmpdir + ` db\.(.*) {1}
-			reload 0.1s
+			reload 0.01s
 		}
 	}`
 
@@ -46,7 +46,7 @@ func TestAuto(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	time.Sleep(150 * time.Millisecond) // wait for it to be picked up
+	time.Sleep(10 * time.Millisecond) // wait for it to be picked up
 
 	resp, err = dns.Exchange(m, udp)
 	if err != nil {
@@ -59,7 +59,7 @@ func TestAuto(t *testing.T) {
 	// Remove db.example.org again.
 	os.Remove(filepath.Join(tmpdir, "db.example.org"))
 
-	time.Sleep(150 * time.Millisecond) // wait for it to be picked up
+	time.Sleep(10 * time.Millisecond) // wait for it to be picked up
 	resp, err = dns.Exchange(m, udp)
 	if err != nil {
 		t.Fatal("Expected to receive reply, but didn't")
@@ -80,7 +80,7 @@ func TestAutoNonExistentZone(t *testing.T) {
 	corefile := `.:0 {
 		auto {
 			directory ` + tmpdir + ` (.*) {1}
-			reload 1s
+			reload 0.01s
 		}
 		errors stdout
 	}`
@@ -119,7 +119,7 @@ func TestAutoAXFR(t *testing.T) {
 	corefile := `org:0 {
 		auto {
 			directory ` + tmpdir + ` db\.(.*) {1}
-			reload 0.1s
+			reload 0.01s
 		}
 		transfer {
 			to *
@@ -142,7 +142,7 @@ func TestAutoAXFR(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	time.Sleep(150 * time.Millisecond) // wait for it to be picked up
+	time.Sleep(10 * time.Millisecond) // wait for it to be picked up
 
 	tr := new(dns.Transfer)
 	m := new(dns.Msg)