Move Healthcheck to middleware/pkg/healthcheck (#854)

* Move healthcheck out

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

* Move healthcheck to middleware/pkg/healthcheck

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>

1 files changed, 0 insertions, 58 deletions

diff --git a/middleware/proxy/upstream_test.go b/middleware/proxy/upstream_test.go
index 06c229f39..3aa4104e8 100644
--- a/middleware/proxy/upstream_test.go
+++ b/middleware/proxy/upstream_test.go
@@ -2,74 +2,16 @@ package proxy
 
 import (
 	"io/ioutil"
-	"log"
 	"os"
 	"path/filepath"
 	"strings"
 	"testing"
-	"time"
 
 	"github.com/coredns/coredns/middleware/test"
 
 	"github.com/mholt/caddy"
 )
 
-func TestHealthCheck(t *testing.T) {
-	log.SetOutput(ioutil.Discard)
-
-	upstream := &staticUpstream{
-		from:        ".",
-		Hosts:       testPool(),
-		Policy:      &Random{},
-		Spray:       nil,
-		FailTimeout: 10 * time.Second,
-		Future:      60 * time.Second,
-		MaxFails:    1,
-	}
-
-	upstream.healthCheck()
-	// sleep a bit, it's async now
-	time.Sleep(time.Duration(2 * time.Second))
-
-	if upstream.Hosts[0].Down() {
-		t.Error("Expected first host in testpool to not fail healthcheck.")
-	}
-	if !upstream.Hosts[1].Down() {
-		t.Error("Expected second host in testpool to fail healthcheck.")
-	}
-}
-
-func TestSelect(t *testing.T) {
-	upstream := &staticUpstream{
-		from:        ".",
-		Hosts:       testPool()[:3],
-		Policy:      &Random{},
-		FailTimeout: 10 * time.Second,
-		Future:      60 * time.Second,
-		MaxFails:    1,
-	}
-	upstream.Hosts[0].OkUntil = time.Unix(0, 0)
-	upstream.Hosts[1].OkUntil = time.Unix(0, 0)
-	upstream.Hosts[2].OkUntil = time.Unix(0, 0)
-	if h := upstream.Select(); h != nil {
-		t.Error("Expected select to return nil as all host are down")
-	}
-	upstream.Hosts[2].OkUntil = time.Time{}
-	if h := upstream.Select(); h == nil {
-		t.Error("Expected select to not return nil")
-	}
-}
-
-func TestRegisterPolicy(t *testing.T) {
-	name := "custom"
-	customPolicy := &customPolicy{}
-	RegisterPolicy(name, func() Policy { return customPolicy })
-	if _, ok := supportedPolicies[name]; !ok {
-		t.Error("Expected supportedPolicies to have a custom policy.")
-	}
-
-}
-
 func TestAllowedDomain(t *testing.T) {
 	upstream := &staticUpstream{
 		from:              "miek.nl.",