client: introduce httpActionDo interface

client/http.go

@@ -42,6 +42,10 @@ type httpAction interface {
 	httpRequest(url.URL) *http.Request
 }
 
+type httpActionDo interface {
+	do(context.Context, httpAction) (int, []byte, error)
+}
+
 type roundTripResponse struct {
 	resp *http.Response
 	err  error

client/keys.go

@@ -100,7 +100,7 @@ func (n *Node) String() string {
 }
 
 type httpKeysAPI struct {
-	client  *httpClient
+	client  httpActionDo
 	prefix  string
 	timeout time.Duration
 }
@@ -168,7 +168,7 @@ func (k *httpKeysAPI) RecursiveWatch(key string, idx uint64) Watcher {
 }
 
 type httpWatcher struct {
-	client   *httpClient
+	client   httpActionDo
 	nextWait waitAction
 }
 

client/members.go

@@ -60,7 +60,7 @@ type MembersAPI interface {
 }
 
 type httpMembersAPI struct {
-	client  *httpClient
+	client  httpActionDo
 	timeout time.Duration
 }