tests/integration: Moving integration tests to tests/integration directory

git mv integration ./tests

git mv client/integration/* ./tests/integration/client
git mv clientv3/integration/* ./tests/integration/clientv3
git mv client/example_keys_test.go client/main_test.go tests/integration/client/examples
git mv clientv3/concurrency/*_test.go tests/integration/clientv3/concurrency

git mv etcdserver/api/v2store/store_v2v3_test.go etcdserver/api/v2v3/*_test.go tests/integration/v2store
git mv tests/integration/v2store/store_v2v3_test.go tests/integration/v2store/store_v2v3.go
git mv tests/integration/v2store/store_test.go tests/integration/v2store/store_v2v3_test.go
git mv etcdserver/api/v2store/store_test.go tests/integration/v2store
git mv etcdserver/api/v2store/store_v2_test.go tests/integration/v2store

git mv proxy/grpcproxy/*_test.go tests/integration/proxy/grpcproxy

git mv ./clientv3/snapshot/testdata ./clientv3/snapshot/*_test.go ./tests/integration/snapshot

clientv3/naming/grpc_test.go

@@ -108,7 +108,7 @@ func TestGRPCResolverMulti(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	r := namingv3.GRPCResolver{c}
+	r := namingv3.GRPCResolver{Client: c}
 
 	w, err := r.Resolve("foo")
 	if err != nil {

tests/integration/clientv3/doc.go

@@ -12,6 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// Package integration implements tests built upon embedded etcd, and focuses on
+// Package clientv3test implements tests built upon embedded etcd, and focuses on
 // correctness of etcd client.
-package integration
+package clientv3test

tests/integration/v2store/main_test.go

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package v2v3_test
+package v2store_test
 
 import (
 	"fmt"

tests/integration/v2store/store_tag_v2v3_test.go

@@ -23,7 +23,7 @@ import (
 	"go.etcd.io/etcd/v3/clientv3"
 	"go.etcd.io/etcd/v3/etcdserver/api/v2store"
 	"go.etcd.io/etcd/v3/etcdserver/api/v2v3"
-	"go.etcd.io/etcd/v3/integration"
+	"go.etcd.io/etcd/tests/v3/integration"
 
 	"google.golang.org/grpc/grpclog"
 )

tests/integration/v2store/store_v2v3_test.go

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package v2v3_test
+package v2store_test
 
 import (
 	"strings"