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/*
*
* Copyright 2021 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package test contains test only functions for package admin. It's used by
// admin/admin_test.go and admin/test/admin_test.go.
package test
import (
"context"
"net"
"testing"
"time"
"github.com/google/uuid"
"google.golang.org/grpc"
"google.golang.org/grpc/admin"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/credentials/insecure"
"google.golang.org/grpc/internal/testutils/xds/bootstrap"
"google.golang.org/grpc/status"
v3statusgrpc "github.com/envoyproxy/go-control-plane/envoy/service/status/v3"
v3statuspb "github.com/envoyproxy/go-control-plane/envoy/service/status/v3"
channelzgrpc "google.golang.org/grpc/channelz/grpc_channelz_v1"
channelzpb "google.golang.org/grpc/channelz/grpc_channelz_v1"
)
const (
defaultTestTimeout = 10 * time.Second
)
// ExpectedStatusCodes contains the expected status code for each RPC (can be
// OK).
type ExpectedStatusCodes struct {
ChannelzCode codes.Code
CSDSCode codes.Code
}
// RunRegisterTests makes a client, runs the RPCs, and compares the status
// codes.
func RunRegisterTests(t *testing.T, ec ExpectedStatusCodes) {
nodeID := uuid.New().String()
bootstrapCleanup, err := bootstrap.CreateFile(bootstrap.Options{
NodeID: nodeID,
ServerURI: "no.need.for.a.server",
})
if err != nil {
t.Fatal(err)
}
defer bootstrapCleanup()
lis, err := net.Listen("tcp", "localhost:0")
if err != nil {
t.Fatalf("cannot create listener: %v", err)
}
server := grpc.NewServer()
defer server.Stop()
cleanup, err := admin.Register(server)
if err != nil {
t.Fatalf("failed to register admin: %v", err)
}
defer cleanup()
go func() {
server.Serve(lis)
}()
conn, err := grpc.Dial(lis.Addr().String(), grpc.WithTransportCredentials(insecure.NewCredentials()))
if err != nil {
t.Fatalf("cannot connect to server: %v", err)
}
t.Run("channelz", func(t *testing.T) {
if err := RunChannelz(conn); status.Code(err) != ec.ChannelzCode {
t.Fatalf("%s RPC failed with error %v, want code %v", "channelz", err, ec.ChannelzCode)
}
})
t.Run("csds", func(t *testing.T) {
if err := RunCSDS(conn); status.Code(err) != ec.CSDSCode {
t.Fatalf("%s RPC failed with error %v, want code %v", "CSDS", err, ec.CSDSCode)
}
})
}
// RunChannelz makes a channelz RPC.
func RunChannelz(conn *grpc.ClientConn) error {
c := channelzgrpc.NewChannelzClient(conn)
ctx, cancel := context.WithTimeout(context.Background(), defaultTestTimeout)
defer cancel()
_, err := c.GetTopChannels(ctx, &channelzpb.GetTopChannelsRequest{}, grpc.WaitForReady(true))
return err
}
// RunCSDS makes a CSDS RPC.
func RunCSDS(conn *grpc.ClientConn) error {
c := v3statusgrpc.NewClientStatusDiscoveryServiceClient(conn)
ctx, cancel := context.WithTimeout(context.Background(), defaultTestTimeout)
defer cancel()
_, err := c.FetchClientStatus(ctx, &v3statuspb.ClientStatusRequest{}, grpc.WaitForReady(true))
return err
}
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