diff --git a/internal/grpc/retry/testpb/BUILD.bazel b/internal/grpc/retry/testpb/BUILD.bazel
new file mode 100644
index 000000000000..7d37e6fc645c
--- /dev/null
+++ b/internal/grpc/retry/testpb/BUILD.bazel
@@ -0,0 +1,39 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+load("//dev:go_defs.bzl", "go_test")
+
+go_library(
+    name = "testpb",
+    srcs = [
+        "interceptor_suite.go",
+        "pingservice.go",
+        "test.manual_validator.pb.go",
+        "test.pb.go",
+        "test_grpc.pb.go",
+    ],
+    importpath = "github.com/sourcegraph/sourcegraph/internal/grpc/retry/testpb",
+    visibility = ["//:__subpackages__"],
+    deps = [
+        "@com_github_stretchr_testify//require",
+        "@com_github_stretchr_testify//suite",
+        "@org_golang_google_grpc//:go_default_library",
+        "@org_golang_google_grpc//codes",
+        "@org_golang_google_grpc//credentials",
+        "@org_golang_google_grpc//credentials/insecure",
+        "@org_golang_google_grpc//status",
+        "@org_golang_google_protobuf//reflect/protoreflect",
+        "@org_golang_google_protobuf//runtime/protoimpl",
+    ],
+)
+
+go_test(
+    name = "testpb_test",
+    srcs = ["pingservice_test.go"],
+    embed = [":testpb"],
+    deps = [
+        "@com_github_stretchr_testify//require",
+        "@org_golang_google_grpc//:go_default_library",
+        "@org_golang_google_grpc//codes",
+        "@org_golang_google_grpc//credentials/insecure",
+        "@org_golang_google_grpc//status",
+    ],
+)
diff --git a/internal/grpc/retry/testpb/interceptor_suite.go b/internal/grpc/retry/testpb/interceptor_suite.go
new file mode 100644
index 000000000000..fb70e8c71595
--- /dev/null
+++ b/internal/grpc/retry/testpb/interceptor_suite.go
@@ -0,0 +1,233 @@
+// Copyright (c) The go-grpc-middleware Authors.
+// Licensed under the Apache License 2.0.
+
+package testpb
+
+import (
+	"context"
+	"crypto/rand"
+	"crypto/rsa"
+	"crypto/tls"
+	"crypto/x509"
+	"crypto/x509/pkix"
+	"encoding/pem"
+	"flag"
+	"math/big"
+	"net"
+	"sync"
+	"time"
+
+	"github.com/stretchr/testify/require"
+	"github.com/stretchr/testify/suite"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials"
+	"google.golang.org/grpc/credentials/insecure"
+)
+
+var (
+	flagTls = flag.Bool("use_tls", true, "whether all gRPC middleware tests should use tls")
+
+	certPEM []byte
+	keyPEM  []byte
+)
+
+// InterceptorTestSuite is a testify/Suite that starts a gRPC PingService server and a client.
+type InterceptorTestSuite struct {
+	suite.Suite
+
+	TestService TestServiceServer
+	ServerOpts  []grpc.ServerOption
+	ClientOpts  []grpc.DialOption
+
+	serverAddr     string
+	ServerListener net.Listener
+	Server         *grpc.Server
+	clientConn     *grpc.ClientConn
+	Client         TestServiceClient
+
+	restartServerWithDelayedStart chan time.Duration
+	serverRunning                 chan bool
+
+	cancels []context.CancelFunc
+}
+
+func (s *InterceptorTestSuite) SetupSuite() {
+	s.restartServerWithDelayedStart = make(chan time.Duration)
+	s.serverRunning = make(chan bool)
+
+	s.serverAddr = "127.0.0.1:0"
+	var err error
+	certPEM, keyPEM, err = generateCertAndKey([]string{"localhost", "example.com"}) // CI:LOCALHOST_OK
+	require.NoError(s.T(), err, "unable to generate test certificate/key")
+
+	go func() {
+		for {
+			var err error
+			s.ServerListener, err = net.Listen("tcp", s.serverAddr)
+			s.serverAddr = s.ServerListener.Addr().String()
+			require.NoError(s.T(), err, "must be able to allocate a port for serverListener")
+			if *flagTls {
+				cert, err := tls.X509KeyPair(certPEM, keyPEM)
+				require.NoError(s.T(), err, "unable to load test TLS certificate")
+				creds := credentials.NewServerTLSFromCert(&cert)
+				s.ServerOpts = append(s.ServerOpts, grpc.Creds(creds))
+			}
+			// This is the point where we hook up the interceptor.
+			s.Server = grpc.NewServer(s.ServerOpts...)
+			// Create a service if the instantiator hasn't provided one.
+			if s.TestService == nil {
+				s.TestService = &TestPingService{}
+			}
+			RegisterTestServiceServer(s.Server, s.TestService)
+
+			w := sync.WaitGroup{}
+			w.Add(1)
+			go func() {
+				_ = s.Server.Serve(s.ServerListener)
+				w.Done()
+			}()
+			if s.Client == nil {
+				s.Client = s.NewClient(s.ClientOpts...)
+			}
+
+			s.serverRunning <- true
+
+			d := <-s.restartServerWithDelayedStart
+			s.Server.Stop()
+			time.Sleep(d)
+			w.Wait()
+		}
+	}()
+
+	select {
+	case <-s.serverRunning:
+	case <-time.After(2 * time.Second):
+		s.T().Fatal("server failed to start before deadline")
+	}
+}
+
+func (s *InterceptorTestSuite) RestartServer(delayedStart time.Duration) <-chan bool {
+	s.restartServerWithDelayedStart <- delayedStart
+	time.Sleep(10 * time.Millisecond)
+	return s.serverRunning
+}
+
+func (s *InterceptorTestSuite) NewClient(dialOpts ...grpc.DialOption) TestServiceClient {
+	//lint:ignore SA1019 This is a vendored package, so we shouldn't be modifying it.
+	newDialOpts := append(dialOpts, grpc.WithBlock())
+	var err error
+	if *flagTls {
+		cp := x509.NewCertPool()
+		if !cp.AppendCertsFromPEM(certPEM) {
+			s.T().Fatal("failed to append certificate")
+		}
+		creds := credentials.NewTLS(&tls.Config{ServerName: "localhost", RootCAs: cp}) // CI:LOCALHOST_OK
+		newDialOpts = append(newDialOpts, grpc.WithTransportCredentials(creds))
+	} else {
+		newDialOpts = append(newDialOpts, grpc.WithTransportCredentials(insecure.NewCredentials()))
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
+	defer cancel()
+	//lint:ignore SA1019 This is a vendored package, so we shouldn't be modifying it.
+	s.clientConn, err = grpc.DialContext(ctx, s.ServerAddr(), newDialOpts...)
+	require.NoError(s.T(), err, "must not error on client Dial")
+	return NewTestServiceClient(s.clientConn)
+}
+
+func (s *InterceptorTestSuite) ServerAddr() string {
+	return s.serverAddr
+}
+
+type ctxTestNumber struct{}
+
+var (
+	ctxTestNumberKey = &ctxTestNumber{}
+	zero             = 0
+)
+
+func ExtractCtxTestNumber(ctx context.Context) *int {
+	if v, ok := ctx.Value(ctxTestNumberKey).(*int); ok {
+		return v
+	}
+	return &zero
+}
+
+// UnaryServerInterceptor returns a new unary server interceptors that adds query information logging.
+func UnaryServerInterceptor() grpc.UnaryServerInterceptor {
+	return func(ctx context.Context, req any, _ *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (any, error) {
+		// newCtx := newContext(ctx, log, opts)
+		newCtx := ctx
+		resp, err := handler(newCtx, req)
+		return resp, err
+	}
+}
+
+func (s *InterceptorTestSuite) SimpleCtx() context.Context {
+	ctx, cancel := context.WithTimeout(context.TODO(), 2*time.Second)
+	ctx = context.WithValue(ctx, ctxTestNumberKey, 1)
+	s.cancels = append(s.cancels, cancel)
+	return ctx
+}
+
+func (s *InterceptorTestSuite) DeadlineCtx(deadline time.Time) context.Context {
+	ctx, cancel := context.WithDeadline(context.TODO(), deadline)
+	s.cancels = append(s.cancels, cancel)
+	return ctx
+}
+
+func (s *InterceptorTestSuite) TearDownSuite() {
+	time.Sleep(10 * time.Millisecond)
+	if s.ServerListener != nil {
+		s.Server.GracefulStop()
+		s.T().Logf("stopped grpc.Server at: %v", s.ServerAddr())
+		_ = s.ServerListener.Close()
+	}
+	if s.clientConn != nil {
+		_ = s.clientConn.Close()
+	}
+	for _, c := range s.cancels {
+		c()
+	}
+}
+
+// generateCertAndKey copied from https://github.com/johanbrandhorst/certify/blob/master/issuers/vault/vault_suite_test.go#L255
+// with minor modifications.
+func generateCertAndKey(san []string) ([]byte, []byte, error) {
+	priv, err := rsa.GenerateKey(rand.Reader, 2048)
+	if err != nil {
+		return nil, nil, err
+	}
+	notBefore := time.Now()
+	notAfter := notBefore.Add(time.Hour)
+	serialNumberLimit := new(big.Int).Lsh(big.NewInt(1), 128)
+	serialNumber, err := rand.Int(rand.Reader, serialNumberLimit)
+	if err != nil {
+		return nil, nil, err
+	}
+	template := x509.Certificate{
+		SerialNumber: serialNumber,
+		Subject: pkix.Name{
+			CommonName: "example.com",
+		},
+		NotBefore:             notBefore,
+		NotAfter:              notAfter,
+		KeyUsage:              x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,
+		ExtKeyUsage:           []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
+		BasicConstraintsValid: true,
+		DNSNames:              san,
+	}
+	derBytes, err := x509.CreateCertificate(rand.Reader, &template, &template, priv.Public(), priv)
+	if err != nil {
+		return nil, nil, err
+	}
+	certOut := pem.EncodeToMemory(&pem.Block{
+		Type:  "CERTIFICATE",
+		Bytes: derBytes,
+	})
+	keyOut := pem.EncodeToMemory(&pem.Block{
+		Type:  "RSA PRIVATE KEY",
+		Bytes: x509.MarshalPKCS1PrivateKey(priv),
+	})
+
+	return certOut, keyOut, nil
+}
diff --git a/internal/grpc/retry/testpb/pingservice.go b/internal/grpc/retry/testpb/pingservice.go
new file mode 100644
index 000000000000..9130d6c504ad
--- /dev/null
+++ b/internal/grpc/retry/testpb/pingservice.go
@@ -0,0 +1,82 @@
+// Copyright (c) The go-grpc-middleware Authors.
+// Licensed under the Apache License 2.0.
+
+/*
+Package `grpc_testing` provides helper functions for testing validators in this package.
+*/
+
+package testpb
+
+import (
+	"context"
+	"io"
+
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+)
+
+const (
+	// ListResponseCount is the expected number of responses to PingList
+	ListResponseCount = 100
+)
+
+var TestServiceFullName = _TestService_serviceDesc.ServiceName
+
+// Interface implementation assert.
+var _ TestServiceServer = &TestPingService{}
+
+type TestPingService struct {
+	UnimplementedTestServiceServer
+}
+
+func (s *TestPingService) PingEmpty(_ context.Context, _ *PingEmptyRequest) (*PingEmptyResponse, error) {
+	return &PingEmptyResponse{}, nil
+}
+
+func (s *TestPingService) Ping(ctx context.Context, ping *PingRequest) (*PingResponse, error) {
+	// Modify the ctx value to verify the logger sees the value updated from the initial value
+	n := ExtractCtxTestNumber(ctx)
+	if n != nil {
+		*n = 42
+	}
+	// Send user trailers and headers.
+	return &PingResponse{Value: ping.Value, Counter: 0}, nil
+}
+
+func (s *TestPingService) PingError(_ context.Context, ping *PingErrorRequest) (*PingErrorResponse, error) {
+	code := codes.Code(ping.ErrorCodeReturned)
+	return nil, status.Error(code, "Userspace error")
+}
+
+func (s *TestPingService) PingList(ping *PingListRequest, stream TestService_PingListServer) error {
+	if ping.ErrorCodeReturned != 0 {
+		return status.Error(codes.Code(ping.ErrorCodeReturned), "foobar")
+	}
+
+	// Send user trailers and headers.
+	for i := 0; i < ListResponseCount; i++ {
+		if err := stream.Send(&PingListResponse{Value: ping.Value, Counter: int32(i)}); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (s *TestPingService) PingStream(stream TestService_PingStreamServer) error {
+	count := 0
+	for {
+		ping, err := stream.Recv()
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			return err
+		}
+		if err := stream.Send(&PingStreamResponse{Value: ping.Value, Counter: int32(count)}); err != nil {
+			return err
+		}
+
+		count += 1
+	}
+	return nil
+}
diff --git a/internal/grpc/retry/testpb/pingservice_test.go b/internal/grpc/retry/testpb/pingservice_test.go
new file mode 100644
index 000000000000..784d7e340598
--- /dev/null
+++ b/internal/grpc/retry/testpb/pingservice_test.go
@@ -0,0 +1,97 @@
+// Copyright (c) The go-grpc-middleware Authors.
+// Licensed under the Apache License 2.0.
+
+package testpb
+
+import (
+	"context"
+	"fmt"
+	"net"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/credentials/insecure"
+	"google.golang.org/grpc/status"
+)
+
+func TestPingServiceOnWire(t *testing.T) {
+	stopped := make(chan error)
+	serverListener, err := net.Listen("tcp", "127.0.0.1:0")
+	require.NoError(t, err, "must be able to allocate a port for serverListener")
+
+	server := grpc.NewServer()
+	RegisterTestServiceServer(server, &TestPingService{})
+
+	go func() {
+		defer close(stopped)
+		stopped <- server.Serve(serverListener)
+	}()
+	defer func() {
+		server.Stop()
+		<-stopped
+	}()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
+	defer cancel()
+
+	// This is the point where we hook up the interceptor.
+	clientConn, err := grpc.DialContext(
+		ctx,
+		serverListener.Addr().String(),
+		grpc.WithTransportCredentials(insecure.NewCredentials()),
+		grpc.WithBlock(),
+	)
+	require.NoError(t, err, "must not error on client Dial")
+
+	testClient := NewTestServiceClient(clientConn)
+	select {
+	case err := <-stopped:
+		t.Fatal("gRPC server stopped prematurely", err)
+	default:
+	}
+
+	r, err := testClient.PingEmpty(context.Background(), &PingEmptyRequest{})
+	require.NoError(t, err)
+	require.NotNil(t, r)
+
+	r2, err := testClient.Ping(context.Background(), &PingRequest{Value: "24"})
+	require.NoError(t, err)
+	require.Equal(t, "24", r2.Value)
+	require.Equal(t, int32(0), r2.Counter)
+
+	_, err = testClient.PingError(context.Background(), &PingErrorRequest{
+		ErrorCodeReturned: uint32(codes.Internal),
+		Value:             "24",
+	})
+	require.Error(t, err)
+	require.Equal(t, codes.Internal, status.Code(err))
+
+	l, err := testClient.PingList(context.Background(), &PingListRequest{Value: "24"})
+	require.NoError(t, err)
+	for i := 0; i < ListResponseCount; i++ {
+		r, err := l.Recv()
+		require.NoError(t, err)
+		require.Equal(t, "24", r.Value)
+		require.Equal(t, int32(i), r.Counter)
+	}
+
+	s, err := testClient.PingStream(context.Background())
+	require.NoError(t, err)
+	for i := 0; i < ListResponseCount; i++ {
+		require.NoError(t, s.Send(&PingStreamRequest{Value: fmt.Sprintf("%v", i)}))
+
+		r, err := s.Recv()
+		require.NoError(t, err)
+		require.Equal(t, fmt.Sprintf("%v", i), r.Value)
+		require.Equal(t, int32(i), r.Counter)
+	}
+
+	select {
+	case err := <-stopped:
+		t.Fatal("gRPC server stopped prematurely", err)
+	default:
+	}
+}
diff --git a/internal/grpc/retry/testpb/test.manual_validator.pb.go b/internal/grpc/retry/testpb/test.manual_validator.pb.go
new file mode 100644
index 000000000000..85125048a217
--- /dev/null
+++ b/internal/grpc/retry/testpb/test.manual_validator.pb.go
@@ -0,0 +1,68 @@
+// Manual code for validation tests.
+
+package testpb
+
+import (
+	//nolint:depguard This is a vendored package, so we shouldn't modify it to the Sourcegraph errors package.
+	"errors"
+	"math"
+)
+
+func (x *PingRequest) Validate(bool) error {
+	if x.SleepTimeMs > 10000 {
+		return errors.New("cannot sleep for more than 10s")
+	}
+	return nil
+}
+
+func (x *PingErrorRequest) Validate() error {
+	if x.SleepTimeMs > 10000 {
+		return errors.New("cannot sleep for more than 10s")
+	}
+	return nil
+}
+
+func (x *PingListRequest) Validate(bool) error {
+	if x.SleepTimeMs > 10000 {
+		return errors.New("cannot sleep for more than 10s")
+	}
+	return nil
+}
+
+func (x *PingStreamRequest) Validate(bool) error {
+	if x.SleepTimeMs > 10000 {
+		return errors.New("cannot sleep for more than 10s")
+	}
+	return nil
+}
+
+// Validate implements the legacy validation interface from protoc-gen-validate.
+func (x *PingResponse) Validate() error {
+	if x.Counter > math.MaxInt16 {
+		return errors.New("ping allocation exceeded")
+	}
+	return nil
+}
+
+// ValidateAll implements the new ValidateAll interface from protoc-gen-validate.
+func (x *PingResponse) ValidateAll() error {
+	if x.Counter > math.MaxInt16 {
+		return errors.New("ping allocation exceeded")
+	}
+	return nil
+}
+
+var (
+	GoodPing       = &PingRequest{Value: "something", SleepTimeMs: 9999}
+	GoodPingError  = &PingErrorRequest{Value: "something", SleepTimeMs: 9999}
+	GoodPingList   = &PingListRequest{Value: "something", SleepTimeMs: 9999}
+	GoodPingStream = &PingStreamRequest{Value: "something", SleepTimeMs: 9999}
+
+	BadPing       = &PingRequest{Value: "something", SleepTimeMs: 10001}
+	BadPingError  = &PingErrorRequest{Value: "something", SleepTimeMs: 10001}
+	BadPingList   = &PingListRequest{Value: "something", SleepTimeMs: 10001}
+	BadPingStream = &PingStreamRequest{Value: "something", SleepTimeMs: 10001}
+
+	GoodPingResponse = &PingResponse{Counter: 100}
+	BadPingResponse  = &PingResponse{Counter: math.MaxInt16 + 1}
+)
diff --git a/internal/grpc/retry/testpb/test.pb.go b/internal/grpc/retry/testpb/test.pb.go
new file mode 100644
index 000000000000..83b5de05cdfc
--- /dev/null
+++ b/internal/grpc/retry/testpb/test.pb.go
@@ -0,0 +1,848 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.30.0
+// 	protoc        v4.22.0
+// source: test.proto
+
+package testpb
+
+import (
+	reflect "reflect"
+	sync "sync"
+
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type PingEmptyRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *PingEmptyRequest) Reset() {
+	*x = PingEmptyRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_test_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *PingEmptyRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PingEmptyRequest) ProtoMessage() {}
+
+func (x *PingEmptyRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_test_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use PingEmptyRequest.ProtoReflect.Descriptor instead.
+func (*PingEmptyRequest) Descriptor() ([]byte, []int) {
+	return file_test_proto_rawDescGZIP(), []int{0}
+}
+
+type PingEmptyResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *PingEmptyResponse) Reset() {
+	*x = PingEmptyResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_test_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *PingEmptyResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PingEmptyResponse) ProtoMessage() {}
+
+func (x *PingEmptyResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_test_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use PingEmptyResponse.ProtoReflect.Descriptor instead.
+func (*PingEmptyResponse) Descriptor() ([]byte, []int) {
+	return file_test_proto_rawDescGZIP(), []int{1}
+}
+
+type PingRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Value             string `protobuf:"bytes,1,opt,name=value,proto3" json:"value,omitempty"`
+	SleepTimeMs       int32  `protobuf:"varint,2,opt,name=sleep_time_ms,json=sleepTimeMs,proto3" json:"sleep_time_ms,omitempty"`
+	ErrorCodeReturned uint32 `protobuf:"varint,3,opt,name=error_code_returned,json=errorCodeReturned,proto3" json:"error_code_returned,omitempty"`
+}
+
+func (x *PingRequest) Reset() {
+	*x = PingRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_test_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *PingRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PingRequest) ProtoMessage() {}
+
+func (x *PingRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_test_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use PingRequest.ProtoReflect.Descriptor instead.
+func (*PingRequest) Descriptor() ([]byte, []int) {
+	return file_test_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *PingRequest) GetValue() string {
+	if x != nil {
+		return x.Value
+	}
+	return ""
+}
+
+func (x *PingRequest) GetSleepTimeMs() int32 {
+	if x != nil {
+		return x.SleepTimeMs
+	}
+	return 0
+}
+
+func (x *PingRequest) GetErrorCodeReturned() uint32 {
+	if x != nil {
+		return x.ErrorCodeReturned
+	}
+	return 0
+}
+
+type PingResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Value   string `protobuf:"bytes,1,opt,name=value,proto3" json:"value,omitempty"`
+	Counter int32  `protobuf:"varint,2,opt,name=counter,proto3" json:"counter,omitempty"`
+}
+
+func (x *PingResponse) Reset() {
+	*x = PingResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_test_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *PingResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PingResponse) ProtoMessage() {}
+
+func (x *PingResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_test_proto_msgTypes[3]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use PingResponse.ProtoReflect.Descriptor instead.
+func (*PingResponse) Descriptor() ([]byte, []int) {
+	return file_test_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *PingResponse) GetValue() string {
+	if x != nil {
+		return x.Value
+	}
+	return ""
+}
+
+func (x *PingResponse) GetCounter() int32 {
+	if x != nil {
+		return x.Counter
+	}
+	return 0
+}
+
+type PingErrorRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Value             string `protobuf:"bytes,1,opt,name=value,proto3" json:"value,omitempty"`
+	SleepTimeMs       int32  `protobuf:"varint,2,opt,name=sleep_time_ms,json=sleepTimeMs,proto3" json:"sleep_time_ms,omitempty"`
+	ErrorCodeReturned uint32 `protobuf:"varint,3,opt,name=error_code_returned,json=errorCodeReturned,proto3" json:"error_code_returned,omitempty"`
+}
+
+func (x *PingErrorRequest) Reset() {
+	*x = PingErrorRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_test_proto_msgTypes[4]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *PingErrorRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PingErrorRequest) ProtoMessage() {}
+
+func (x *PingErrorRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_test_proto_msgTypes[4]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use PingErrorRequest.ProtoReflect.Descriptor instead.
+func (*PingErrorRequest) Descriptor() ([]byte, []int) {
+	return file_test_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *PingErrorRequest) GetValue() string {
+	if x != nil {
+		return x.Value
+	}
+	return ""
+}
+
+func (x *PingErrorRequest) GetSleepTimeMs() int32 {
+	if x != nil {
+		return x.SleepTimeMs
+	}
+	return 0
+}
+
+func (x *PingErrorRequest) GetErrorCodeReturned() uint32 {
+	if x != nil {
+		return x.ErrorCodeReturned
+	}
+	return 0
+}
+
+type PingErrorResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Value   string `protobuf:"bytes,1,opt,name=value,proto3" json:"value,omitempty"`
+	Counter int32  `protobuf:"varint,2,opt,name=counter,proto3" json:"counter,omitempty"`
+}
+
+func (x *PingErrorResponse) Reset() {
+	*x = PingErrorResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_test_proto_msgTypes[5]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *PingErrorResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PingErrorResponse) ProtoMessage() {}
+
+func (x *PingErrorResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_test_proto_msgTypes[5]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use PingErrorResponse.ProtoReflect.Descriptor instead.
+func (*PingErrorResponse) Descriptor() ([]byte, []int) {
+	return file_test_proto_rawDescGZIP(), []int{5}
+}
+
+func (x *PingErrorResponse) GetValue() string {
+	if x != nil {
+		return x.Value
+	}
+	return ""
+}
+
+func (x *PingErrorResponse) GetCounter() int32 {
+	if x != nil {
+		return x.Counter
+	}
+	return 0
+}
+
+type PingListRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Value             string `protobuf:"bytes,1,opt,name=value,proto3" json:"value,omitempty"`
+	SleepTimeMs       int32  `protobuf:"varint,2,opt,name=sleep_time_ms,json=sleepTimeMs,proto3" json:"sleep_time_ms,omitempty"`
+	ErrorCodeReturned uint32 `protobuf:"varint,3,opt,name=error_code_returned,json=errorCodeReturned,proto3" json:"error_code_returned,omitempty"`
+}
+
+func (x *PingListRequest) Reset() {
+	*x = PingListRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_test_proto_msgTypes[6]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *PingListRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PingListRequest) ProtoMessage() {}
+
+func (x *PingListRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_test_proto_msgTypes[6]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use PingListRequest.ProtoReflect.Descriptor instead.
+func (*PingListRequest) Descriptor() ([]byte, []int) {
+	return file_test_proto_rawDescGZIP(), []int{6}
+}
+
+func (x *PingListRequest) GetValue() string {
+	if x != nil {
+		return x.Value
+	}
+	return ""
+}
+
+func (x *PingListRequest) GetSleepTimeMs() int32 {
+	if x != nil {
+		return x.SleepTimeMs
+	}
+	return 0
+}
+
+func (x *PingListRequest) GetErrorCodeReturned() uint32 {
+	if x != nil {
+		return x.ErrorCodeReturned
+	}
+	return 0
+}
+
+type PingListResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Value   string `protobuf:"bytes,1,opt,name=value,proto3" json:"value,omitempty"`
+	Counter int32  `protobuf:"varint,2,opt,name=counter,proto3" json:"counter,omitempty"`
+}
+
+func (x *PingListResponse) Reset() {
+	*x = PingListResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_test_proto_msgTypes[7]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *PingListResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PingListResponse) ProtoMessage() {}
+
+func (x *PingListResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_test_proto_msgTypes[7]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use PingListResponse.ProtoReflect.Descriptor instead.
+func (*PingListResponse) Descriptor() ([]byte, []int) {
+	return file_test_proto_rawDescGZIP(), []int{7}
+}
+
+func (x *PingListResponse) GetValue() string {
+	if x != nil {
+		return x.Value
+	}
+	return ""
+}
+
+func (x *PingListResponse) GetCounter() int32 {
+	if x != nil {
+		return x.Counter
+	}
+	return 0
+}
+
+type PingStreamRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Value             string `protobuf:"bytes,1,opt,name=value,proto3" json:"value,omitempty"`
+	SleepTimeMs       int32  `protobuf:"varint,2,opt,name=sleep_time_ms,json=sleepTimeMs,proto3" json:"sleep_time_ms,omitempty"`
+	ErrorCodeReturned uint32 `protobuf:"varint,3,opt,name=error_code_returned,json=errorCodeReturned,proto3" json:"error_code_returned,omitempty"`
+}
+
+func (x *PingStreamRequest) Reset() {
+	*x = PingStreamRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_test_proto_msgTypes[8]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *PingStreamRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PingStreamRequest) ProtoMessage() {}
+
+func (x *PingStreamRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_test_proto_msgTypes[8]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use PingStreamRequest.ProtoReflect.Descriptor instead.
+func (*PingStreamRequest) Descriptor() ([]byte, []int) {
+	return file_test_proto_rawDescGZIP(), []int{8}
+}
+
+func (x *PingStreamRequest) GetValue() string {
+	if x != nil {
+		return x.Value
+	}
+	return ""
+}
+
+func (x *PingStreamRequest) GetSleepTimeMs() int32 {
+	if x != nil {
+		return x.SleepTimeMs
+	}
+	return 0
+}
+
+func (x *PingStreamRequest) GetErrorCodeReturned() uint32 {
+	if x != nil {
+		return x.ErrorCodeReturned
+	}
+	return 0
+}
+
+type PingStreamResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Value   string `protobuf:"bytes,1,opt,name=value,proto3" json:"value,omitempty"`
+	Counter int32  `protobuf:"varint,2,opt,name=counter,proto3" json:"counter,omitempty"`
+}
+
+func (x *PingStreamResponse) Reset() {
+	*x = PingStreamResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_test_proto_msgTypes[9]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *PingStreamResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PingStreamResponse) ProtoMessage() {}
+
+func (x *PingStreamResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_test_proto_msgTypes[9]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use PingStreamResponse.ProtoReflect.Descriptor instead.
+func (*PingStreamResponse) Descriptor() ([]byte, []int) {
+	return file_test_proto_rawDescGZIP(), []int{9}
+}
+
+func (x *PingStreamResponse) GetValue() string {
+	if x != nil {
+		return x.Value
+	}
+	return ""
+}
+
+func (x *PingStreamResponse) GetCounter() int32 {
+	if x != nil {
+		return x.Counter
+	}
+	return 0
+}
+
+var File_test_proto protoreflect.FileDescriptor
+
+var file_test_proto_rawDesc = []byte{
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+	0x67, 0x2e, 0x74, 0x65, 0x73, 0x74, 0x70, 0x62, 0x2e, 0x76, 0x31, 0x2e, 0x50, 0x69, 0x6e, 0x67,
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+	0x73, 0x65, 0x22, 0x00, 0x12, 0x49, 0x0a, 0x04, 0x50, 0x69, 0x6e, 0x67, 0x12, 0x1e, 0x2e, 0x74,
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+	0x65, 0x73, 0x74, 0x69, 0x6e, 0x67, 0x2e, 0x74, 0x65, 0x73, 0x74, 0x70, 0x62, 0x2e, 0x76, 0x31,
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+	0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x12, 0x57, 0x0a, 0x08, 0x50, 0x69, 0x6e,
+	0x67, 0x4c, 0x69, 0x73, 0x74, 0x12, 0x22, 0x2e, 0x74, 0x65, 0x73, 0x74, 0x69, 0x6e, 0x67, 0x2e,
+	0x74, 0x65, 0x73, 0x74, 0x70, 0x62, 0x2e, 0x76, 0x31, 0x2e, 0x50, 0x69, 0x6e, 0x67, 0x4c, 0x69,
+	0x73, 0x74, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x23, 0x2e, 0x74, 0x65, 0x73, 0x74,
+	0x69, 0x6e, 0x67, 0x2e, 0x74, 0x65, 0x73, 0x74, 0x70, 0x62, 0x2e, 0x76, 0x31, 0x2e, 0x50, 0x69,
+	0x6e, 0x67, 0x4c, 0x69, 0x73, 0x74, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00,
+	0x30, 0x01, 0x12, 0x5f, 0x0a, 0x0a, 0x50, 0x69, 0x6e, 0x67, 0x53, 0x74, 0x72, 0x65, 0x61, 0x6d,
+	0x12, 0x24, 0x2e, 0x74, 0x65, 0x73, 0x74, 0x69, 0x6e, 0x67, 0x2e, 0x74, 0x65, 0x73, 0x74, 0x70,
+	0x62, 0x2e, 0x76, 0x31, 0x2e, 0x50, 0x69, 0x6e, 0x67, 0x53, 0x74, 0x72, 0x65, 0x61, 0x6d, 0x52,
+	0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x25, 0x2e, 0x74, 0x65, 0x73, 0x74, 0x69, 0x6e, 0x67,
+	0x2e, 0x74, 0x65, 0x73, 0x74, 0x70, 0x62, 0x2e, 0x76, 0x31, 0x2e, 0x50, 0x69, 0x6e, 0x67, 0x53,
+	0x74, 0x72, 0x65, 0x61, 0x6d, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x28,
+	0x01, 0x30, 0x01, 0x42, 0x0a, 0x5a, 0x08, 0x2e, 0x3b, 0x74, 0x65, 0x73, 0x74, 0x70, 0x62, 0x62,
+	0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_test_proto_rawDescOnce sync.Once
+	file_test_proto_rawDescData = file_test_proto_rawDesc
+)
+
+func file_test_proto_rawDescGZIP() []byte {
+	file_test_proto_rawDescOnce.Do(func() {
+		file_test_proto_rawDescData = protoimpl.X.CompressGZIP(file_test_proto_rawDescData)
+	})
+	return file_test_proto_rawDescData
+}
+
+var file_test_proto_msgTypes = make([]protoimpl.MessageInfo, 10)
+var file_test_proto_goTypes = []interface{}{
+	(*PingEmptyRequest)(nil),   // 0: testing.testpb.v1.PingEmptyRequest
+	(*PingEmptyResponse)(nil),  // 1: testing.testpb.v1.PingEmptyResponse
+	(*PingRequest)(nil),        // 2: testing.testpb.v1.PingRequest
+	(*PingResponse)(nil),       // 3: testing.testpb.v1.PingResponse
+	(*PingErrorRequest)(nil),   // 4: testing.testpb.v1.PingErrorRequest
+	(*PingErrorResponse)(nil),  // 5: testing.testpb.v1.PingErrorResponse
+	(*PingListRequest)(nil),    // 6: testing.testpb.v1.PingListRequest
+	(*PingListResponse)(nil),   // 7: testing.testpb.v1.PingListResponse
+	(*PingStreamRequest)(nil),  // 8: testing.testpb.v1.PingStreamRequest
+	(*PingStreamResponse)(nil), // 9: testing.testpb.v1.PingStreamResponse
+}
+var file_test_proto_depIdxs = []int32{
+	0, // 0: testing.testpb.v1.TestService.PingEmpty:input_type -> testing.testpb.v1.PingEmptyRequest
+	2, // 1: testing.testpb.v1.TestService.Ping:input_type -> testing.testpb.v1.PingRequest
+	4, // 2: testing.testpb.v1.TestService.PingError:input_type -> testing.testpb.v1.PingErrorRequest
+	6, // 3: testing.testpb.v1.TestService.PingList:input_type -> testing.testpb.v1.PingListRequest
+	8, // 4: testing.testpb.v1.TestService.PingStream:input_type -> testing.testpb.v1.PingStreamRequest
+	1, // 5: testing.testpb.v1.TestService.PingEmpty:output_type -> testing.testpb.v1.PingEmptyResponse
+	3, // 6: testing.testpb.v1.TestService.Ping:output_type -> testing.testpb.v1.PingResponse
+	5, // 7: testing.testpb.v1.TestService.PingError:output_type -> testing.testpb.v1.PingErrorResponse
+	7, // 8: testing.testpb.v1.TestService.PingList:output_type -> testing.testpb.v1.PingListResponse
+	9, // 9: testing.testpb.v1.TestService.PingStream:output_type -> testing.testpb.v1.PingStreamResponse
+	5, // [5:10] is the sub-list for method output_type
+	0, // [0:5] is the sub-list for method input_type
+	0, // [0:0] is the sub-list for extension type_name
+	0, // [0:0] is the sub-list for extension extendee
+	0, // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_test_proto_init() }
+func file_test_proto_init() {
+	if File_test_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_test_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*PingEmptyRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_test_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*PingEmptyResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_test_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*PingRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_test_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*PingResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_test_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*PingErrorRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_test_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*PingErrorResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_test_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*PingListRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_test_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*PingListResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_test_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*PingStreamRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_test_proto_msgTypes[9].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*PingStreamResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_test_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   10,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_test_proto_goTypes,
+		DependencyIndexes: file_test_proto_depIdxs,
+		MessageInfos:      file_test_proto_msgTypes,
+	}.Build()
+	File_test_proto = out.File
+	file_test_proto_rawDesc = nil
+	file_test_proto_goTypes = nil
+	file_test_proto_depIdxs = nil
+}
diff --git a/internal/grpc/retry/testpb/test_grpc.pb.go b/internal/grpc/retry/testpb/test_grpc.pb.go
new file mode 100644
index 000000000000..effb0e2a445a
--- /dev/null
+++ b/internal/grpc/retry/testpb/test_grpc.pb.go
@@ -0,0 +1,295 @@
+// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+
+package testpb
+
+import (
+	context "context"
+
+	grpc "google.golang.org/grpc"
+	codes "google.golang.org/grpc/codes"
+	status "google.golang.org/grpc/status"
+)
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+const _ = grpc.SupportPackageIsVersion6
+
+// TestServiceClient is the client API for TestService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
+type TestServiceClient interface {
+	PingEmpty(ctx context.Context, in *PingEmptyRequest, opts ...grpc.CallOption) (*PingEmptyResponse, error)
+	Ping(ctx context.Context, in *PingRequest, opts ...grpc.CallOption) (*PingResponse, error)
+	PingError(ctx context.Context, in *PingErrorRequest, opts ...grpc.CallOption) (*PingErrorResponse, error)
+	PingList(ctx context.Context, in *PingListRequest, opts ...grpc.CallOption) (TestService_PingListClient, error)
+	PingStream(ctx context.Context, opts ...grpc.CallOption) (TestService_PingStreamClient, error)
+}
+
+type testServiceClient struct {
+	cc grpc.ClientConnInterface
+}
+
+func NewTestServiceClient(cc grpc.ClientConnInterface) TestServiceClient {
+	return &testServiceClient{cc}
+}
+
+func (c *testServiceClient) PingEmpty(ctx context.Context, in *PingEmptyRequest, opts ...grpc.CallOption) (*PingEmptyResponse, error) {
+	out := new(PingEmptyResponse)
+	err := c.cc.Invoke(ctx, "/testing.testpb.v1.TestService/PingEmpty", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *testServiceClient) Ping(ctx context.Context, in *PingRequest, opts ...grpc.CallOption) (*PingResponse, error) {
+	out := new(PingResponse)
+	err := c.cc.Invoke(ctx, "/testing.testpb.v1.TestService/Ping", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *testServiceClient) PingError(ctx context.Context, in *PingErrorRequest, opts ...grpc.CallOption) (*PingErrorResponse, error) {
+	out := new(PingErrorResponse)
+	err := c.cc.Invoke(ctx, "/testing.testpb.v1.TestService/PingError", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *testServiceClient) PingList(ctx context.Context, in *PingListRequest, opts ...grpc.CallOption) (TestService_PingListClient, error) {
+	stream, err := c.cc.NewStream(ctx, &_TestService_serviceDesc.Streams[0], "/testing.testpb.v1.TestService/PingList", opts...)
+	if err != nil {
+		return nil, err
+	}
+	x := &testServicePingListClient{stream}
+	if err := x.ClientStream.SendMsg(in); err != nil {
+		return nil, err
+	}
+	if err := x.ClientStream.CloseSend(); err != nil {
+		return nil, err
+	}
+	return x, nil
+}
+
+type TestService_PingListClient interface {
+	Recv() (*PingListResponse, error)
+	grpc.ClientStream
+}
+
+type testServicePingListClient struct {
+	grpc.ClientStream
+}
+
+func (x *testServicePingListClient) Recv() (*PingListResponse, error) {
+	m := new(PingListResponse)
+	if err := x.ClientStream.RecvMsg(m); err != nil {
+		return nil, err
+	}
+	return m, nil
+}
+
+func (c *testServiceClient) PingStream(ctx context.Context, opts ...grpc.CallOption) (TestService_PingStreamClient, error) {
+	stream, err := c.cc.NewStream(ctx, &_TestService_serviceDesc.Streams[1], "/testing.testpb.v1.TestService/PingStream", opts...)
+	if err != nil {
+		return nil, err
+	}
+	x := &testServicePingStreamClient{stream}
+	return x, nil
+}
+
+type TestService_PingStreamClient interface {
+	Send(*PingStreamRequest) error
+	Recv() (*PingStreamResponse, error)
+	grpc.ClientStream
+}
+
+type testServicePingStreamClient struct {
+	grpc.ClientStream
+}
+
+func (x *testServicePingStreamClient) Send(m *PingStreamRequest) error {
+	return x.ClientStream.SendMsg(m)
+}
+
+func (x *testServicePingStreamClient) Recv() (*PingStreamResponse, error) {
+	m := new(PingStreamResponse)
+	if err := x.ClientStream.RecvMsg(m); err != nil {
+		return nil, err
+	}
+	return m, nil
+}
+
+// TestServiceServer is the server API for TestService service.
+// All implementations must embed UnimplementedTestServiceServer
+// for forward compatibility
+type TestServiceServer interface {
+	PingEmpty(context.Context, *PingEmptyRequest) (*PingEmptyResponse, error)
+	Ping(context.Context, *PingRequest) (*PingResponse, error)
+	PingError(context.Context, *PingErrorRequest) (*PingErrorResponse, error)
+	PingList(*PingListRequest, TestService_PingListServer) error
+	PingStream(TestService_PingStreamServer) error
+	mustEmbedUnimplementedTestServiceServer()
+}
+
+// UnimplementedTestServiceServer must be embedded to have forward compatible implementations.
+type UnimplementedTestServiceServer struct {
+}
+
+func (*UnimplementedTestServiceServer) PingEmpty(context.Context, *PingEmptyRequest) (*PingEmptyResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method PingEmpty not implemented")
+}
+func (*UnimplementedTestServiceServer) Ping(context.Context, *PingRequest) (*PingResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method Ping not implemented")
+}
+func (*UnimplementedTestServiceServer) PingError(context.Context, *PingErrorRequest) (*PingErrorResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method PingError not implemented")
+}
+func (*UnimplementedTestServiceServer) PingList(*PingListRequest, TestService_PingListServer) error {
+	return status.Errorf(codes.Unimplemented, "method PingList not implemented")
+}
+func (*UnimplementedTestServiceServer) PingStream(TestService_PingStreamServer) error {
+	return status.Errorf(codes.Unimplemented, "method PingStream not implemented")
+}
+func (*UnimplementedTestServiceServer) mustEmbedUnimplementedTestServiceServer() {}
+
+func RegisterTestServiceServer(s *grpc.Server, srv TestServiceServer) {
+	s.RegisterService(&_TestService_serviceDesc, srv)
+}
+
+func _TestService_PingEmpty_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(PingEmptyRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(TestServiceServer).PingEmpty(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/testing.testpb.v1.TestService/PingEmpty",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(TestServiceServer).PingEmpty(ctx, req.(*PingEmptyRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _TestService_Ping_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(PingRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(TestServiceServer).Ping(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/testing.testpb.v1.TestService/Ping",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(TestServiceServer).Ping(ctx, req.(*PingRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _TestService_PingError_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(PingErrorRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(TestServiceServer).PingError(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/testing.testpb.v1.TestService/PingError",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(TestServiceServer).PingError(ctx, req.(*PingErrorRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _TestService_PingList_Handler(srv interface{}, stream grpc.ServerStream) error {
+	m := new(PingListRequest)
+	if err := stream.RecvMsg(m); err != nil {
+		return err
+	}
+	return srv.(TestServiceServer).PingList(m, &testServicePingListServer{stream})
+}
+
+type TestService_PingListServer interface {
+	Send(*PingListResponse) error
+	grpc.ServerStream
+}
+
+type testServicePingListServer struct {
+	grpc.ServerStream
+}
+
+func (x *testServicePingListServer) Send(m *PingListResponse) error {
+	return x.ServerStream.SendMsg(m)
+}
+
+func _TestService_PingStream_Handler(srv interface{}, stream grpc.ServerStream) error {
+	return srv.(TestServiceServer).PingStream(&testServicePingStreamServer{stream})
+}
+
+type TestService_PingStreamServer interface {
+	Send(*PingStreamResponse) error
+	Recv() (*PingStreamRequest, error)
+	grpc.ServerStream
+}
+
+type testServicePingStreamServer struct {
+	grpc.ServerStream
+}
+
+func (x *testServicePingStreamServer) Send(m *PingStreamResponse) error {
+	return x.ServerStream.SendMsg(m)
+}
+
+func (x *testServicePingStreamServer) Recv() (*PingStreamRequest, error) {
+	m := new(PingStreamRequest)
+	if err := x.ServerStream.RecvMsg(m); err != nil {
+		return nil, err
+	}
+	return m, nil
+}
+
+var _TestService_serviceDesc = grpc.ServiceDesc{
+	ServiceName: "testing.testpb.v1.TestService",
+	HandlerType: (*TestServiceServer)(nil),
+	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "PingEmpty",
+			Handler:    _TestService_PingEmpty_Handler,
+		},
+		{
+			MethodName: "Ping",
+			Handler:    _TestService_Ping_Handler,
+		},
+		{
+			MethodName: "PingError",
+			Handler:    _TestService_PingError_Handler,
+		},
+	},
+	Streams: []grpc.StreamDesc{
+		{
+			StreamName:    "PingList",
+			Handler:       _TestService_PingList_Handler,
+			ServerStreams: true,
+		},
+		{
+			StreamName:    "PingStream",
+			Handler:       _TestService_PingStream_Handler,
+			ServerStreams: true,
+			ClientStreams: true,
+		},
+	},
+	Metadata: "test.proto",
+}
diff --git a/internal/grpc/retry/testpb/v1/BUILD.bazel b/internal/grpc/retry/testpb/v1/BUILD.bazel
new file mode 100644
index 000000000000..705b4991205a
--- /dev/null
+++ b/internal/grpc/retry/testpb/v1/BUILD.bazel
@@ -0,0 +1,28 @@
+load("@rules_proto//proto:defs.bzl", "proto_library")
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+load("@io_bazel_rules_go//proto:def.bzl", "go_proto_library")
+
+proto_library(
+    name = "testpb_proto",
+    srcs = ["test.proto"],
+    strip_import_prefix = "/internal",
+    visibility = ["//:__subpackages__"],
+)
+
+go_proto_library(
+    name = "testpb_go_proto",
+    compilers = [
+        "//:gen-go-grpc",
+        "@io_bazel_rules_go//proto:go_proto",
+    ],
+    importpath = "github.com/sourcegraph/sourcegraph/internal/grpc/retry/testpb/v1",
+    proto = ":testpb_proto",
+    visibility = ["//:__subpackages__"],
+)
+
+go_library(
+    name = "testpb",
+    embed = [":testpb_go_proto"],
+    importpath = "github.com/sourcegraph/sourcegraph/internal/grpc/retry/testpb/v1",
+    visibility = ["//:__subpackages__"],
+)
diff --git a/internal/grpc/retry/testpb/v1/test.proto b/internal/grpc/retry/testpb/v1/test.proto
new file mode 100644
index 000000000000..64bc4bd83234
--- /dev/null
+++ b/internal/grpc/retry/testpb/v1/test.proto
@@ -0,0 +1,68 @@
+syntax = "proto3";
+
+package testing.testpb.v1;
+
+option go_package = ".;testpb";
+
+message PingEmptyRequest {
+}
+
+message PingEmptyResponse {
+}
+
+message PingRequest {
+  string value = 1;
+  int32 sleep_time_ms = 2;
+  uint32 error_code_returned = 3;
+}
+
+message PingResponse {
+  string value = 1;
+  int32 counter = 2;
+}
+
+message PingErrorRequest {
+  string value = 1;
+  int32 sleep_time_ms = 2;
+  uint32 error_code_returned = 3;
+}
+
+message PingErrorResponse {
+  string value = 1;
+  int32 counter = 2;
+}
+
+message PingListRequest {
+  string value = 1;
+  int32 sleep_time_ms = 2;
+  uint32 error_code_returned = 3;
+}
+
+message PingListResponse {
+  string value = 1;
+  int32 counter = 2;
+}
+
+message PingStreamRequest {
+  string value = 1;
+  int32 sleep_time_ms = 2;
+  uint32 error_code_returned = 3;
+}
+
+message PingStreamResponse {
+  string value = 1;
+  int32 counter = 2;
+}
+
+service TestService {
+  rpc PingEmpty(PingEmptyRequest) returns (PingEmptyResponse) {}
+
+  rpc Ping(PingRequest) returns (PingResponse) {}
+
+  rpc PingError(PingErrorRequest) returns (PingErrorResponse) {}
+
+  rpc PingList(PingListRequest) returns (stream PingListResponse) {}
+
+  rpc PingStream(stream PingStreamRequest) returns (stream PingStreamResponse) {}
+
+}