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client: remove deprecated WithServiceConfig DialOption (#6800)

This commit is contained in:
Doug Fawley 2023-11-15 11:17:10 -08:00 committed by GitHub
parent 42fdcc4c06
commit 232054a883
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 0 additions and 527 deletions
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35
clientconn.go
View File

@ -255,22 +255,6 @@ func DialContext(ctx context.Context, target string, opts ...DialOption) (conn *
cc.dopts.bs = backoff.DefaultExponential cc.dopts.bs = backoff.DefaultExponential
} }
if cc.dopts.scChan != nil {
// Blocking wait for the initial service config.
select {
case sc, ok := <-cc.dopts.scChan:
if ok {
cc.sc = &sc
cc.safeConfigSelector.UpdateConfigSelector(&defaultConfigSelector{&sc})
}
case <-ctx.Done():
return nil, ctx.Err()
}
}
if cc.dopts.scChan != nil {
go cc.scWatcher()
}
// This creates the name resolver, load balancer, blocking picker etc. // This creates the name resolver, load balancer, blocking picker etc.
if err := cc.exitIdleMode(); err != nil { if err := cc.exitIdleMode(); err != nil {
return nil, err return nil, err
@ -746,25 +730,6 @@ func (cc *ClientConn) Connect() {
cc.balancerWrapper.exitIdleMode() cc.balancerWrapper.exitIdleMode()
} }
func (cc *ClientConn) scWatcher() {
for {
select {
case sc, ok := <-cc.dopts.scChan:
if !ok {
return
}
cc.mu.Lock()
// TODO: load balance policy runtime change is ignored.
// We may revisit this decision in the future.
cc.sc = &sc
cc.safeConfigSelector.UpdateConfigSelector(&defaultConfigSelector{&sc})
cc.mu.Unlock()
case <-cc.ctx.Done():
return
}
}
}
// waitForResolvedAddrs blocks until the resolver has provided addresses or the // waitForResolvedAddrs blocks until the resolver has provided addresses or the
// context expires. Returns nil unless the context expires first; otherwise // context expires. Returns nil unless the context expires first; otherwise
// returns a status error based on the context. // returns a status error based on the context.

14
dialoptions.go
View File

@ -64,7 +64,6 @@ type dialOptions struct {
block bool block bool
returnLastError bool returnLastError bool
timeout time.Duration timeout time.Duration
scChan <-chan ServiceConfig
authority string authority string
binaryLogger binarylog.Logger binaryLogger binarylog.Logger
copts transport.ConnectOptions copts transport.ConnectOptions
@ -251,19 +250,6 @@ func WithDecompressor(dc Decompressor) DialOption {
}) })
} }
// WithServiceConfig returns a DialOption which has a channel to read the
// service configuration.
//
// Deprecated: service config should be received through name resolver or via
// WithDefaultServiceConfig, as specified at
// https://github.com/grpc/grpc/blob/master/doc/service_config.md. Will be
// removed in a future 1.x release.
func WithServiceConfig(c <-chan ServiceConfig) DialOption {
return newFuncDialOption(func(o *dialOptions) {
o.scChan = c
})
}
// WithConnectParams configures the ClientConn to use the provided ConnectParams // WithConnectParams configures the ClientConn to use the provided ConnectParams
// for creating and maintaining connections to servers. // for creating and maintaining connections to servers.
// //

15
test/end2end_test.go
View File

@ -505,7 +505,6 @@ type test struct {
clientNopCompression bool clientNopCompression bool
unaryClientInt grpc.UnaryClientInterceptor unaryClientInt grpc.UnaryClientInterceptor
streamClientInt grpc.StreamClientInterceptor streamClientInt grpc.StreamClientInterceptor
sc <-chan grpc.ServiceConfig
clientInitialWindowSize int32 clientInitialWindowSize int32
clientInitialConnWindowSize int32 clientInitialConnWindowSize int32
perRPCCreds credentials.PerRPCCredentials perRPCCreds credentials.PerRPCCredentials
@ -760,10 +759,6 @@ func (d *nopDecompressor) Type() string {
func (te *test) configDial(opts ...grpc.DialOption) ([]grpc.DialOption, string) { func (te *test) configDial(opts ...grpc.DialOption) ([]grpc.DialOption, string) {
opts = append(opts, grpc.WithDialer(te.e.dialer), grpc.WithUserAgent(te.userAgent)) opts = append(opts, grpc.WithDialer(te.e.dialer), grpc.WithUserAgent(te.userAgent))
if te.sc != nil {
opts = append(opts, grpc.WithServiceConfig(te.sc))
}
if te.clientCompression { if te.clientCompression {
opts = append(opts, opts = append(opts,
grpc.WithCompressor(grpc.NewGZIPCompressor()), grpc.WithCompressor(grpc.NewGZIPCompressor()),
@ -1103,20 +1098,10 @@ func testServiceConfigSetup(t *testing.T, e env) *test {
return te return te
} }
func newBool(b bool) (a *bool) {
return &b
}
func newInt(b int) (a *int) { func newInt(b int) (a *int) {
return &b return &b
} }
func newDuration(b time.Duration) (a *time.Duration) {
a = new(time.Duration)
*a = b
return
}
func (s) TestGetMethodConfig(t *testing.T) { func (s) TestGetMethodConfig(t *testing.T) {
te := testServiceConfigSetup(t, tcpClearRREnv) te := testServiceConfigSetup(t, tcpClearRREnv)
defer te.tearDown() defer te.tearDown()

463
test/service_config_deprecated_test.go
View File

@ -1,463 +0,0 @@
/*
*
* Copyright 2023 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
import (
"context"
"testing"
"time"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
testgrpc "google.golang.org/grpc/interop/grpc_testing"
testpb "google.golang.org/grpc/interop/grpc_testing"
)
// The following functions with function name ending with TD indicates that they
// should be deleted after old service config API is deprecated and deleted.
func testServiceConfigSetupTD(t *testing.T, e env) (*test, chan grpc.ServiceConfig) {
te := newTest(t, e)
// We write before read.
ch := make(chan grpc.ServiceConfig, 1)
te.sc = ch
te.userAgent = testAppUA
te.declareLogNoise(
"transport: http2Client.notifyError got notified that the client transport was broken EOF",
"grpc: addrConn.transportMonitor exits due to: grpc: the connection is closing",
"grpc: addrConn.resetTransport failed to create client transport: connection error",
"Failed to dial : context canceled; please retry.",
)
return te, ch
}
func (s) TestServiceConfigGetMethodConfigTD(t *testing.T) {
for _, e := range listTestEnv() {
testGetMethodConfigTD(t, e)
}
}
func testGetMethodConfigTD(t *testing.T, e env) {
te, ch := testServiceConfigSetupTD(t, e)
defer te.tearDown()
mc1 := grpc.MethodConfig{
WaitForReady: newBool(true),
Timeout: newDuration(time.Millisecond),
}
mc2 := grpc.MethodConfig{WaitForReady: newBool(false)}
m := make(map[string]grpc.MethodConfig)
m["/grpc.testing.TestService/EmptyCall"] = mc1
m["/grpc.testing.TestService/"] = mc2
sc := grpc.ServiceConfig{
Methods: m,
}
ch <- sc
cc := te.clientConn()
tc := testgrpc.NewTestServiceClient(cc)
ctx, cancel := context.WithTimeout(context.Background(), defaultTestTimeout)
defer cancel()
// The following RPCs are expected to become non-fail-fast ones with 1ms deadline.
if _, err := tc.EmptyCall(ctx, &testpb.Empty{}); status.Code(err) != codes.DeadlineExceeded {
t.Fatalf("TestService/EmptyCall(_, _) = _, %v, want _, %s", err, codes.DeadlineExceeded)
}
m = make(map[string]grpc.MethodConfig)
m["/grpc.testing.TestService/UnaryCall"] = mc1
m["/grpc.testing.TestService/"] = mc2
sc = grpc.ServiceConfig{
Methods: m,
}
ch <- sc
// Wait for the new service config to propagate.
for {
if _, err := tc.EmptyCall(ctx, &testpb.Empty{}); status.Code(err) != codes.DeadlineExceeded {
break
}
}
// The following RPCs are expected to become fail-fast.
if _, err := tc.EmptyCall(ctx, &testpb.Empty{}); status.Code(err) != codes.Unavailable {
t.Fatalf("TestService/EmptyCall(_, _) = _, %v, want _, %s", err, codes.Unavailable)
}
}
func (s) TestServiceConfigWaitForReadyTD(t *testing.T) {
for _, e := range listTestEnv() {
testServiceConfigWaitForReadyTD(t, e)
}
}
func testServiceConfigWaitForReadyTD(t *testing.T, e env) {
te, ch := testServiceConfigSetupTD(t, e)
defer te.tearDown()
// Case1: Client API set failfast to be false, and service config set wait_for_ready to be false, Client API should win, and the rpc will wait until deadline exceeds.
mc := grpc.MethodConfig{
WaitForReady: newBool(false),
Timeout: newDuration(time.Millisecond),
}
m := make(map[string]grpc.MethodConfig)
m["/grpc.testing.TestService/EmptyCall"] = mc
m["/grpc.testing.TestService/FullDuplexCall"] = mc
sc := grpc.ServiceConfig{
Methods: m,
}
ch <- sc
cc := te.clientConn()
tc := testgrpc.NewTestServiceClient(cc)
ctx, cancel := context.WithTimeout(context.Background(), defaultTestTimeout)
defer cancel()
// The following RPCs are expected to become non-fail-fast ones with 1ms deadline.
if _, err := tc.EmptyCall(ctx, &testpb.Empty{}, grpc.WaitForReady(true)); status.Code(err) != codes.DeadlineExceeded {
t.Fatalf("TestService/EmptyCall(_, _) = _, %v, want _, %s", err, codes.DeadlineExceeded)
}
if _, err := tc.FullDuplexCall(ctx, grpc.WaitForReady(true)); status.Code(err) != codes.DeadlineExceeded {
t.Fatalf("TestService/FullDuplexCall(_) = _, %v, want %s", err, codes.DeadlineExceeded)
}
// Generate a service config update.
// Case2: Client API does not set failfast, and service config set wait_for_ready to be true, and the rpc will wait until deadline exceeds.
mc.WaitForReady = newBool(true)
m = make(map[string]grpc.MethodConfig)
m["/grpc.testing.TestService/EmptyCall"] = mc
m["/grpc.testing.TestService/FullDuplexCall"] = mc
sc = grpc.ServiceConfig{
Methods: m,
}
ch <- sc
// Wait for the new service config to take effect.
ctx, cancel = context.WithTimeout(context.Background(), defaultTestTimeout)
defer cancel()
for ; ctx.Err() == nil; <-time.After(defaultTestShortTimeout) {
mc = cc.GetMethodConfig("/grpc.testing.TestService/FullDuplexCall")
if *mc.WaitForReady {
break
}
}
if ctx.Err() != nil {
t.Fatalf("Timeout when waiting for service config to take effect")
}
// The following RPCs are expected to become non-fail-fast ones with 1ms deadline.
if _, err := tc.EmptyCall(ctx, &testpb.Empty{}); status.Code(err) != codes.DeadlineExceeded {
t.Fatalf("TestService/EmptyCall(_, _) = _, %v, want _, %s", err, codes.DeadlineExceeded)
}
if _, err := tc.FullDuplexCall(ctx); status.Code(err) != codes.DeadlineExceeded {
t.Fatalf("TestService/FullDuplexCall(_) = _, %v, want %s", err, codes.DeadlineExceeded)
}
}
func (s) TestServiceConfigTimeoutTD(t *testing.T) {
for _, e := range listTestEnv() {
testServiceConfigTimeoutTD(t, e)
}
}
func testServiceConfigTimeoutTD(t *testing.T, e env) {
te, ch := testServiceConfigSetupTD(t, e)
defer te.tearDown()
// Case1: Client API sets timeout to be 1ns and ServiceConfig sets timeout
// to be 1hr. Timeout should be 1ns (min of 1ns and 1hr) and the rpc will
// wait until deadline exceeds.
mc := grpc.MethodConfig{
Timeout: newDuration(time.Hour),
}
m := make(map[string]grpc.MethodConfig)
m["/grpc.testing.TestService/EmptyCall"] = mc
m["/grpc.testing.TestService/FullDuplexCall"] = mc
sc := grpc.ServiceConfig{
Methods: m,
}
ch <- sc
cc := te.clientConn()
tc := testgrpc.NewTestServiceClient(cc)
// The following RPCs are expected to become non-fail-fast ones with 1ns deadline.
ctx, cancel := context.WithTimeout(context.Background(), time.Nanosecond)
if _, err := tc.EmptyCall(ctx, &testpb.Empty{}, grpc.WaitForReady(true)); status.Code(err) != codes.DeadlineExceeded {
t.Fatalf("TestService/EmptyCall(_, _) = _, %v, want _, %s", err, codes.DeadlineExceeded)
}
cancel()
ctx, cancel = context.WithTimeout(context.Background(), time.Nanosecond)
if _, err := tc.FullDuplexCall(ctx, grpc.WaitForReady(true)); status.Code(err) != codes.DeadlineExceeded {
t.Fatalf("TestService/FullDuplexCall(_) = _, %v, want %s", err, codes.DeadlineExceeded)
}
cancel()
// Generate a service config update.
// Case2: Client API sets timeout to be the default and ServiceConfig sets
// timeout to be 1ns. Timeout should be 1ns (min of 1ns and the default)
// and the rpc will wait until deadline exceeds.
mc.Timeout = newDuration(time.Nanosecond)
m = make(map[string]grpc.MethodConfig)
m["/grpc.testing.TestService/EmptyCall"] = mc
m["/grpc.testing.TestService/FullDuplexCall"] = mc
sc = grpc.ServiceConfig{
Methods: m,
}
ch <- sc
// Wait for the new service config to take effect.
ctx, cancel = context.WithTimeout(context.Background(), defaultTestTimeout)
defer cancel()
for ; ctx.Err() == nil; <-time.After(time.Millisecond) {
mc = cc.GetMethodConfig("/grpc.testing.TestService/FullDuplexCall")
if *mc.Timeout == time.Nanosecond {
break
}
}
if ctx.Err() != nil {
t.Fatalf("Timeout when waiting for service config to take effect")
}
ctx, cancel = context.WithTimeout(context.Background(), defaultTestTimeout)
defer cancel()
if _, err := tc.EmptyCall(ctx, &testpb.Empty{}, grpc.WaitForReady(true)); status.Code(err) != codes.DeadlineExceeded || ctx.Err() != nil {
t.Fatalf("TestService/EmptyCall(_, _) = _, %v and ctx.Err() = %v; want _, %s and ctx.Err() = nil", err, ctx.Err(), codes.DeadlineExceeded)
}
if _, err := tc.FullDuplexCall(ctx, grpc.WaitForReady(true)); status.Code(err) != codes.DeadlineExceeded || ctx.Err() != nil {
t.Fatalf("TestService/FullDuplexCall(_) = _, %v and ctx.Err() = %v; want _, %s and ctx.Err() = nil", err, ctx.Err(), codes.DeadlineExceeded)
}
}
func (s) TestServiceConfigMaxMsgSizeTD(t *testing.T) {
for _, e := range listTestEnv() {
testServiceConfigMaxMsgSizeTD(t, e)
}
}
func testServiceConfigMaxMsgSizeTD(t *testing.T, e env) {
// Setting up values and objects shared across all test cases.
const smallSize = 1
const largeSize = 1024
const extraLargeSize = 2048
smallPayload, err := newPayload(testpb.PayloadType_COMPRESSABLE, smallSize)
if err != nil {
t.Fatal(err)
}
largePayload, err := newPayload(testpb.PayloadType_COMPRESSABLE, largeSize)
if err != nil {
t.Fatal(err)
}
extraLargePayload, err := newPayload(testpb.PayloadType_COMPRESSABLE, extraLargeSize)
if err != nil {
t.Fatal(err)
}
mc := grpc.MethodConfig{
MaxReqSize: newInt(extraLargeSize),
MaxRespSize: newInt(extraLargeSize),
}
m := make(map[string]grpc.MethodConfig)
m["/grpc.testing.TestService/UnaryCall"] = mc
m["/grpc.testing.TestService/FullDuplexCall"] = mc
sc := grpc.ServiceConfig{
Methods: m,
}
// Case1: sc set maxReqSize to 2048 (send), maxRespSize to 2048 (recv).
te1, ch1 := testServiceConfigSetupTD(t, e)
te1.startServer(&testServer{security: e.security})
defer te1.tearDown()
ch1 <- sc
tc := testgrpc.NewTestServiceClient(te1.clientConn())
req := &testpb.SimpleRequest{
ResponseType: testpb.PayloadType_COMPRESSABLE,
ResponseSize: int32(extraLargeSize),
Payload: smallPayload,
}
ctx, cancel := context.WithTimeout(context.Background(), defaultTestTimeout)
defer cancel()
// Test for unary RPC recv.
if _, err := tc.UnaryCall(ctx, req); err == nil || status.Code(err) != codes.ResourceExhausted {
t.Fatalf("TestService/UnaryCall(_, _) = _, %v, want _, error code: %s", err, codes.ResourceExhausted)
}
// Test for unary RPC send.
req.Payload = extraLargePayload
req.ResponseSize = int32(smallSize)
if _, err := tc.UnaryCall(ctx, req); err == nil || status.Code(err) != codes.ResourceExhausted {
t.Fatalf("TestService/UnaryCall(_, _) = _, %v, want _, error code: %s", err, codes.ResourceExhausted)
}
// Test for streaming RPC recv.
respParam := []*testpb.ResponseParameters{
{
Size: int32(extraLargeSize),
},
}
sreq := &testpb.StreamingOutputCallRequest{
ResponseType: testpb.PayloadType_COMPRESSABLE,
ResponseParameters: respParam,
Payload: smallPayload,
}
stream, err := tc.FullDuplexCall(te1.ctx)
if err != nil {
t.Fatalf("%v.FullDuplexCall(_) = _, %v, want <nil>", tc, err)
}
if err := stream.Send(sreq); err != nil {
t.Fatalf("%v.Send(%v) = %v, want <nil>", stream, sreq, err)
}
if _, err := stream.Recv(); err == nil || status.Code(err) != codes.ResourceExhausted {
t.Fatalf("%v.Recv() = _, %v, want _, error code: %s", stream, err, codes.ResourceExhausted)
}
// Test for streaming RPC send.
respParam[0].Size = int32(smallSize)
sreq.Payload = extraLargePayload
stream, err = tc.FullDuplexCall(te1.ctx)
if err != nil {
t.Fatalf("%v.FullDuplexCall(_) = _, %v, want <nil>", tc, err)
}
if err := stream.Send(sreq); err == nil || status.Code(err) != codes.ResourceExhausted {
t.Fatalf("%v.Send(%v) = %v, want _, error code: %s", stream, sreq, err, codes.ResourceExhausted)
}
// Case2: Client API set maxReqSize to 1024 (send), maxRespSize to 1024 (recv). Sc sets maxReqSize to 2048 (send), maxRespSize to 2048 (recv).
te2, ch2 := testServiceConfigSetupTD(t, e)
te2.maxClientReceiveMsgSize = newInt(1024)
te2.maxClientSendMsgSize = newInt(1024)
te2.startServer(&testServer{security: e.security})
defer te2.tearDown()
ch2 <- sc
tc = testgrpc.NewTestServiceClient(te2.clientConn())
// Test for unary RPC recv.
req.Payload = smallPayload
req.ResponseSize = int32(largeSize)
if _, err := tc.UnaryCall(ctx, req); err == nil || status.Code(err) != codes.ResourceExhausted {
t.Fatalf("TestService/UnaryCall(_, _) = _, %v, want _, error code: %s", err, codes.ResourceExhausted)
}
// Test for unary RPC send.
req.Payload = largePayload
req.ResponseSize = int32(smallSize)
if _, err := tc.UnaryCall(ctx, req); err == nil || status.Code(err) != codes.ResourceExhausted {
t.Fatalf("TestService/UnaryCall(_, _) = _, %v, want _, error code: %s", err, codes.ResourceExhausted)
}
// Test for streaming RPC recv.
stream, err = tc.FullDuplexCall(te2.ctx)
respParam[0].Size = int32(largeSize)
sreq.Payload = smallPayload
if err != nil {
t.Fatalf("%v.FullDuplexCall(_) = _, %v, want <nil>", tc, err)
}
if err := stream.Send(sreq); err != nil {
t.Fatalf("%v.Send(%v) = %v, want <nil>", stream, sreq, err)
}
if _, err := stream.Recv(); err == nil || status.Code(err) != codes.ResourceExhausted {
t.Fatalf("%v.Recv() = _, %v, want _, error code: %s", stream, err, codes.ResourceExhausted)
}
// Test for streaming RPC send.
respParam[0].Size = int32(smallSize)
sreq.Payload = largePayload
stream, err = tc.FullDuplexCall(te2.ctx)
if err != nil {
t.Fatalf("%v.FullDuplexCall(_) = _, %v, want <nil>", tc, err)
}
if err := stream.Send(sreq); err == nil || status.Code(err) != codes.ResourceExhausted {
t.Fatalf("%v.Send(%v) = %v, want _, error code: %s", stream, sreq, err, codes.ResourceExhausted)
}
// Case3: Client API set maxReqSize to 4096 (send), maxRespSize to 4096 (recv). Sc sets maxReqSize to 2048 (send), maxRespSize to 2048 (recv).
te3, ch3 := testServiceConfigSetupTD(t, e)
te3.maxClientReceiveMsgSize = newInt(4096)
te3.maxClientSendMsgSize = newInt(4096)
te3.startServer(&testServer{security: e.security})
defer te3.tearDown()
ch3 <- sc
tc = testgrpc.NewTestServiceClient(te3.clientConn())
// Test for unary RPC recv.
req.Payload = smallPayload
req.ResponseSize = int32(largeSize)
if _, err := tc.UnaryCall(ctx, req); err != nil {
t.Fatalf("TestService/UnaryCall(_, _) = _, %v, want <nil>", err)
}
req.ResponseSize = int32(extraLargeSize)
if _, err := tc.UnaryCall(ctx, req); err == nil || status.Code(err) != codes.ResourceExhausted {
t.Fatalf("TestService/UnaryCall(_, _) = _, %v, want _, error code: %s", err, codes.ResourceExhausted)
}
// Test for unary RPC send.
req.Payload = largePayload
req.ResponseSize = int32(smallSize)
if _, err := tc.UnaryCall(ctx, req); err != nil {
t.Fatalf("TestService/UnaryCall(_, _) = _, %v, want <nil>", err)
}
req.Payload = extraLargePayload
if _, err := tc.UnaryCall(ctx, req); err == nil || status.Code(err) != codes.ResourceExhausted {
t.Fatalf("TestService/UnaryCall(_, _) = _, %v, want _, error code: %s", err, codes.ResourceExhausted)
}
// Test for streaming RPC recv.
stream, err = tc.FullDuplexCall(te3.ctx)
if err != nil {
t.Fatalf("%v.FullDuplexCall(_) = _, %v, want <nil>", tc, err)
}
respParam[0].Size = int32(largeSize)
sreq.Payload = smallPayload
if err := stream.Send(sreq); err != nil {
t.Fatalf("%v.Send(%v) = %v, want <nil>", stream, sreq, err)
}
if _, err := stream.Recv(); err != nil {
t.Fatalf("%v.Recv() = _, %v, want <nil>", stream, err)
}
respParam[0].Size = int32(extraLargeSize)
if err := stream.Send(sreq); err != nil {
t.Fatalf("%v.Send(%v) = %v, want <nil>", stream, sreq, err)
}
if _, err := stream.Recv(); err == nil || status.Code(err) != codes.ResourceExhausted {
t.Fatalf("%v.Recv() = _, %v, want _, error code: %s", stream, err, codes.ResourceExhausted)
}
// Test for streaming RPC send.
respParam[0].Size = int32(smallSize)
sreq.Payload = largePayload
stream, err = tc.FullDuplexCall(te3.ctx)
if err != nil {
t.Fatalf("%v.FullDuplexCall(_) = _, %v, want <nil>", tc, err)
}
if err := stream.Send(sreq); err != nil {
t.Fatalf("%v.Send(%v) = %v, want <nil>", stream, sreq, err)
}
sreq.Payload = extraLargePayload
if err := stream.Send(sreq); err == nil || status.Code(err) != codes.ResourceExhausted {
t.Fatalf("%v.Send(%v) = %v, want _, error code: %s", stream, sreq, err, codes.ResourceExhausted)
}
}