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connect_ext_test.go
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connect_ext_test.go
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// Copyright 2021-2023 Buf Technologies, Inc.
//
// 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 connect_test
import (
"bytes"
"compress/flate"
"compress/gzip"
"context"
"encoding/binary"
"errors"
"fmt"
"io"
"math"
"math/rand"
"net/http"
"net/http/httptest"
"strings"
"sync"
"testing"
"time"
"github.com/bufbuild/connect-go"
"github.com/bufbuild/connect-go/internal/assert"
"github.com/bufbuild/connect-go/internal/gen/connect/import/v1/importv1connect"
pingv1 "github.com/bufbuild/connect-go/internal/gen/connect/ping/v1"
"github.com/bufbuild/connect-go/internal/gen/connect/ping/v1/pingv1connect"
"google.golang.org/protobuf/proto"
"google.golang.org/protobuf/reflect/protoregistry"
)
const errorMessage = "oh no"
// The ping server implementation used in the tests returns errors if the
// client doesn't set a header, and the server sets headers and trailers on the
// response.
const (
headerValue = "some header value"
trailerValue = "some trailer value"
clientHeader = "Connect-Client-Header"
handlerHeader = "Connect-Handler-Header"
handlerTrailer = "Connect-Handler-Trailer"
clientMiddlewareErrorHeader = "Connect-Trigger-HTTP-Error"
)
func TestServer(t *testing.T) {
t.Parallel()
testPing := func(t *testing.T, client pingv1connect.PingServiceClient) { //nolint:thelper
t.Run("ping", func(t *testing.T) {
num := int64(42)
request := connect.NewRequest(&pingv1.PingRequest{Number: num})
request.Header().Set(clientHeader, headerValue)
expect := &pingv1.PingResponse{Number: num}
response, err := client.Ping(context.Background(), request)
assert.Nil(t, err)
assert.Equal(t, response.Msg, expect)
assert.Equal(t, response.Header().Values(handlerHeader), []string{headerValue})
assert.Equal(t, response.Trailer().Values(handlerTrailer), []string{trailerValue})
})
t.Run("zero_ping", func(t *testing.T) {
request := connect.NewRequest(&pingv1.PingRequest{})
request.Header().Set(clientHeader, headerValue)
response, err := client.Ping(context.Background(), request)
assert.Nil(t, err)
var expect pingv1.PingResponse
assert.Equal(t, response.Msg, &expect)
assert.Equal(t, response.Header().Values(handlerHeader), []string{headerValue})
assert.Equal(t, response.Trailer().Values(handlerTrailer), []string{trailerValue})
})
t.Run("large_ping", func(t *testing.T) {
// Using a large payload splits the request and response over multiple
// packets, ensuring that we're managing HTTP readers and writers
// correctly.
if testing.Short() {
t.Skipf("skipping %s test in short mode", t.Name())
}
hellos := strings.Repeat("hello", 1024*1024) // ~5mb
request := connect.NewRequest(&pingv1.PingRequest{Text: hellos})
request.Header().Set(clientHeader, headerValue)
response, err := client.Ping(context.Background(), request)
assert.Nil(t, err)
assert.Equal(t, response.Msg.Text, hellos)
assert.Equal(t, response.Header().Values(handlerHeader), []string{headerValue})
assert.Equal(t, response.Trailer().Values(handlerTrailer), []string{trailerValue})
})
t.Run("ping_error", func(t *testing.T) {
_, err := client.Ping(
context.Background(),
connect.NewRequest(&pingv1.PingRequest{}),
)
assert.Equal(t, connect.CodeOf(err), connect.CodeInvalidArgument)
})
t.Run("ping_timeout", func(t *testing.T) {
ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(-time.Second))
defer cancel()
request := connect.NewRequest(&pingv1.PingRequest{})
request.Header().Set(clientHeader, headerValue)
_, err := client.Ping(ctx, request)
assert.Equal(t, connect.CodeOf(err), connect.CodeDeadlineExceeded)
})
}
testSum := func(t *testing.T, client pingv1connect.PingServiceClient) { //nolint:thelper
t.Run("sum", func(t *testing.T) {
const (
upTo = 10
expect = 55 // 1+10 + 2+9 + ... + 5+6 = 55
)
stream := client.Sum(context.Background())
stream.RequestHeader().Set(clientHeader, headerValue)
for i := int64(1); i <= upTo; i++ {
err := stream.Send(&pingv1.SumRequest{Number: i})
assert.Nil(t, err, assert.Sprintf("send %d", i))
}
response, err := stream.CloseAndReceive()
assert.Nil(t, err)
assert.Equal(t, response.Msg.Sum, expect)
assert.Equal(t, response.Header().Values(handlerHeader), []string{headerValue})
assert.Equal(t, response.Trailer().Values(handlerTrailer), []string{trailerValue})
})
t.Run("sum_error", func(t *testing.T) {
stream := client.Sum(context.Background())
if err := stream.Send(&pingv1.SumRequest{Number: 1}); err != nil {
assert.ErrorIs(t, err, io.EOF)
assert.Equal(t, connect.CodeOf(err), connect.CodeUnknown)
}
_, err := stream.CloseAndReceive()
assert.Equal(t, connect.CodeOf(err), connect.CodeInvalidArgument)
})
t.Run("sum_close_and_receive_without_send", func(t *testing.T) {
stream := client.Sum(context.Background())
stream.RequestHeader().Set(clientHeader, headerValue)
got, err := stream.CloseAndReceive()
assert.Nil(t, err)
assert.Equal(t, got.Msg, &pingv1.SumResponse{}) // receive header only stream
assert.Equal(t, got.Header().Values(handlerHeader), []string{headerValue})
})
}
testCountUp := func(t *testing.T, client pingv1connect.PingServiceClient) { //nolint:thelper
t.Run("count_up", func(t *testing.T) {
const upTo = 5
got := make([]int64, 0, upTo)
expect := make([]int64, 0, upTo)
for i := 1; i <= upTo; i++ {
expect = append(expect, int64(i))
}
request := connect.NewRequest(&pingv1.CountUpRequest{Number: upTo})
request.Header().Set(clientHeader, headerValue)
stream, err := client.CountUp(context.Background(), request)
assert.Nil(t, err)
for stream.Receive() {
got = append(got, stream.Msg().Number)
}
assert.Nil(t, stream.Err())
assert.Nil(t, stream.Close())
assert.Equal(t, got, expect)
})
t.Run("count_up_error", func(t *testing.T) {
stream, err := client.CountUp(
context.Background(),
connect.NewRequest(&pingv1.CountUpRequest{Number: 1}),
)
assert.Nil(t, err)
for stream.Receive() {
t.Fatalf("expected error, shouldn't receive any messages")
}
assert.Equal(
t,
connect.CodeOf(stream.Err()),
connect.CodeInvalidArgument,
)
})
t.Run("count_up_timeout", func(t *testing.T) {
ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(-time.Second))
defer cancel()
_, err := client.CountUp(ctx, connect.NewRequest(&pingv1.CountUpRequest{Number: 1}))
assert.NotNil(t, err)
assert.Equal(t, connect.CodeOf(err), connect.CodeDeadlineExceeded)
})
}
testCumSum := func(t *testing.T, client pingv1connect.PingServiceClient, expectSuccess bool) { //nolint:thelper
t.Run("cumsum", func(t *testing.T) {
send := []int64{3, 5, 1}
expect := []int64{3, 8, 9}
var got []int64
stream := client.CumSum(context.Background())
stream.RequestHeader().Set(clientHeader, headerValue)
if !expectSuccess { // server doesn't support HTTP/2
failNoHTTP2(t, stream)
return
}
var wg sync.WaitGroup
wg.Add(2)
go func() {
defer wg.Done()
for i, n := range send {
err := stream.Send(&pingv1.CumSumRequest{Number: n})
assert.Nil(t, err, assert.Sprintf("send error #%d", i))
}
assert.Nil(t, stream.CloseRequest())
}()
go func() {
defer wg.Done()
for {
msg, err := stream.Receive()
if errors.Is(err, io.EOF) {
break
}
assert.Nil(t, err)
got = append(got, msg.Sum)
}
assert.Nil(t, stream.CloseResponse())
}()
wg.Wait()
assert.Equal(t, got, expect)
assert.Equal(t, stream.ResponseHeader().Values(handlerHeader), []string{headerValue})
assert.Equal(t, stream.ResponseTrailer().Values(handlerTrailer), []string{trailerValue})
})
t.Run("cumsum_error", func(t *testing.T) {
stream := client.CumSum(context.Background())
if !expectSuccess { // server doesn't support HTTP/2
failNoHTTP2(t, stream)
return
}
if err := stream.Send(&pingv1.CumSumRequest{Number: 42}); err != nil {
assert.ErrorIs(t, err, io.EOF)
assert.Equal(t, connect.CodeOf(err), connect.CodeUnknown)
}
// We didn't send the headers the server expects, so we should now get an
// error.
_, err := stream.Receive()
assert.Equal(t, connect.CodeOf(err), connect.CodeInvalidArgument)
assert.True(t, connect.IsWireError(err))
})
t.Run("cumsum_empty_stream", func(t *testing.T) {
stream := client.CumSum(context.Background())
stream.RequestHeader().Set(clientHeader, headerValue)
if !expectSuccess { // server doesn't support HTTP/2
failNoHTTP2(t, stream)
return
}
// Deliberately closing with calling Send to test the behavior of Receive.
// This test case is based on the grpc interop tests.
assert.Nil(t, stream.CloseRequest())
response, err := stream.Receive()
assert.Nil(t, response)
assert.True(t, errors.Is(err, io.EOF))
assert.False(t, connect.IsWireError(err))
assert.Nil(t, stream.CloseResponse()) // clean-up the stream
})
t.Run("cumsum_cancel_after_first_response", func(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
stream := client.CumSum(ctx)
stream.RequestHeader().Set(clientHeader, headerValue)
if !expectSuccess { // server doesn't support HTTP/2
failNoHTTP2(t, stream)
cancel()
return
}
var got []int64
expect := []int64{42}
if err := stream.Send(&pingv1.CumSumRequest{Number: 42}); err != nil {
assert.ErrorIs(t, err, io.EOF)
assert.Equal(t, connect.CodeOf(err), connect.CodeUnknown)
}
msg, err := stream.Receive()
assert.Nil(t, err)
got = append(got, msg.Sum)
cancel()
_, err = stream.Receive()
assert.Equal(t, connect.CodeOf(err), connect.CodeCanceled)
assert.Equal(t, got, expect)
assert.False(t, connect.IsWireError(err))
})
t.Run("cumsum_cancel_before_send", func(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
stream := client.CumSum(ctx)
stream.RequestHeader().Set(clientHeader, headerValue)
assert.Nil(t, stream.Send(&pingv1.CumSumRequest{Number: 8}))
cancel()
// On a subsequent send, ensure that we are still catching context
// cancellations.
err := stream.Send(&pingv1.CumSumRequest{Number: 19})
assert.Equal(t, connect.CodeOf(err), connect.CodeCanceled, assert.Sprintf("%v", err))
assert.False(t, connect.IsWireError(err))
})
}
testErrors := func(t *testing.T, client pingv1connect.PingServiceClient) { //nolint:thelper
assertIsHTTPMiddlewareError := func(tb testing.TB, err error) {
tb.Helper()
assert.NotNil(tb, err)
var connectErr *connect.Error
assert.True(tb, errors.As(err, &connectErr))
expect := newHTTPMiddlewareError()
assert.Equal(tb, connectErr.Code(), expect.Code())
assert.Equal(tb, connectErr.Message(), expect.Message())
for k, v := range expect.Meta() {
assert.Equal(tb, connectErr.Meta().Values(k), v)
}
assert.Equal(tb, len(connectErr.Details()), len(expect.Details()))
}
t.Run("errors", func(t *testing.T) {
request := connect.NewRequest(&pingv1.FailRequest{
Code: int32(connect.CodeResourceExhausted),
})
request.Header().Set(clientHeader, headerValue)
response, err := client.Fail(context.Background(), request)
assert.Nil(t, response)
assert.NotNil(t, err)
var connectErr *connect.Error
ok := errors.As(err, &connectErr)
assert.True(t, ok, assert.Sprintf("conversion to *connect.Error"))
assert.True(t, connect.IsWireError(err))
assert.Equal(t, connectErr.Code(), connect.CodeResourceExhausted)
assert.Equal(t, connectErr.Error(), "resource_exhausted: "+errorMessage)
assert.Zero(t, connectErr.Details())
assert.Equal(t, connectErr.Meta().Values(handlerHeader), []string{headerValue})
assert.Equal(t, connectErr.Meta().Values(handlerTrailer), []string{trailerValue})
})
t.Run("middleware_errors_unary", func(t *testing.T) {
request := connect.NewRequest(&pingv1.PingRequest{})
request.Header().Set(clientMiddlewareErrorHeader, headerValue)
_, err := client.Ping(context.Background(), request)
assertIsHTTPMiddlewareError(t, err)
})
t.Run("middleware_errors_streaming", func(t *testing.T) {
request := connect.NewRequest(&pingv1.CountUpRequest{Number: 10})
request.Header().Set(clientMiddlewareErrorHeader, headerValue)
stream, err := client.CountUp(context.Background(), request)
assert.Nil(t, err)
assert.False(t, stream.Receive())
assertIsHTTPMiddlewareError(t, stream.Err())
})
}
testMatrix := func(t *testing.T, server *httptest.Server, bidi bool) { //nolint:thelper
run := func(t *testing.T, opts ...connect.ClientOption) {
t.Helper()
client := pingv1connect.NewPingServiceClient(server.Client(), server.URL, opts...)
testPing(t, client)
testSum(t, client)
testCountUp(t, client)
testCumSum(t, client, bidi)
testErrors(t, client)
}
t.Run("connect", func(t *testing.T) {
t.Run("proto", func(t *testing.T) {
run(t)
})
t.Run("proto_gzip", func(t *testing.T) {
run(t, connect.WithSendGzip())
})
t.Run("json_gzip", func(t *testing.T) {
run(
t,
connect.WithProtoJSON(),
connect.WithSendGzip(),
)
})
})
t.Run("grpc", func(t *testing.T) {
t.Run("proto", func(t *testing.T) {
run(t, connect.WithGRPC())
})
t.Run("proto_gzip", func(t *testing.T) {
run(t, connect.WithGRPC(), connect.WithSendGzip())
})
t.Run("json_gzip", func(t *testing.T) {
run(
t,
connect.WithGRPC(),
connect.WithProtoJSON(),
connect.WithSendGzip(),
)
})
})
t.Run("grpcweb", func(t *testing.T) {
t.Run("proto", func(t *testing.T) {
run(t, connect.WithGRPCWeb())
})
t.Run("proto_gzip", func(t *testing.T) {
run(t, connect.WithGRPCWeb(), connect.WithSendGzip())
})
t.Run("json_gzip", func(t *testing.T) {
run(
t,
connect.WithGRPCWeb(),
connect.WithProtoJSON(),
connect.WithSendGzip(),
)
})
})
}
mux := http.NewServeMux()
pingRoute, pingHandler := pingv1connect.NewPingServiceHandler(
pingServer{checkMetadata: true},
)
errorWriter := connect.NewErrorWriter()
// Add some net/http middleware to the ping service so we can also exercise ErrorWriter.
mux.Handle(pingRoute, http.HandlerFunc(func(response http.ResponseWriter, request *http.Request) {
if request.Header.Get(clientMiddlewareErrorHeader) != "" {
defer request.Body.Close()
if _, err := io.Copy(io.Discard, request.Body); err != nil {
t.Errorf("drain request body: %v", err)
}
if !errorWriter.IsSupported(request) {
t.Errorf("ErrorWriter doesn't support Content-Type %q", request.Header.Get("Content-Type"))
}
if err := errorWriter.Write(response, request, newHTTPMiddlewareError()); err != nil {
t.Errorf("send RPC error from HTTP middleware: %v", err)
}
return
}
pingHandler.ServeHTTP(response, request)
}))
t.Run("http1", func(t *testing.T) {
t.Parallel()
server := httptest.NewServer(mux)
defer server.Close()
testMatrix(t, server, false /* bidi */)
})
t.Run("http2", func(t *testing.T) {
t.Parallel()
server := httptest.NewUnstartedServer(mux)
server.EnableHTTP2 = true
server.StartTLS()
defer server.Close()
testMatrix(t, server, true /* bidi */)
})
}
func TestConcurrentStreams(t *testing.T) {
if testing.Short() {
t.Skipf("skipping %s test in short mode", t.Name())
}
t.Parallel()
mux := http.NewServeMux()
mux.Handle(pingv1connect.NewPingServiceHandler(pingServer{}))
server := httptest.NewUnstartedServer(mux)
server.EnableHTTP2 = true
server.StartTLS()
t.Cleanup(server.Close)
var done, start sync.WaitGroup
start.Add(1)
for i := 0; i < 100; i++ {
done.Add(1)
go func() {
defer done.Done()
client := pingv1connect.NewPingServiceClient(server.Client(), server.URL)
var total int64
sum := client.CumSum(context.Background())
start.Wait()
for i := 0; i < 100; i++ {
num := rand.Int63n(1000) //nolint: gosec
total += num
if err := sum.Send(&pingv1.CumSumRequest{Number: num}); err != nil {
t.Errorf("failed to send request: %v", err)
break
}
resp, err := sum.Receive()
if err != nil {
t.Errorf("failed to receive from stream: %v", err)
break
}
if total != resp.Sum {
t.Errorf("expected %d == %d", total, resp.Sum)
break
}
}
if err := sum.CloseRequest(); err != nil {
t.Errorf("failed to close request: %v", err)
}
if err := sum.CloseResponse(); err != nil {
t.Errorf("failed to close response: %v", err)
}
}()
}
start.Done()
done.Wait()
}
func TestHeaderBasic(t *testing.T) {
t.Parallel()
const (
key = "Test-Key"
cval = "client value"
hval = "client value"
)
pingServer := &pluggablePingServer{
ping: func(ctx context.Context, request *connect.Request[pingv1.PingRequest]) (*connect.Response[pingv1.PingResponse], error) {
assert.Equal(t, request.Header().Get(key), cval)
response := connect.NewResponse(&pingv1.PingResponse{})
response.Header().Set(key, hval)
return response, nil
},
}
mux := http.NewServeMux()
mux.Handle(pingv1connect.NewPingServiceHandler(pingServer))
server := httptest.NewServer(mux)
defer server.Close()
client := pingv1connect.NewPingServiceClient(server.Client(), server.URL)
request := connect.NewRequest(&pingv1.PingRequest{})
request.Header().Set(key, cval)
response, err := client.Ping(context.Background(), request)
assert.Nil(t, err)
assert.Equal(t, response.Header().Get(key), hval)
}
func TestTimeoutParsing(t *testing.T) {
t.Parallel()
const timeout = 10 * time.Minute
pingServer := &pluggablePingServer{
ping: func(ctx context.Context, request *connect.Request[pingv1.PingRequest]) (*connect.Response[pingv1.PingResponse], error) {
deadline, ok := ctx.Deadline()
assert.True(t, ok)
remaining := time.Until(deadline)
assert.True(t, remaining > 0)
assert.True(t, remaining <= timeout)
return connect.NewResponse(&pingv1.PingResponse{}), nil
},
}
mux := http.NewServeMux()
mux.Handle(pingv1connect.NewPingServiceHandler(pingServer))
server := httptest.NewServer(mux)
defer server.Close()
ctx, cancel := context.WithTimeout(context.Background(), timeout)
defer cancel()
client := pingv1connect.NewPingServiceClient(server.Client(), server.URL)
_, err := client.Ping(ctx, connect.NewRequest(&pingv1.PingRequest{}))
assert.Nil(t, err)
}
func TestFailCodec(t *testing.T) {
t.Parallel()
handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {})
server := httptest.NewServer(handler)
defer server.Close()
client := pingv1connect.NewPingServiceClient(
server.Client(),
server.URL,
connect.WithCodec(failCodec{}),
)
stream := client.CumSum(context.Background())
err := stream.Send(&pingv1.CumSumRequest{})
var connectErr *connect.Error
assert.NotNil(t, err)
assert.True(t, errors.As(err, &connectErr))
assert.Equal(t, connectErr.Code(), connect.CodeInternal)
}
func TestContextError(t *testing.T) {
t.Parallel()
handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {})
server := httptest.NewServer(handler)
defer server.Close()
client := pingv1connect.NewPingServiceClient(
server.Client(),
server.URL,
)
ctx, cancel := context.WithCancel(context.Background())
cancel()
stream := client.CumSum(ctx)
err := stream.Send(nil)
var connectErr *connect.Error
assert.NotNil(t, err)
assert.True(t, errors.As(err, &connectErr))
assert.Equal(t, connectErr.Code(), connect.CodeCanceled)
assert.False(t, connect.IsWireError(err))
}
func TestGRPCMarshalStatusError(t *testing.T) {
t.Parallel()
mux := http.NewServeMux()
mux.Handle(pingv1connect.NewPingServiceHandler(
pingServer{},
connect.WithCodec(failCodec{}),
))
server := httptest.NewUnstartedServer(mux)
server.EnableHTTP2 = true
server.StartTLS()
defer server.Close()
assertInternalError := func(tb testing.TB, opts ...connect.ClientOption) {
tb.Helper()
client := pingv1connect.NewPingServiceClient(server.Client(), server.URL, opts...)
request := connect.NewRequest(&pingv1.FailRequest{Code: int32(connect.CodeResourceExhausted)})
_, err := client.Fail(context.Background(), request)
tb.Log(err)
assert.NotNil(t, err)
var connectErr *connect.Error
ok := errors.As(err, &connectErr)
assert.True(t, ok)
assert.Equal(t, connectErr.Code(), connect.CodeInternal)
assert.True(
t,
strings.HasSuffix(connectErr.Message(), ": boom"),
)
}
// Only applies to gRPC protocols, where we're marshaling the Status protobuf
// message to binary.
assertInternalError(t, connect.WithGRPC())
assertInternalError(t, connect.WithGRPCWeb())
}
func TestGRPCMissingTrailersError(t *testing.T) {
t.Parallel()
trimTrailers := func(handler http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
r.Header.Del("Te")
handler.ServeHTTP(&trimTrailerWriter{w: w}, r)
})
}
mux := http.NewServeMux()
mux.Handle(pingv1connect.NewPingServiceHandler(
pingServer{checkMetadata: true},
))
server := httptest.NewUnstartedServer(trimTrailers(mux))
server.EnableHTTP2 = true
server.StartTLS()
t.Cleanup(server.Close)
client := pingv1connect.NewPingServiceClient(server.Client(), server.URL, connect.WithGRPC())
assertErrorNoTrailers := func(t *testing.T, err error) {
t.Helper()
assert.NotNil(t, err)
var connectErr *connect.Error
ok := errors.As(err, &connectErr)
assert.True(t, ok)
assert.Equal(t, connectErr.Code(), connect.CodeInternal)
assert.True(
t,
strings.HasSuffix(connectErr.Message(), "gRPC protocol error: no Grpc-Status trailer"),
)
}
assertNilOrEOF := func(t *testing.T, err error) {
t.Helper()
if err != nil {
assert.ErrorIs(t, err, io.EOF)
}
}
t.Run("ping", func(t *testing.T) {
t.Parallel()
request := connect.NewRequest(&pingv1.PingRequest{Number: 1, Text: "foobar"})
_, err := client.Ping(context.Background(), request)
assertErrorNoTrailers(t, err)
})
t.Run("sum", func(t *testing.T) {
t.Parallel()
stream := client.Sum(context.Background())
err := stream.Send(&pingv1.SumRequest{Number: 1})
assertNilOrEOF(t, err)
_, err = stream.CloseAndReceive()
assertErrorNoTrailers(t, err)
})
t.Run("count_up", func(t *testing.T) {
t.Parallel()
stream, err := client.CountUp(context.Background(), connect.NewRequest(&pingv1.CountUpRequest{Number: 10}))
assert.Nil(t, err)
assert.False(t, stream.Receive())
assertErrorNoTrailers(t, stream.Err())
})
t.Run("cumsum", func(t *testing.T) {
t.Parallel()
stream := client.CumSum(context.Background())
assertNilOrEOF(t, stream.Send(&pingv1.CumSumRequest{Number: 10}))
_, err := stream.Receive()
assertErrorNoTrailers(t, err)
assert.Nil(t, stream.CloseResponse())
})
t.Run("cumsum_empty_stream", func(t *testing.T) {
t.Parallel()
stream := client.CumSum(context.Background())
assert.Nil(t, stream.CloseRequest())
response, err := stream.Receive()
assert.Nil(t, response)
assertErrorNoTrailers(t, err)
assert.Nil(t, stream.CloseResponse())
})
}
func TestUnavailableIfHostInvalid(t *testing.T) {
t.Parallel()
client := pingv1connect.NewPingServiceClient(
http.DefaultClient,
"https://api.invalid/",
)
_, err := client.Ping(
context.Background(),
connect.NewRequest(&pingv1.PingRequest{}),
)
assert.NotNil(t, err)
assert.Equal(t, connect.CodeOf(err), connect.CodeUnavailable)
}
func TestBidiRequiresHTTP2(t *testing.T) {
t.Parallel()
handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
_, err := io.WriteString(w, "hello world")
assert.Nil(t, err)
})
server := httptest.NewServer(handler)
defer server.Close()
client := pingv1connect.NewPingServiceClient(
server.Client(),
server.URL,
)
stream := client.CumSum(context.Background())
assert.Nil(t, stream.Send(&pingv1.CumSumRequest{}))
assert.Nil(t, stream.CloseRequest())
_, err := stream.Receive()
assert.NotNil(t, err)
var connectErr *connect.Error
assert.True(t, errors.As(err, &connectErr))
assert.Equal(t, connectErr.Code(), connect.CodeUnimplemented)
assert.True(
t,
strings.HasSuffix(connectErr.Message(), ": bidi streams require at least HTTP/2"),
)
}
func TestCompressMinBytesClient(t *testing.T) {
t.Parallel()
assertContentType := func(tb testing.TB, text, expect string) {
tb.Helper()
mux := http.NewServeMux()
mux.Handle("/", http.HandlerFunc(func(writer http.ResponseWriter, request *http.Request) {
assert.Equal(tb, request.Header.Get("Content-Encoding"), expect)
}))
server := httptest.NewServer(mux)
tb.Cleanup(server.Close)
_, err := pingv1connect.NewPingServiceClient(
server.Client(),
server.URL,
connect.WithSendGzip(),
connect.WithCompressMinBytes(8),
).Ping(context.Background(), connect.NewRequest(&pingv1.PingRequest{Text: text}))
assert.Nil(tb, err)
}
t.Run("request_uncompressed", func(t *testing.T) {
t.Parallel()
assertContentType(t, "ping", "")
})
t.Run("request_compressed", func(t *testing.T) {
t.Parallel()
assertContentType(t, "pingping", "gzip")
})
t.Run("request_uncompressed", func(t *testing.T) {
t.Parallel()
assertContentType(t, "ping", "")
})
t.Run("request_compressed", func(t *testing.T) {
t.Parallel()
assertContentType(t, strings.Repeat("ping", 2), "gzip")
})
}
func TestCompressMinBytes(t *testing.T) {
t.Parallel()
mux := http.NewServeMux()
mux.Handle(pingv1connect.NewPingServiceHandler(
pingServer{},
connect.WithCompressMinBytes(8),
))
server := httptest.NewServer(mux)
t.Cleanup(func() {
server.Close()
})
client := server.Client()
getPingResponse := func(t *testing.T, pingText string) *http.Response {
t.Helper()
request := &pingv1.PingRequest{Text: pingText}
requestBytes, err := proto.Marshal(request)
assert.Nil(t, err)
req, err := http.NewRequestWithContext(
context.Background(),
http.MethodPost,
server.URL+"/"+pingv1connect.PingServiceName+"/Ping",
bytes.NewReader(requestBytes),
)
assert.Nil(t, err)
req.Header.Set("Content-Type", "application/proto")
response, err := client.Do(req)
assert.Nil(t, err)
t.Cleanup(func() {
assert.Nil(t, response.Body.Close())
})
return response
}
t.Run("response_uncompressed", func(t *testing.T) {
t.Parallel()
assert.False(t, getPingResponse(t, "ping").Uncompressed) //nolint:bodyclose
})
t.Run("response_compressed", func(t *testing.T) {
t.Parallel()
assert.True(t, getPingResponse(t, strings.Repeat("ping", 2)).Uncompressed) //nolint:bodyclose
})
}
func TestCustomCompression(t *testing.T) {
t.Parallel()
mux := http.NewServeMux()
compressionName := "deflate"
decompressor := func() connect.Decompressor {
// Need to instantiate with a reader - before decompressing Reset(io.Reader) is called
return newDeflateReader(strings.NewReader(""))
}
compressor := func() connect.Compressor {
w, err := flate.NewWriter(&strings.Builder{}, flate.DefaultCompression)
if err != nil {
t.Fatalf("failed to create flate writer: %v", err)
}
return w
}
mux.Handle(pingv1connect.NewPingServiceHandler(
pingServer{},
connect.WithCompression(compressionName, decompressor, compressor),
))
server := httptest.NewServer(mux)
defer server.Close()
client := pingv1connect.NewPingServiceClient(server.Client(),
server.URL,
connect.WithAcceptCompression(compressionName, decompressor, compressor),
connect.WithSendCompression(compressionName),
)
request := &pingv1.PingRequest{Text: "testing 1..2..3.."}
response, err := client.Ping(context.Background(), connect.NewRequest(request))
assert.Nil(t, err)
assert.Equal(t, response.Msg, &pingv1.PingResponse{Text: request.Text})
}
func TestClientWithoutGzipSupport(t *testing.T) {
// See https://github.com/bufbuild/connect-go/pull/349 for why we want to
// support this. TL;DR is that Microsoft's dapr sidecar can't handle
// asymmetric compression.
t.Parallel()
mux := http.NewServeMux()
mux.Handle(pingv1connect.NewPingServiceHandler(pingServer{}))
server := httptest.NewServer(mux)
defer server.Close()
client := pingv1connect.NewPingServiceClient(server.Client(),
server.URL,
connect.WithAcceptCompression("gzip", nil, nil),
connect.WithSendGzip(),
)
request := &pingv1.PingRequest{Text: "gzip me!"}
_, err := client.Ping(context.Background(), connect.NewRequest(request))
assert.NotNil(t, err)
assert.Equal(t, connect.CodeOf(err), connect.CodeUnknown)
assert.True(t, strings.Contains(err.Error(), "unknown compression"))
}
func TestInvalidHeaderTimeout(t *testing.T) {
t.Parallel()
mux := http.NewServeMux()
mux.Handle(pingv1connect.NewPingServiceHandler(pingServer{}))
server := httptest.NewServer(mux)
t.Cleanup(func() {
server.Close()
})
getPingResponseWithTimeout := func(t *testing.T, timeout string) *http.Response {
t.Helper()
request, err := http.NewRequestWithContext(
context.Background(),
http.MethodPost,
server.URL+"/"+pingv1connect.PingServiceName+"/Ping",
strings.NewReader("{}"),
)
assert.Nil(t, err)
request.Header.Set("Content-Type", "application/json")
request.Header.Set("Connect-Timeout-Ms", timeout)
response, err := server.Client().Do(request)
assert.Nil(t, err)
t.Cleanup(func() {
assert.Nil(t, response.Body.Close())
})
return response
}
t.Run("timeout_non_numeric", func(t *testing.T) {
t.Parallel()
assert.Equal(t, getPingResponseWithTimeout(t, "10s").StatusCode, http.StatusBadRequest) //nolint:bodyclose
})
t.Run("timeout_out_of_range", func(t *testing.T) {
t.Parallel()
assert.Equal(t, getPingResponseWithTimeout(t, "12345678901").StatusCode, http.StatusBadRequest) //nolint:bodyclose
})
}
func TestInterceptorReturnsWrongType(t *testing.T) {
t.Parallel()
mux := http.NewServeMux()
mux.Handle(pingv1connect.NewPingServiceHandler(pingServer{}))
server := httptest.NewServer(mux)
defer server.Close()
client := pingv1connect.NewPingServiceClient(server.Client(), server.URL, connect.WithInterceptors(connect.UnaryInterceptorFunc(func(next connect.UnaryFunc) connect.UnaryFunc {
return func(ctx context.Context, request connect.AnyRequest) (connect.AnyResponse, error) {
if _, err := next(ctx, request); err != nil {
return nil, err
}
return connect.NewResponse(&pingv1.CumSumResponse{
Sum: 1,
}), nil
}
})))
_, err := client.Ping(context.Background(), connect.NewRequest(&pingv1.PingRequest{Text: "hello!"}))
assert.NotNil(t, err)
var connectErr *connect.Error
assert.True(t, errors.As(err, &connectErr))
assert.Equal(t, connectErr.Code(), connect.CodeInternal)
assert.True(t, strings.Contains(connectErr.Message(), "unexpected client response type"))
}
func TestHandlerWithReadMaxBytes(t *testing.T) {
t.Parallel()
mux := http.NewServeMux()
readMaxBytes := 1024
mux.Handle(pingv1connect.NewPingServiceHandler(
pingServer{},
connect.WithReadMaxBytes(readMaxBytes),
))
readMaxBytesMatrix := func(t *testing.T, client pingv1connect.PingServiceClient, compressed bool) {
t.Helper()
t.Run("equal_read_max", func(t *testing.T) {
t.Parallel()
// Serializes to exactly readMaxBytes (1024) - no errors expected
pingRequest := &pingv1.PingRequest{Text: strings.Repeat("a", 1021)}
assert.Equal(t, proto.Size(pingRequest), readMaxBytes)
_, err := client.Ping(context.Background(), connect.NewRequest(pingRequest))
assert.Nil(t, err)
})
t.Run("read_max_plus_one", func(t *testing.T) {
t.Parallel()
// Serializes to readMaxBytes+1 (1025) - expect invalid argument.
// This will be over the limit after decompression but under with compression.
pingRequest := &pingv1.PingRequest{Text: strings.Repeat("a", 1022)}
if compressed {
compressedSize := gzipCompressedSize(t, pingRequest)
assert.True(t, compressedSize < readMaxBytes, assert.Sprintf("expected compressed size %d < %d", compressedSize, readMaxBytes))
}
_, err := client.Ping(context.Background(), connect.NewRequest(pingRequest))
assert.NotNil(t, err, assert.Sprintf("expected non-nil error for large message"))
assert.Equal(t, connect.CodeOf(err), connect.CodeResourceExhausted)
assert.True(t, strings.HasSuffix(err.Error(), fmt.Sprintf("message size %d is larger than configured max %d", proto.Size(pingRequest), readMaxBytes)))
})
t.Run("read_max_large", func(t *testing.T) {
t.Parallel()
if testing.Short() {
t.Skipf("skipping %s test in short mode", t.Name())
}
// Serializes to much larger than readMaxBytes (5 MiB)
pingRequest := &pingv1.PingRequest{Text: strings.Repeat("abcde", 1024*1024)}
expectedSize := proto.Size(pingRequest)
// With gzip request compression, the error should indicate the envelope size (before decompression) is too large.
if compressed {
expectedSize = gzipCompressedSize(t, pingRequest)
assert.True(t, expectedSize > readMaxBytes, assert.Sprintf("expected compressed size %d > %d", expectedSize, readMaxBytes))
}
_, err := client.Ping(context.Background(), connect.NewRequest(pingRequest))
assert.NotNil(t, err, assert.Sprintf("expected non-nil error for large message"))
assert.Equal(t, connect.CodeOf(err), connect.CodeResourceExhausted)
assert.Equal(t, err.Error(), fmt.Sprintf("resource_exhausted: message size %d is larger than configured max %d", expectedSize, readMaxBytes))
})
}
newHTTP2Server := func(t *testing.T) *httptest.Server {
t.Helper()
server := httptest.NewUnstartedServer(mux)
server.EnableHTTP2 = true
server.StartTLS()
t.Cleanup(server.Close)
return server
}
t.Run("connect", func(t *testing.T) {
t.Parallel()