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test_utils.go
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test_utils.go
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/*
*
* Copyright 2014, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
package interop
import (
"fmt"
"io"
"io/ioutil"
"strings"
"time"
"github.com/coreos/etcd/Godeps/_workspace/src/github.com/golang/protobuf/proto"
"github.com/coreos/etcd/Godeps/_workspace/src/golang.org/x/net/context"
"github.com/coreos/etcd/Godeps/_workspace/src/google.golang.org/grpc"
"github.com/coreos/etcd/Godeps/_workspace/src/google.golang.org/grpc/codes"
"github.com/coreos/etcd/Godeps/_workspace/src/google.golang.org/grpc/grpclog"
testpb "github.com/coreos/etcd/Godeps/_workspace/src/google.golang.org/grpc/interop/grpc_testing"
"github.com/coreos/etcd/Godeps/_workspace/src/google.golang.org/grpc/metadata"
"golang.org/x/oauth2"
"golang.org/x/oauth2/google"
)
var (
reqSizes = []int{27182, 8, 1828, 45904}
respSizes = []int{31415, 9, 2653, 58979}
largeReqSize = 271828
largeRespSize = 314159
)
func clientNewPayload(t testpb.PayloadType, size int) *testpb.Payload {
if size < 0 {
grpclog.Fatalf("Requested a response with invalid length %d", size)
}
body := make([]byte, size)
switch t {
case testpb.PayloadType_COMPRESSABLE:
case testpb.PayloadType_UNCOMPRESSABLE:
grpclog.Fatalf("PayloadType UNCOMPRESSABLE is not supported")
default:
grpclog.Fatalf("Unsupported payload type: %d", t)
}
return &testpb.Payload{
Type: t.Enum(),
Body: body,
}
}
// DoEmptyUnaryCall performs a unary RPC with empty request and response messages.
func DoEmptyUnaryCall(tc testpb.TestServiceClient) {
reply, err := tc.EmptyCall(context.Background(), &testpb.Empty{})
if err != nil {
grpclog.Fatal("/TestService/EmptyCall RPC failed: ", err)
}
if !proto.Equal(&testpb.Empty{}, reply) {
grpclog.Fatalf("/TestService/EmptyCall receives %v, want %v", reply, testpb.Empty{})
}
grpclog.Println("EmptyUnaryCall done")
}
// DoLargeUnaryCall performs a unary RPC with large payload in the request and response.
func DoLargeUnaryCall(tc testpb.TestServiceClient) {
pl := clientNewPayload(testpb.PayloadType_COMPRESSABLE, largeReqSize)
req := &testpb.SimpleRequest{
ResponseType: testpb.PayloadType_COMPRESSABLE.Enum(),
ResponseSize: proto.Int32(int32(largeRespSize)),
Payload: pl,
}
reply, err := tc.UnaryCall(context.Background(), req)
if err != nil {
grpclog.Fatal("/TestService/UnaryCall RPC failed: ", err)
}
t := reply.GetPayload().GetType()
s := len(reply.GetPayload().GetBody())
if t != testpb.PayloadType_COMPRESSABLE || s != largeRespSize {
grpclog.Fatalf("Got the reply with type %d len %d; want %d, %d", t, s, testpb.PayloadType_COMPRESSABLE, largeRespSize)
}
grpclog.Println("LargeUnaryCall done")
}
// DoClientStreaming performs a client streaming RPC.
func DoClientStreaming(tc testpb.TestServiceClient) {
stream, err := tc.StreamingInputCall(context.Background())
if err != nil {
grpclog.Fatalf("%v.StreamingInputCall(_) = _, %v", tc, err)
}
var sum int
for _, s := range reqSizes {
pl := clientNewPayload(testpb.PayloadType_COMPRESSABLE, s)
req := &testpb.StreamingInputCallRequest{
Payload: pl,
}
if err := stream.Send(req); err != nil {
grpclog.Fatalf("%v.Send(%v) = %v", stream, req, err)
}
sum += s
grpclog.Printf("Sent a request of size %d, aggregated size %d", s, sum)
}
reply, err := stream.CloseAndRecv()
if err != nil {
grpclog.Fatalf("%v.CloseAndRecv() got error %v, want %v", stream, err, nil)
}
if reply.GetAggregatedPayloadSize() != int32(sum) {
grpclog.Fatalf("%v.CloseAndRecv().GetAggregatePayloadSize() = %v; want %v", stream, reply.GetAggregatedPayloadSize(), sum)
}
grpclog.Println("ClientStreaming done")
}
// DoServerStreaming performs a server streaming RPC.
func DoServerStreaming(tc testpb.TestServiceClient) {
respParam := make([]*testpb.ResponseParameters, len(respSizes))
for i, s := range respSizes {
respParam[i] = &testpb.ResponseParameters{
Size: proto.Int32(int32(s)),
}
}
req := &testpb.StreamingOutputCallRequest{
ResponseType: testpb.PayloadType_COMPRESSABLE.Enum(),
ResponseParameters: respParam,
}
stream, err := tc.StreamingOutputCall(context.Background(), req)
if err != nil {
grpclog.Fatalf("%v.StreamingOutputCall(_) = _, %v", tc, err)
}
var rpcStatus error
var respCnt int
var index int
for {
reply, err := stream.Recv()
if err != nil {
rpcStatus = err
break
}
t := reply.GetPayload().GetType()
if t != testpb.PayloadType_COMPRESSABLE {
grpclog.Fatalf("Got the reply of type %d, want %d", t, testpb.PayloadType_COMPRESSABLE)
}
size := len(reply.GetPayload().GetBody())
if size != int(respSizes[index]) {
grpclog.Fatalf("Got reply body of length %d, want %d", size, respSizes[index])
}
index++
respCnt++
}
if rpcStatus != io.EOF {
grpclog.Fatalf("Failed to finish the server streaming rpc: %v", err)
}
if respCnt != len(respSizes) {
grpclog.Fatalf("Got %d reply, want %d", len(respSizes), respCnt)
}
grpclog.Println("ServerStreaming done")
}
// DoPingPong performs ping-pong style bi-directional streaming RPC.
func DoPingPong(tc testpb.TestServiceClient) {
stream, err := tc.FullDuplexCall(context.Background())
if err != nil {
grpclog.Fatalf("%v.FullDuplexCall(_) = _, %v", tc, err)
}
var index int
for index < len(reqSizes) {
respParam := []*testpb.ResponseParameters{
{
Size: proto.Int32(int32(respSizes[index])),
},
}
pl := clientNewPayload(testpb.PayloadType_COMPRESSABLE, reqSizes[index])
req := &testpb.StreamingOutputCallRequest{
ResponseType: testpb.PayloadType_COMPRESSABLE.Enum(),
ResponseParameters: respParam,
Payload: pl,
}
if err := stream.Send(req); err != nil {
grpclog.Fatalf("%v.Send(%v) = %v", stream, req, err)
}
reply, err := stream.Recv()
if err != nil {
grpclog.Fatalf("%v.Recv() = %v", stream, err)
}
t := reply.GetPayload().GetType()
if t != testpb.PayloadType_COMPRESSABLE {
grpclog.Fatalf("Got the reply of type %d, want %d", t, testpb.PayloadType_COMPRESSABLE)
}
size := len(reply.GetPayload().GetBody())
if size != int(respSizes[index]) {
grpclog.Fatalf("Got reply body of length %d, want %d", size, respSizes[index])
}
index++
}
if err := stream.CloseSend(); err != nil {
grpclog.Fatalf("%v.CloseSend() got %v, want %v", stream, err, nil)
}
if _, err := stream.Recv(); err != io.EOF {
grpclog.Fatalf("%v failed to complele the ping pong test: %v", stream, err)
}
grpclog.Println("Pingpong done")
}
// DoEmptyStream sets up a bi-directional streaming with zero message.
func DoEmptyStream(tc testpb.TestServiceClient) {
stream, err := tc.FullDuplexCall(context.Background())
if err != nil {
grpclog.Fatalf("%v.FullDuplexCall(_) = _, %v", tc, err)
}
if err := stream.CloseSend(); err != nil {
grpclog.Fatalf("%v.CloseSend() got %v, want %v", stream, err, nil)
}
if _, err := stream.Recv(); err != io.EOF {
grpclog.Fatalf("%v failed to complete the empty stream test: %v", stream, err)
}
grpclog.Println("Emptystream done")
}
// DoTimeoutOnSleepingServer performs an RPC on a sleep server which causes RPC timeout.
func DoTimeoutOnSleepingServer(tc testpb.TestServiceClient) {
ctx, _ := context.WithTimeout(context.Background(), 1*time.Millisecond)
stream, err := tc.FullDuplexCall(ctx)
if err != nil {
if grpc.Code(err) == codes.DeadlineExceeded {
grpclog.Println("TimeoutOnSleepingServer done")
return
}
grpclog.Fatalf("%v.FullDuplexCall(_) = _, %v", tc, err)
}
pl := clientNewPayload(testpb.PayloadType_COMPRESSABLE, 27182)
req := &testpb.StreamingOutputCallRequest{
ResponseType: testpb.PayloadType_COMPRESSABLE.Enum(),
Payload: pl,
}
if err := stream.Send(req); err != nil {
grpclog.Fatalf("%v.Send(%v) = %v", stream, req, err)
}
if _, err := stream.Recv(); grpc.Code(err) != codes.DeadlineExceeded {
grpclog.Fatalf("%v.Recv() = _, %v, want error code %d", stream, err, codes.DeadlineExceeded)
}
grpclog.Println("TimeoutOnSleepingServer done")
}
// DoComputeEngineCreds performs a unary RPC with compute engine auth.
func DoComputeEngineCreds(tc testpb.TestServiceClient, serviceAccount, oauthScope string) {
pl := clientNewPayload(testpb.PayloadType_COMPRESSABLE, largeReqSize)
req := &testpb.SimpleRequest{
ResponseType: testpb.PayloadType_COMPRESSABLE.Enum(),
ResponseSize: proto.Int32(int32(largeRespSize)),
Payload: pl,
FillUsername: proto.Bool(true),
FillOauthScope: proto.Bool(true),
}
reply, err := tc.UnaryCall(context.Background(), req)
if err != nil {
grpclog.Fatal("/TestService/UnaryCall RPC failed: ", err)
}
user := reply.GetUsername()
scope := reply.GetOauthScope()
if user != serviceAccount {
grpclog.Fatalf("Got user name %q, want %q.", user, serviceAccount)
}
if !strings.Contains(oauthScope, scope) {
grpclog.Fatalf("Got OAuth scope %q which is NOT a substring of %q.", scope, oauthScope)
}
grpclog.Println("ComputeEngineCreds done")
}
func getServiceAccountJSONKey(keyFile string) []byte {
jsonKey, err := ioutil.ReadFile(keyFile)
if err != nil {
grpclog.Fatalf("Failed to read the service account key file: %v", err)
}
return jsonKey
}
// DoServiceAccountCreds performs a unary RPC with service account auth.
func DoServiceAccountCreds(tc testpb.TestServiceClient, serviceAccountKeyFile, oauthScope string) {
pl := clientNewPayload(testpb.PayloadType_COMPRESSABLE, largeReqSize)
req := &testpb.SimpleRequest{
ResponseType: testpb.PayloadType_COMPRESSABLE.Enum(),
ResponseSize: proto.Int32(int32(largeRespSize)),
Payload: pl,
FillUsername: proto.Bool(true),
FillOauthScope: proto.Bool(true),
}
reply, err := tc.UnaryCall(context.Background(), req)
if err != nil {
grpclog.Fatal("/TestService/UnaryCall RPC failed: ", err)
}
jsonKey := getServiceAccountJSONKey(serviceAccountKeyFile)
user := reply.GetUsername()
scope := reply.GetOauthScope()
if !strings.Contains(string(jsonKey), user) {
grpclog.Fatalf("Got user name %q which is NOT a substring of %q.", user, jsonKey)
}
if !strings.Contains(oauthScope, scope) {
grpclog.Fatalf("Got OAuth scope %q which is NOT a substring of %q.", scope, oauthScope)
}
grpclog.Println("ServiceAccountCreds done")
}
// DoJWTTokenCreds performs a unary RPC with JWT token auth.
func DoJWTTokenCreds(tc testpb.TestServiceClient, serviceAccountKeyFile string) {
pl := clientNewPayload(testpb.PayloadType_COMPRESSABLE, largeReqSize)
req := &testpb.SimpleRequest{
ResponseType: testpb.PayloadType_COMPRESSABLE.Enum(),
ResponseSize: proto.Int32(int32(largeRespSize)),
Payload: pl,
FillUsername: proto.Bool(true),
}
reply, err := tc.UnaryCall(context.Background(), req)
if err != nil {
grpclog.Fatal("/TestService/UnaryCall RPC failed: ", err)
}
jsonKey := getServiceAccountJSONKey(serviceAccountKeyFile)
user := reply.GetUsername()
if !strings.Contains(string(jsonKey), user) {
grpclog.Fatalf("Got user name %q which is NOT a substring of %q.", user, jsonKey)
}
grpclog.Println("JWTtokenCreds done")
}
// GetToken obtains an OAUTH token from the input.
func GetToken(serviceAccountKeyFile string, oauthScope string) *oauth2.Token {
jsonKey := getServiceAccountJSONKey(serviceAccountKeyFile)
config, err := google.JWTConfigFromJSON(jsonKey, oauthScope)
if err != nil {
grpclog.Fatalf("Failed to get the config: %v", err)
}
token, err := config.TokenSource(context.Background()).Token()
if err != nil {
grpclog.Fatalf("Failed to get the token: %v", err)
}
return token
}
// DoOauth2TokenCreds performs a unary RPC with OAUTH2 token auth.
func DoOauth2TokenCreds(tc testpb.TestServiceClient, serviceAccountKeyFile, oauthScope string) {
pl := clientNewPayload(testpb.PayloadType_COMPRESSABLE, largeReqSize)
req := &testpb.SimpleRequest{
ResponseType: testpb.PayloadType_COMPRESSABLE.Enum(),
ResponseSize: proto.Int32(int32(largeRespSize)),
Payload: pl,
FillUsername: proto.Bool(true),
FillOauthScope: proto.Bool(true),
}
reply, err := tc.UnaryCall(context.Background(), req)
if err != nil {
grpclog.Fatal("/TestService/UnaryCall RPC failed: ", err)
}
jsonKey := getServiceAccountJSONKey(serviceAccountKeyFile)
user := reply.GetUsername()
scope := reply.GetOauthScope()
if !strings.Contains(string(jsonKey), user) {
grpclog.Fatalf("Got user name %q which is NOT a substring of %q.", user, jsonKey)
}
if !strings.Contains(oauthScope, scope) {
grpclog.Fatalf("Got OAuth scope %q which is NOT a substring of %q.", scope, oauthScope)
}
grpclog.Println("Oauth2TokenCreds done")
}
// DoPerRPCCreds performs a unary RPC with per RPC OAUTH2 token.
func DoPerRPCCreds(tc testpb.TestServiceClient, serviceAccountKeyFile, oauthScope string) {
jsonKey := getServiceAccountJSONKey(serviceAccountKeyFile)
pl := clientNewPayload(testpb.PayloadType_COMPRESSABLE, largeReqSize)
req := &testpb.SimpleRequest{
ResponseType: testpb.PayloadType_COMPRESSABLE.Enum(),
ResponseSize: proto.Int32(int32(largeRespSize)),
Payload: pl,
FillUsername: proto.Bool(true),
FillOauthScope: proto.Bool(true),
}
token := GetToken(serviceAccountKeyFile, oauthScope)
kv := map[string]string{"authorization": token.TokenType + " " + token.AccessToken}
ctx := metadata.NewContext(context.Background(), metadata.MD{"authorization": []string{kv["authorization"]}})
reply, err := tc.UnaryCall(ctx, req)
if err != nil {
grpclog.Fatal("/TestService/UnaryCall RPC failed: ", err)
}
user := reply.GetUsername()
scope := reply.GetOauthScope()
if !strings.Contains(string(jsonKey), user) {
grpclog.Fatalf("Got user name %q which is NOT a substring of %q.", user, jsonKey)
}
if !strings.Contains(oauthScope, scope) {
grpclog.Fatalf("Got OAuth scope %q which is NOT a substring of %q.", scope, oauthScope)
}
grpclog.Println("PerRPCCreds done")
}
var (
testMetadata = metadata.MD{
"key1": []string{"value1"},
"key2": []string{"value2"},
}
)
// DoCancelAfterBegin cancels the RPC after metadata has been sent but before payloads are sent.
func DoCancelAfterBegin(tc testpb.TestServiceClient) {
ctx, cancel := context.WithCancel(metadata.NewContext(context.Background(), testMetadata))
stream, err := tc.StreamingInputCall(ctx)
if err != nil {
grpclog.Fatalf("%v.StreamingInputCall(_) = _, %v", tc, err)
}
cancel()
_, err = stream.CloseAndRecv()
if grpc.Code(err) != codes.Canceled {
grpclog.Fatalf("%v.CloseAndRecv() got error code %d, want %d", stream, grpc.Code(err), codes.Canceled)
}
grpclog.Println("CancelAfterBegin done")
}
// DoCancelAfterFirstResponse cancels the RPC after receiving the first message from the server.
func DoCancelAfterFirstResponse(tc testpb.TestServiceClient) {
ctx, cancel := context.WithCancel(context.Background())
stream, err := tc.FullDuplexCall(ctx)
if err != nil {
grpclog.Fatalf("%v.FullDuplexCall(_) = _, %v", tc, err)
}
respParam := []*testpb.ResponseParameters{
{
Size: proto.Int32(31415),
},
}
pl := clientNewPayload(testpb.PayloadType_COMPRESSABLE, 27182)
req := &testpb.StreamingOutputCallRequest{
ResponseType: testpb.PayloadType_COMPRESSABLE.Enum(),
ResponseParameters: respParam,
Payload: pl,
}
if err := stream.Send(req); err != nil {
grpclog.Fatalf("%v.Send(%v) = %v", stream, req, err)
}
if _, err := stream.Recv(); err != nil {
grpclog.Fatalf("%v.Recv() = %v", stream, err)
}
cancel()
if _, err := stream.Recv(); grpc.Code(err) != codes.Canceled {
grpclog.Fatalf("%v compleled with error code %d, want %d", stream, grpc.Code(err), codes.Canceled)
}
grpclog.Println("CancelAfterFirstResponse done")
}
type testServer struct {
}
// NewTestServer creates a test server for test service.
func NewTestServer() testpb.TestServiceServer {
return &testServer{}
}
func (s *testServer) EmptyCall(ctx context.Context, in *testpb.Empty) (*testpb.Empty, error) {
return new(testpb.Empty), nil
}
func serverNewPayload(t testpb.PayloadType, size int32) (*testpb.Payload, error) {
if size < 0 {
return nil, fmt.Errorf("requested a response with invalid length %d", size)
}
body := make([]byte, size)
switch t {
case testpb.PayloadType_COMPRESSABLE:
case testpb.PayloadType_UNCOMPRESSABLE:
return nil, fmt.Errorf("payloadType UNCOMPRESSABLE is not supported")
default:
return nil, fmt.Errorf("unsupported payload type: %d", t)
}
return &testpb.Payload{
Type: t.Enum(),
Body: body,
}, nil
}
func (s *testServer) UnaryCall(ctx context.Context, in *testpb.SimpleRequest) (*testpb.SimpleResponse, error) {
pl, err := serverNewPayload(in.GetResponseType(), in.GetResponseSize())
if err != nil {
return nil, err
}
return &testpb.SimpleResponse{
Payload: pl,
}, nil
}
func (s *testServer) StreamingOutputCall(args *testpb.StreamingOutputCallRequest, stream testpb.TestService_StreamingOutputCallServer) error {
cs := args.GetResponseParameters()
for _, c := range cs {
if us := c.GetIntervalUs(); us > 0 {
time.Sleep(time.Duration(us) * time.Microsecond)
}
pl, err := serverNewPayload(args.GetResponseType(), c.GetSize())
if err != nil {
return err
}
if err := stream.Send(&testpb.StreamingOutputCallResponse{
Payload: pl,
}); err != nil {
return err
}
}
return nil
}
func (s *testServer) StreamingInputCall(stream testpb.TestService_StreamingInputCallServer) error {
var sum int
for {
in, err := stream.Recv()
if err == io.EOF {
return stream.SendAndClose(&testpb.StreamingInputCallResponse{
AggregatedPayloadSize: proto.Int32(int32(sum)),
})
}
if err != nil {
return err
}
p := in.GetPayload().GetBody()
sum += len(p)
}
}
func (s *testServer) FullDuplexCall(stream testpb.TestService_FullDuplexCallServer) error {
for {
in, err := stream.Recv()
if err == io.EOF {
// read done.
return nil
}
if err != nil {
return err
}
cs := in.GetResponseParameters()
for _, c := range cs {
if us := c.GetIntervalUs(); us > 0 {
time.Sleep(time.Duration(us) * time.Microsecond)
}
pl, err := serverNewPayload(in.GetResponseType(), c.GetSize())
if err != nil {
return err
}
if err := stream.Send(&testpb.StreamingOutputCallResponse{
Payload: pl,
}); err != nil {
return err
}
}
}
}
func (s *testServer) HalfDuplexCall(stream testpb.TestService_HalfDuplexCallServer) error {
var msgBuf []*testpb.StreamingOutputCallRequest
for {
in, err := stream.Recv()
if err == io.EOF {
// read done.
break
}
if err != nil {
return err
}
msgBuf = append(msgBuf, in)
}
for _, m := range msgBuf {
cs := m.GetResponseParameters()
for _, c := range cs {
if us := c.GetIntervalUs(); us > 0 {
time.Sleep(time.Duration(us) * time.Microsecond)
}
pl, err := serverNewPayload(m.GetResponseType(), c.GetSize())
if err != nil {
return err
}
if err := stream.Send(&testpb.StreamingOutputCallResponse{
Payload: pl,
}); err != nil {
return err
}
}
}
return nil
}