AlinsRan commented on code in PR #2570: URL: https://github.com/apache/apisix-ingress-controller/pull/2570#discussion_r2366853728
########## test/e2e/scaffold/grpc.go: ########## @@ -0,0 +1,154 @@ +// Licensed to the Apache Software Foundation (ASF) under one or more +// contributor license agreements. See the NOTICE file distributed with +// this work for additional information regarding copyright ownership. +// The ASF licenses this file to You 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 scaffold + +import ( + "context" + _ "embed" + "fmt" + "strings" + "time" + + "github.com/apache/apisix-ingress-controller/test/e2e/framework" + "google.golang.org/grpc" + "google.golang.org/grpc/codes" + "google.golang.org/grpc/credentials/insecure" + "google.golang.org/grpc/metadata" + "google.golang.org/grpc/status" + pb "sigs.k8s.io/gateway-api/conformance/echo-basic/grpcechoserver" +) + +type RequestMetadata struct { + // The :authority pseudoheader to set on the outgoing request. + Authority string + + // Outgoing metadata pairs to add to the request. + Metadata map[string]string +} + +type ExpectedResponse struct { + EchoRequest *pb.EchoRequest + EchoTwoRequest *pb.EchoRequest + EchoThreeRequest *pb.EchoRequest + + RequestMetadata *RequestMetadata + + Headers map[string]string + + EchoResponse EchoResponse +} + +type EchoResponse struct { + Code codes.Code + Headers *metadata.MD + Trailers *metadata.MD + Response *pb.EchoResponse +} + +func (s *Scaffold) DeployGRPCBackend() { + s.Framework.DeployGRPCBackend(framework.GRPCBackendOpts{ + KubectlOptions: s.kubectlOptions, + }) +} + +func (s *Scaffold) RequestEchoBackend(exp ExpectedResponse) error { + endpoint := s.apisixTunnels.HTTP.Endpoint() + + endpoint = strings.Replace(endpoint, "localhost", "127.0.0.1", 1) + + dialOpts := []grpc.DialOption{grpc.WithTransportCredentials(insecure.NewCredentials())} + if exp.RequestMetadata != nil && exp.RequestMetadata.Authority != "" { + dialOpts = append(dialOpts, grpc.WithAuthority(exp.RequestMetadata.Authority)) + } + conn, err := grpc.NewClient(endpoint, dialOpts...) + if err != nil { + return err + } + defer func() { _ = conn.Close() }() + + ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second) + defer cancel() + + if exp.RequestMetadata != nil && len(exp.RequestMetadata.Metadata) > 0 { + ctx = metadata.NewOutgoingContext(ctx, metadata.New(exp.RequestMetadata.Metadata)) + } + + var ( + resp = &EchoResponse{ + Headers: &metadata.MD{}, + Trailers: &metadata.MD{}, + } + ) + + client := pb.NewGrpcEchoClient(conn) + switch { + case exp.EchoRequest != nil: + resp.Response, err = client.Echo(ctx, exp.EchoRequest, grpc.Header(resp.Headers), grpc.Trailer(resp.Trailers)) + case exp.EchoTwoRequest != nil: + resp.Response, err = client.EchoTwo(ctx, exp.EchoTwoRequest, grpc.Header(resp.Headers), grpc.Trailer(resp.Trailers)) + case exp.EchoThreeRequest != nil: + resp.Response, err = client.EchoThree(ctx, exp.EchoThreeRequest, grpc.Header(resp.Headers), grpc.Trailer(resp.Trailers)) + } + if err != nil { + resp.Code = status.Code(err) + fmt.Printf("RPC finished with error: %v\n", err) + } else { + resp.Code = codes.OK + } + if err := expectEchoResponses(&exp, resp); err != nil { + return err + } + return nil +} + +func expectEchoResponses(expected *ExpectedResponse, actual *EchoResponse) error { + if expected.EchoResponse.Code != actual.Code { + return fmt.Errorf("expected status code to be %s (%d), but got %s (%d)", + expected.EchoResponse.Code.String(), + expected.EchoResponse.Code, + actual.Code.String(), + actual.Code, + ) + } + if expected.EchoResponse.Headers != nil { + for key, values := range *expected.EchoResponse.Headers { + actualValues := actual.Headers.Get(key) + if len(values) != len(actualValues) { + return fmt.Errorf("expected header %q to have %d values, but got %d", key, len(values), len(actualValues)) + } + for i, v := range values { + if actualValues[i] != v { + return fmt.Errorf("expected header %q to have value %q, but got %q", key, v, actualValues[i]) + } + } + } + } + if len(expected.Headers) > 0 { + msgHeaders := actual.Response.GetAssertions().GetHeaders() + + kv := make(map[string]string) + for _, header := range msgHeaders { + kv[header.GetKey()] = header.GetValue() + } + for key, value := range expected.Headers { + if actualValue, ok := kv[strings.ToLower(key)]; !ok && value != "" { + return fmt.Errorf("expected header %q to be present, but not found", key) + } else if actualValue != value { Review Comment: When empty, it means confirming whether the header has been removed. -- This is an automated message from the Apache Git Service. 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