/* * * 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 testutils import ( "context" "google.golang.org/grpc/stats" ) // StubStatsHandler is a stats handler that is easy to customize within // individual test cases. It is a stubbable implementation of // google.golang.org/grpc/stats.Handler for testing purposes. type StubStatsHandler struct { TagRPCF func(ctx context.Context, info *stats.RPCTagInfo) context.Context HandleRPCF func(ctx context.Context, info stats.RPCStats) TagConnF func(ctx context.Context, info *stats.ConnTagInfo) context.Context HandleConnF func(ctx context.Context, info stats.ConnStats) } // TagRPC calls the StubStatsHandler's TagRPCF, if set. func (ssh *StubStatsHandler) TagRPC(ctx context.Context, info *stats.RPCTagInfo) context.Context { if ssh.TagRPCF != nil { return ssh.TagRPCF(ctx, info) } return ctx } // HandleRPC calls the StubStatsHandler's HandleRPCF, if set. func (ssh *StubStatsHandler) HandleRPC(ctx context.Context, rs stats.RPCStats) { if ssh.HandleRPCF != nil { ssh.HandleRPCF(ctx, rs) } } // TagConn calls the StubStatsHandler's TagConnF, if set. func (ssh *StubStatsHandler) TagConn(ctx context.Context, info *stats.ConnTagInfo) context.Context { if ssh.TagConnF != nil { return ssh.TagConnF(ctx, info) } return ctx } // HandleConn calls the StubStatsHandler's HandleConnF, if set. func (ssh *StubStatsHandler) HandleConn(ctx context.Context, cs stats.ConnStats) { if ssh.HandleConnF != nil { ssh.HandleConnF(ctx, cs) } }