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loopback_test.go
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75 lines (60 loc) · 2.35 KB
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// Copyright © 2019 The Things Network Foundation, The Things Industries B.V.
//
// 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 rpcserver_test
import (
"context"
"testing"
"github.com/smartystreets/assertions"
"go.thethings.network/lorawan-stack/pkg/rpcserver"
"go.thethings.network/lorawan-stack/pkg/util/rpctest"
"go.thethings.network/lorawan-stack/pkg/util/test"
"go.thethings.network/lorawan-stack/pkg/util/test/assertions/should"
"google.golang.org/grpc"
"google.golang.org/grpc/stats"
)
func TestLoopbackConn(t *testing.T) {
a := assertions.New(t)
ctx, cancel := context.WithCancel(test.Context())
defer cancel()
server := grpc.NewServer()
a.So(server, should.NotBeNil)
rpctest.RegisterFooBarServer(server, &rpctest.FooBarExampleServer{})
stats := &statsHandler{}
loopbackConn, err := rpcserver.StartLoopback(ctx, server, grpc.WithStatsHandler(stats))
a.So(loopbackConn, should.NotBeNil)
a.So(err, should.BeNil)
cli := rpctest.NewFooBarClient(loopbackConn)
bar, err := cli.Unary(ctx, &rpctest.Foo{Message: "foo"})
a.So(err, should.BeNil)
a.So(bar.Message, should.Equal, "foofoo")
a.So(stats.rpcTag, should.NotBeNil)
a.So(stats.rpcTag.FullMethodName, should.Equal, "/rpctest.FooBar/Unary")
a.So(stats.rpcTag.FailFast, should.Equal, true)
a.So(stats.connTag, should.NotBeNil)
a.So(stats.connTag.RemoteAddr, should.Resemble, stats.connTag.LocalAddr)
}
type statsHandler struct {
rpcTag *stats.RPCTagInfo
connTag *stats.ConnTagInfo
}
func (s *statsHandler) TagRPC(ctx context.Context, tag *stats.RPCTagInfo) context.Context {
s.rpcTag = tag
return ctx
}
func (s *statsHandler) HandleRPC(ctx context.Context, rpcstats stats.RPCStats) {}
func (s *statsHandler) TagConn(ctx context.Context, tag *stats.ConnTagInfo) context.Context {
s.connTag = tag
return ctx
}
func (s *statsHandler) HandleConn(ctx context.Context, stats stats.ConnStats) {}