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go/internal/jsonrpc2/servertest/servertest_test.go
Rob Findley b320d3a0f5 internal/jsonrpc2/servertest: support both TCP and pipe connection
Update the servertest package to support connecting to a jsonrpc2 server
using either TCP or io.Pipes. The latter is provided so that regtests
can more accurately mimic the current gopls execution mode, where gopls
is run as a sidecar and communicated with via a pipe.

Updates golang/go#36879

Change-Id: I0e14ed0e628333ba2cc7b088009f1887fcaa82a5
Reviewed-on: https://go-review.googlesource.com/c/tools/+/218777
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
2020-02-16 19:22:41 +00:00

61 lines
1.2 KiB
Go

// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package servertest
import (
"context"
"testing"
"time"
"golang.org/x/tools/internal/jsonrpc2"
)
type fakeHandler struct {
jsonrpc2.EmptyHandler
}
type msg struct {
Msg string
}
func (fakeHandler) Deliver(ctx context.Context, r *jsonrpc2.Request, delivered bool) bool {
if err := r.Reply(ctx, &msg{"pong"}, nil); err != nil {
panic(err)
}
return true
}
func TestTestServer(t *testing.T) {
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
server := jsonrpc2.HandlerServer(fakeHandler{})
tcpTS := NewTCPServer(ctx, server)
defer tcpTS.Close()
pipeTS := NewPipeServer(ctx, server)
defer pipeTS.Close()
tests := []struct {
name string
connector Connector
} {
{"tcp", tcpTS},
{"pipe", pipeTS},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
conn := test.connector.Connect(ctx)
var got msg
if err := conn.Call(ctx, "ping", &msg{"ping"}, &got); err != nil {
t.Fatal(err)
}
if want := "pong"; got.Msg != want {
t.Errorf("conn.Call(...): returned %q, want %q", got, want)
}
})
}
}