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// 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 jsonrpc2_test
import (
"context"
"errors"
"testing"
"time"
"golang.org/x/exp/jsonrpc2"
"golang.org/x/exp/jsonrpc2/internal/stack/stacktest"
)
func TestIdleTimeout(t *testing.T) {
stacktest.NoLeak(t)
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
listener, err := jsonrpc2.NetListener(ctx, "tcp", "localhost:0", jsonrpc2.NetListenOptions{})
if err != nil {
t.Fatal(err)
}
listener = jsonrpc2.NewIdleListener(100*time.Millisecond, listener)
defer listener.Close()
server, err := jsonrpc2.Serve(ctx, listener, jsonrpc2.ConnectionOptions{})
if err != nil {
t.Fatal(err)
}
connect := func() *jsonrpc2.Connection {
client, err := jsonrpc2.Dial(ctx,
listener.Dialer(),
jsonrpc2.ConnectionOptions{})
if err != nil {
t.Fatal(err)
}
return client
}
// Exercise some connection/disconnection patterns, and then assert that when
// our timer fires, the server exits.
conn1 := connect()
conn2 := connect()
if err := conn1.Close(); err != nil {
t.Fatalf("conn1.Close failed with error: %v", err)
}
if err := conn2.Close(); err != nil {
t.Fatalf("conn2.Close failed with error: %v", err)
}
conn3 := connect()
if err := conn3.Close(); err != nil {
t.Fatalf("conn3.Close failed with error: %v", err)
}
serverError := server.Wait()
if !errors.Is(serverError, jsonrpc2.ErrIdleTimeout) {
t.Errorf("run() returned error %v, want %v", serverError, jsonrpc2.ErrIdleTimeout)
}
}
type msg struct {
Msg string
}
type fakeHandler struct{}
func (fakeHandler) Handle(ctx context.Context, req *jsonrpc2.Request) (interface{}, error) {
switch req.Method {
case "ping":
return &msg{"pong"}, nil
default:
return nil, jsonrpc2.ErrNotHandled
}
}
func TestServe(t *testing.T) {
stacktest.NoLeak(t)
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
tests := []struct {
name string
factory func(context.Context) (jsonrpc2.Listener, error)
}{
{"tcp", func(ctx context.Context) (jsonrpc2.Listener, error) {
return jsonrpc2.NetListener(ctx, "tcp", "localhost:0", jsonrpc2.NetListenOptions{})
}},
{"pipe", func(ctx context.Context) (jsonrpc2.Listener, error) {
return jsonrpc2.NetPipe(ctx)
}},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
fake, err := test.factory(ctx)
if err != nil {
t.Fatal(err)
}
conn, shutdown, err := newFake(t, ctx, fake)
if err != nil {
t.Fatal(err)
}
defer shutdown()
var got msg
if err := conn.Call(ctx, "ping", &msg{"ting"}).Await(ctx, &got); err != nil {
t.Fatal(err)
}
if want := "pong"; got.Msg != want {
t.Errorf("conn.Call(...): returned %q, want %q", got, want)
}
})
}
}
func newFake(t *testing.T, ctx context.Context, l jsonrpc2.Listener) (*jsonrpc2.Connection, func(), error) {
l = jsonrpc2.NewIdleListener(100*time.Millisecond, l)
server, err := jsonrpc2.Serve(ctx, l, jsonrpc2.ConnectionOptions{
Handler: fakeHandler{},
})
if err != nil {
return nil, nil, err
}
client, err := jsonrpc2.Dial(ctx,
l.Dialer(),
jsonrpc2.ConnectionOptions{
Handler: fakeHandler{},
})
if err != nil {
return nil, nil, err
}
return client, func() {
if err := l.Close(); err != nil {
t.Fatal(err)
}
if err := client.Close(); err != nil {
t.Fatal(err)
}
server.Wait()
}, nil
}
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