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|
package ttrpc
import (
"bytes"
"context"
"io"
"net"
"reflect"
"testing"
"github.com/pkg/errors"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
func TestReadWriteMessage(t *testing.T) {
var (
ctx = context.Background()
w, r = net.Pipe()
ch = newChannel(w)
rch = newChannel(r)
messages = [][]byte{
[]byte("hello"),
[]byte("this is a test"),
[]byte("of message framing"),
}
received [][]byte
errs = make(chan error, 1)
)
go func() {
for i, msg := range messages {
if err := ch.send(ctx, uint32(i), 1, msg); err != nil {
errs <- err
return
}
}
w.Close()
}()
for {
_, p, err := rch.recv(ctx)
if err != nil {
if errors.Cause(err) != io.EOF {
t.Fatal(err)
}
break
}
received = append(received, p)
// make sure we don't have send errors
select {
case err := <-errs:
if err != nil {
t.Fatal(err)
}
default:
}
}
if !reflect.DeepEqual(received, messages) {
t.Fatalf("didn't received expected set of messages: %v != %v", received, messages)
}
select {
case err := <-errs:
if err != nil {
t.Fatal(err)
}
default:
}
}
func TestMessageOversize(t *testing.T) {
var (
ctx = context.Background()
w, r = net.Pipe()
wch, rch = newChannel(w), newChannel(r)
msg = bytes.Repeat([]byte("a message of massive length"), 512<<10)
errs = make(chan error, 1)
)
go func() {
if err := wch.send(ctx, 1, 1, msg); err != nil {
errs <- err
}
}()
_, _, err := rch.recv(ctx)
if err == nil {
t.Fatalf("error expected reading with small buffer")
}
status, ok := status.FromError(err)
if !ok {
t.Fatalf("expected grpc status error: %v", err)
}
if status.Code() != codes.ResourceExhausted {
t.Fatalf("expected grpc status code: %v != %v", status.Code(), codes.ResourceExhausted)
}
select {
case err := <-errs:
if err != nil {
t.Fatal(err)
}
default:
}
}
|
