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/*
*
* Copyright 2021 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 lz4
import (
"bytes"
"context"
"io/ioutil"
"net"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials/insecure"
"google.golang.org/grpc/encoding"
"google.golang.org/grpc/test/bufconn"
"github.com/mostynb/go-grpc-compression/internal/testserver"
)
const (
bufSize = 1024
message = "Message Request LZ4"
)
func TestRegisteredCompression(t *testing.T) {
clobbering := true
PretendInit(clobbering)
comp := encoding.GetCompressor(Name)
require.NotNil(t, comp)
assert.Equal(t, Name, comp.Name())
buf := bytes.NewBuffer(make([]byte, 0, bufSize))
wc, err := comp.Compress(buf)
require.NoError(t, err)
_, err = wc.Write([]byte(message))
require.NoError(t, err)
assert.NoError(t, wc.Close())
r, err := comp.Decompress(buf)
require.NoError(t, err)
expected, err := ioutil.ReadAll(r)
require.NoError(t, err)
assert.Equal(t, message, string(expected))
}
func TestRoundTrip(t *testing.T) {
clobbering := true
PretendInit(clobbering)
lis := bufconn.Listen(bufSize)
t.Cleanup(func() {
assert.NoError(t, lis.Close())
})
done := make(chan struct{}, 1)
s := grpc.NewServer()
defer func() {
s.GracefulStop()
<-done
}()
testserver.RegisterTestServerServer(s, &testserver.EchoTestServer{})
go func() {
if err := s.Serve(lis); err != nil && err != grpc.ErrServerStopped {
t.Errorf("Server exited with error: %v", err)
}
done <- struct{}{}
}()
conn, err := grpc.NewClient("passthrough://bufnet",
grpc.WithContextDialer(func(context.Context, string) (net.Conn, error) {
return lis.Dial()
}),
grpc.WithDefaultCallOptions(grpc.UseCompressor(Name)),
grpc.WithTransportCredentials(insecure.NewCredentials()))
require.NoError(t, err)
t.Cleanup(func() {
assert.NoError(t, conn.Close())
})
client := testserver.NewTestServerClient(conn)
resp, err := client.SendMessage(context.Background(), &testserver.MessageRequest{Request: message})
require.NoError(t, err)
assert.Equal(t, message, resp.Response)
}
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