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conn_test.go
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conn_test.go
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package grpc_net_conn
import (
"testing"
"github.com/stretchr/testify/require"
"github.com/mitchellh/go-grpc-net-conn/testproto"
)
func TestConn(t *testing.T) {
impl := &testServer{
Send: [][]byte{
[]byte("hello"),
[]byte("bye"),
},
}
t.Run("full data", func(t *testing.T) {
require := require.New(t)
conn := testStreamConn(testStreamClient(t, impl))
data := make([]byte, 1024)
n, err := conn.Read(data)
require.NoError(err)
require.Equal(len("hello"), n)
require.Equal("hello", string(data[:n]))
})
t.Run("partial read", func(t *testing.T) {
require := require.New(t)
conn := testStreamConn(testStreamClient(t, impl))
data := make([]byte, 3)
// Read first time partial
n, err := conn.Read(data)
require.NoError(err)
require.Equal(3, n)
require.Equal("hel", string(data[:n]))
// Read again full result
n, err = conn.Read(data)
require.NoError(err)
require.Equal(2, n)
require.Equal("lo", string(data[:n]))
// Read again next message
n, err = conn.Read(data)
require.NoError(err)
require.Equal(3, n)
require.Equal("bye", string(data[:n]))
})
}
func TestConn_chunkedWrites(t *testing.T) {
impl := &testServer{
Chunk: 3,
Send: [][]byte{
[]byte("hello"),
[]byte("bye"),
},
}
require := require.New(t)
conn := testStreamConn(testStreamClient(t, impl))
data := make([]byte, 1024)
// We expect two chunks
n, err := conn.Read(data)
require.NoError(err)
require.Equal(3, n)
require.Equal("hel", string(data[:n]))
n, err = conn.Read(data)
require.NoError(err)
require.Equal(2, n)
require.Equal("lo", string(data[:n]))
n, err = conn.Read(data)
require.NoError(err)
require.Equal(3, n)
require.Equal("bye", string(data[:n]))
}
type testServer struct {
Send [][]byte
Chunk int
}
func (s *testServer) Stream(stream testproto.TestService_StreamServer) error {
// Get our conn
conn := testStreamConn(stream)
if s.Chunk > 0 {
conn.Encode = ChunkedEncoder(conn.Encode, s.Chunk)
}
for _, data := range s.Send {
if _, err := conn.Write(data); err != nil {
return err
}
}
<-stream.Context().Done()
return nil
}
var _ testproto.TestServiceServer = (*testServer)(nil)