psql-wire/command_test.go at main · stackql/psql-wire · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
package wire

import (
	"net"
	"testing"

	"github.com/stackql/psql-wire/internal/buffer"
	"github.com/stackql/psql-wire/internal/mock"
	"github.com/stackql/psql-wire/internal/types"
)

func TestMessageSizeExceeded(t *testing.T) {
	server, err := NewServer()
	if err != nil {
		t.Fatal(err)
	}

	address := TListenAndServe(t, server)
	conn, err := net.Dial("tcp", address.String())
	if err != nil {
		t.Fatal(err)
	}

	client := mock.NewClient(conn)
	client.Handshake(t)
	client.Authenticate(t)
	client.ReadyForQuery(t)

	// NOTE(Jeroen): attempt to send a message twice the max buffer size
	size := uint32(buffer.DefaultBufferSize * 2)
	t.Logf("writing message of size: %d", size)

	client.Start(types.ClientSimpleQuery)
	client.AddBytes(make([]byte, size))
	err = client.End()
	if err != nil {
		t.Fatal(err)
	}

	client.Error(t)
	client.ReadyForQuery(t)
	client.Close(t)
}