mirror of
https://github.com/zrepl/zrepl.git
synced 2024-11-22 08:23:50 +01:00
120 lines
2.6 KiB
Go
120 lines
2.6 KiB
Go
package versionhandshake
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import (
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"bytes"
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"fmt"
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"io"
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"strings"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/zrepl/zrepl/internal/util/socketpair"
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)
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func TestHandshakeMessage_Encode(t *testing.T) {
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msg := HandshakeMessage{
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ProtocolVersion: 2342,
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}
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encB, err := msg.Encode()
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require.NoError(t, err)
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enc := string(encB)
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t.Logf("enc: %s", enc)
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assert.False(t, strings.ContainsAny(enc[0:10], " "))
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assert.True(t, enc[10] == ' ')
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var (
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headerlen, protoversion, extensionCount int
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)
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n, err := fmt.Sscanf(enc, "%010d ZREPL_ZFS_REPLICATION PROTOVERSION=%04d EXTENSIONS=%04d\n",
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&headerlen, &protoversion, &extensionCount)
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if n != 3 || (err != nil && err != io.EOF) {
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t.Fatalf("%v %v", n, err)
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}
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assert.Equal(t, 2342, protoversion)
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assert.Equal(t, 0, extensionCount)
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assert.Equal(t, len(enc)-11, headerlen)
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}
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func TestHandshakeMessage_Encode_InvalidProtocolVersion(t *testing.T) {
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for _, pv := range []int{-1, 0, 10000, 10001} {
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t.Logf("testing invalid protocol version = %v", pv)
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msg := HandshakeMessage{
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ProtocolVersion: pv,
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}
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b, err := msg.Encode()
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assert.Error(t, err)
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assert.Nil(t, b)
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}
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}
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func TestHandshakeMessage_DecodeReader(t *testing.T) {
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in := HandshakeMessage{
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2342,
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[]string{"foo", "bar 2342"},
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}
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enc, err := in.Encode()
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require.NoError(t, err)
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out := HandshakeMessage{}
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err = out.DecodeReader(bytes.NewReader([]byte(enc)), 4*4096)
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assert.NoError(t, err)
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assert.Equal(t, 2342, out.ProtocolVersion)
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assert.Equal(t, 2, len(out.Extensions))
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assert.Equal(t, "foo", out.Extensions[0])
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assert.Equal(t, "bar 2342", out.Extensions[1])
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}
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func TestDoHandshakeVersion_ErrorOnDifferentVersions(t *testing.T) {
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srv, client, err := socketpair.SocketPair()
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if err != nil {
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t.Fatal(err)
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}
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defer srv.Close()
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defer client.Close()
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srvErrCh := make(chan error)
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go func() {
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srvErrCh <- DoHandshakeVersion(srv, time.Now().Add(2*time.Second), 1)
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}()
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err = DoHandshakeVersion(client, time.Now().Add(2*time.Second), 2)
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t.Log(err)
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assert.Error(t, err)
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assert.True(t, strings.Contains(err.Error(), "version"))
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srvErr := <-srvErrCh
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t.Log(srvErr)
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assert.Error(t, srvErr)
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assert.True(t, strings.Contains(srvErr.Error(), "version"))
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}
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func TestDoHandshakeCurrentVersion(t *testing.T) {
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srv, client, err := socketpair.SocketPair()
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if err != nil {
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t.Fatal(err)
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}
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defer srv.Close()
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defer client.Close()
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srvErrCh := make(chan error)
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go func() {
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srvErrCh <- DoHandshakeVersion(srv, time.Now().Add(2*time.Second), 1)
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}()
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err = DoHandshakeVersion(client, time.Now().Add(2*time.Second), 1)
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assert.Nil(t, err)
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assert.Nil(t, <-srvErrCh)
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}
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