move gotd fork into repo. (#111)

- update to latest telegram layer
- remove some references to fields in tg.Entities that don't exist in
the schema
- originally added here:
https://github.com/beeper/td/commit/820929062a2ba0104397bc01235ab58a9cff780e
  - referenced here
-
https://github.com/mautrix/telegramgo/commit/124f0967ed195b5a380c9bd02e170ada9710dde3
-
https://github.com/mautrix/telegramgo/commit/4205047aab2e0639217148b5d125bfaab668bd8e

pkg/gotd/telegram/internal/e2etest/auth_test.go

@@ -0,0 +1,61 @@
+package e2etest
+
+import (
+	"context"
+	"testing"
+
+	"github.com/go-faster/errors"
+	"github.com/stretchr/testify/require"
+	"go.uber.org/zap/zaptest"
+
+	"go.mau.fi/mautrix-telegram/pkg/gotd/telegram/auth"
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tg"
+)
+
+type mockFlow struct {
+	flag bool
+}
+
+var _ auth.FlowClient = &mockFlow{}
+
+func (m *mockFlow) SignIn(context.Context, string, string, string) (*tg.AuthAuthorization, error) {
+	// Ensure retry.
+	if !m.flag {
+		m.flag = true
+		return nil, auth.ErrPasswordAuthNeeded
+	}
+
+	return m.Password(context.Background(), "")
+}
+
+func (m *mockFlow) SendCode(context.Context, string, auth.SendCodeOptions) (tg.AuthSentCodeClass, error) {
+	return &tg.AuthSentCode{
+		PhoneCodeHash: "hash",
+		Type:          &tg.AuthSentCodeTypeApp{},
+		Timeout:       10,
+	}, nil
+}
+
+func (m *mockFlow) Password(context.Context, string) (*tg.AuthAuthorization, error) {
+	return &tg.AuthAuthorization{
+		User: &tg.User{
+			ID:       10,
+			Username: "aboba",
+		},
+	}, nil
+}
+
+func (m *mockFlow) SignUp(context.Context, auth.SignUp) (*tg.AuthAuthorization, error) {
+	return nil, errors.New("must not be called")
+}
+
+func TestSuite_Authenticate(t *testing.T) {
+	ctx := context.Background()
+	logger := zaptest.NewLogger(t)
+	s := NewSuite(t, TestOptions{
+		Logger: logger,
+	})
+
+	flow := &mockFlow{}
+	require.NoError(t, s.Authenticate(ctx, flow))
+}