grafana/pkg/tsdb/mssql/proxy_test.go
2024-02-15 12:01:18 +01:00

73 lines
2.3 KiB
Go

package mssql
import (
"context"
"fmt"
"net"
"testing"
mssql "github.com/microsoft/go-mssqldb"
"github.com/stretchr/testify/require"
"golang.org/x/net/proxy"
)
type testDialer struct {
}
func (d *testDialer) Dial(network, addr string) (c net.Conn, err error) {
return nil, fmt.Errorf("test-dialer: Dial is not functional")
}
func (d *testDialer) DialContext(ctx context.Context, network, address string) (net.Conn, error) {
return nil, fmt.Errorf("test-dialer: DialContext is not functional")
}
var _ proxy.Dialer = (&testDialer{})
var _ proxy.ContextDialer = (&testDialer{})
func newTestDialer() proxy.Dialer {
d := testDialer{}
return &d
}
func TestMSSQLProxyDriver(t *testing.T) {
cnnstr := "server=127.0.0.1;port=1433;user id=sa;password=yourStrong(!)Password;database=db"
driverName, err := createMSSQLProxyDriver(cnnstr, "127.0.0.1", newTestDialer())
require.NoError(t, err)
t.Run("Driver should not be registered more than once", func(t *testing.T) {
testDriver, err := createMSSQLProxyDriver(cnnstr, "127.0.0.1", newTestDialer())
require.NoError(t, err)
require.Equal(t, driverName, testDriver)
})
t.Run("A new driver should be created for a new connection string", func(t *testing.T) {
testDriver, err := createMSSQLProxyDriver("server=localhost;user id=sa;password=yourStrong(!)Password;database=db2", "localhost", newTestDialer())
require.NoError(t, err)
require.NotEqual(t, driverName, testDriver)
})
t.Run("Connector should use dialer context that routes through the socks proxy to db", func(t *testing.T) {
connector, err := mssql.NewConnector(cnnstr)
require.NoError(t, err)
driver, err := newMSSQLProxyDriver(connector, "127.0.0.1", newTestDialer())
require.NoError(t, err)
conn, err := driver.OpenConnector(cnnstr)
require.NoError(t, err)
_, err = conn.Connect(context.Background())
require.Contains(t, err.Error(), "test-dialer: DialContext is not functional")
})
t.Run("Open should use the connector that routes through the socks proxy to db", func(t *testing.T) {
connector, err := mssql.NewConnector(cnnstr)
require.NoError(t, err)
driver, err := newMSSQLProxyDriver(connector, "127.0.0.1", newTestDialer())
require.NoError(t, err)
_, err = driver.Open(cnnstr)
require.Contains(t, err.Error(), "test-dialer: DialContext is not functional")
})
}