cosmos-sdk/server/test_helpers.go

61 lines
1.3 KiB
Go

package server
import (
"fmt"
"io/ioutil"
"net"
"os"
"testing"
"time"
"github.com/spf13/cobra"
"github.com/spf13/viper"
"github.com/stretchr/testify/require"
"github.com/tendermint/tmlibs/cli"
)
// Get a free address for a test tendermint server
// protocol is either tcp, http, etc
func FreeTCPAddr(t *testing.T) string {
l, err := net.Listen("tcp", "0.0.0.0:0")
defer l.Close()
require.Nil(t, err)
port := l.Addr().(*net.TCPAddr).Port
addr := fmt.Sprintf("tcp://0.0.0.0:%d", port)
return addr
}
// setupViper creates a homedir to run inside,
// and returns a cleanup function to defer
func setupViper(t *testing.T) func() {
rootDir, err := ioutil.TempDir("", "mock-sdk-cmd")
require.Nil(t, err)
viper.Set(cli.HomeFlag, rootDir)
return func() {
os.RemoveAll(rootDir)
}
}
// Run or Timout RunE of command passed in
func RunOrTimeout(cmd *cobra.Command, timeout time.Duration, t *testing.T) chan error {
done := make(chan error)
go func(out chan<- error) {
// this should NOT exit
err := cmd.RunE(nil, nil)
if err != nil {
out <- err
}
out <- fmt.Errorf("start died for unknown reasons")
}(done)
timer := time.NewTimer(timeout)
select {
case err := <-done:
require.NoError(t, err)
case <-timer.C:
return done
}
return done
}