cosmos-sdk/tests/cli/executors.go

package cli

import (
	"fmt"
	"testing"

	"github.com/stretchr/testify/require"

	"github.com/cosmos/cosmos-sdk/tests"
)

func ExecuteWriteCheckErr(t *testing.T, cmdStr string, writes ...string) {
	require.True(t, ExecuteWrite(t, cmdStr, writes...))
}

func ExecuteWrite(t *testing.T, cmdStr string, writes ...string) (exitSuccess bool) {
	exitSuccess, _, _ = ExecuteWriteRetStdStreams(t, cmdStr, writes...)
	return
}

func ExecuteWriteRetStdStreams(t *testing.T, cmdStr string, writes ...string) (bool, string, string) {
	proc := tests.GoExecuteT(t, cmdStr)

	// Enables use of interactive commands
	for _, write := range writes {
		_, err := proc.StdinPipe.Write([]byte(write + "\n"))
		require.NoError(t, err)
	}

	// Read both stdout and stderr from the process
	stdout, stderr, err := proc.ReadAll()
	if err != nil {
		fmt.Println("Err on proc.ReadAll()", err, cmdStr)
	}

	// Log output.
	if len(stdout) > 0 {
		t.Log("Stdout:", string(stdout))
	}
	if len(stderr) > 0 {
		t.Log("Stderr:", string(stderr))
	}

	// Wait for process to exit
	proc.Wait()

	// Return succes, stdout, stderr
	return proc.ExitState.Success(), string(stdout), string(stderr)
}