You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: migrate_test.go
    path of file: ./repos/cosmos-sdk/tools/confix/cmd
    
    the code of the file until where you have to start completion: package cmd_test

import (
	"path/filepath"
	"strings"
	"testing"

	"gotest.tools/v3/assert"

	"co
    
func TestMigrateCmd(t *testing.T) {
	clientCtx, cleanup := initClientContext(t)
	defer cleanup()

	_, err := clitestutil.ExecTestCLICmd(clientCtx, cmd.MigrateCommand(), []string{"v0.0"})
	assert.ErrorContains(t, err, "unknown version")

	// clientCtx does not create app.toml, so this should fail
	_, err = clitestutil.ExecTestCLICmd(clientCtx, cmd.MigrateCommand(), []string{"v0.45"})
	assert.ErrorContains(t, err, "no such file or directory")

	// try to migrate from unsupported.toml it should fail without --skip-validate
	_, err = clitestutil.ExecTestCLICmd(clientCtx, cmd.MigrateCommand(), []string{"v0.46", filepath.Join(clientCtx.HomeDir, "config", "unsupported.toml")})
	assert.ErrorContains(t, err, "failed to migrate config")

	// try to migrate from unsupported.toml - it should work and give us a big diff
	out, err := clitestutil.ExecTestCLICmd(clientCtx, cmd.MigrateCommand(), []string{"v0.46", filepath.Join(clientCtx.HomeDir, "config", "unsupported.toml"), "--skip-validate", "--verbose"})
	assert.NilError(t, err)
	assert.Assert(t, strings.Contains(out.String(), "add app-db-backend key"))

	// this should work
	out, err = clitestutil.ExecTestCLICmd(clientCtx, cmd.MigrateCommand(), []string{"v0.51", filepath.Join(clientCtx.HomeDir, "config", "client.toml"), "--client", "--verbose"})
	assert.NilError(t, err)
	assert.Assert(t, strings.Contains(out.String(), "add keyring-default-keyname key"))
}