package tests import ( "testing" "gotest.tools/v3/icmd" ) func TestExitErrorCode(t *testing.T) { cmd, cleanup, _ := dockerCli.createTestCmd() defer cleanup() cmd.Command = dockerCli.Command("ecs", "unknown_command") icmd.RunCmd(cmd).Assert(t, icmd.Expected{ ExitCode: 1, Err: "\"unknown_command\" is not a docker ecs command\nSee 'docker ecs --help'", }) }