Short:  fmt.Sprintf("long description for %s ...", name),
		Phases: phases,
		Run:    run,
		RunIf:  runIf,
	}
}

func runPass(data RunData) error {
	return nil
}

func runFails(data RunData) error {
	return errors.New("run fails")
}

func runConditionPass(data RunData) (bool, error) {
	return true, nil
}

func runConditionFails(data RunData) (bool, error) {

	run("go tool compile -importcfg", tmp("importcfg"), "-p=notmain -pack -o", tmp("linkmain1.a"), "linkmain.go")
	runFail("go tool link -importcfg", tmp("importcfg"), "-o", tmp("linkmain.exe"), tmp("linkmain1.o"))
	runFail("go tool link -importcfg", tmp("importcfg"), "-o", tmp("linkmain.exe"), tmp("linkmain1.a"))
	cleanup()

	if runtime.Compiler == "gccgo" {
		tg.runFail("build", "-gccgoflags=all=@x", "x")
	} else {
		tg.runFail("build", "-gcflags=all=@x", "x")
	}
	tg.grepStderr("invalid command-line argument @x in command", "did not reject @x during exec")

	tg.tempFile("src/@x/x.go", "package x\n")
	tg.setenv("GOPATH", tg.path("."))
	tg.runFail("build", "@x")

	if err != nil {
		fatalf("run %v: %s\n%s", args, err, out)
	}
	return string(out)
}

func runFail(args ...string) string {
	out, err := exec.Command(args[0], args[1:]...).CombinedOutput()
	if err == nil {
		fatalf("runFail %v: unexpected success!\n%s", args, err, out)
	}
	return string(out)
}

func cp(src, dst string) {
	data, err := ioutil.ReadFile(src)

	}

	if fcmd.CombinedOutputCalls != 1 {
		t.Errorf("%s: Expected 1 CombinedOutput() calls, got %d", protocol, fcmd.CombinedOutputCalls)
	}
	if fcmd.RunCalls != 1 {
		t.Errorf("%s: Expected 1 Run() call, got %d", protocol, fcmd.RunCalls)
	}
	if !sets.New(fcmd.RunLog[0]...).HasAll(iptablesSaveCmd, "-t", "nat") {
		t.Errorf("%s: Expected cmd containing '%s -t nat', got '%s'", protocol, iptablesSaveCmd, fcmd.RunLog[0])