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package main

import (
	"bytes"
	"testing"

	"mm/internal/config"
	"mm/internal/ui"
)

// The banner says which way yolo is set, both ways.
func TestYoloColumn(t *testing.T) {
	old := config.Cfg.Yolo
	t.Cleanup(func() { config.Cfg.Yolo = old })

	config.Cfg.Yolo = true
	if got := yoloColumn(); got != "yolo: on" {
		t.Errorf("yolo on: %q", got)
	}
	config.Cfg.Yolo = false
	if got := yoloColumn(); got != "yolo: off (tools ask)" {
		t.Errorf("yolo off: %q", got)
	}
}

// A start-up error goes to stderr, never to ui.Out: in `-p` mode stdout is
// the answer, and a script would read "[config error: …]" as one.
func TestStartupErrorsGoToStderr(t *testing.T) {
	var stderr, out bytes.Buffer
	oldErr, oldOut := errOut, ui.Out
	errOut, ui.Out = &stderr, &out
	t.Cleanup(func() { errOut, ui.Out = oldErr, oldOut })

	fail("[config error: %v ]", "open agent.countries.yaml: no such file or directory")

	if out.Len() != 0 {
		t.Errorf("ui.Out got %q, want nothing", out.String())
	}
	if stderr.String() != "[config error: open agent.countries.yaml: no such file or directory ]\n" {
		t.Errorf("stderr got %q", stderr.String())
	}
}