package app

import (
	"os"
	"path/filepath"
	"testing"
)

func TestDefaultConfigUsesCODEXHomeOverride(t *testing.T) {
	override := filepath.Join(t.TempDir(), "custom-codex")
	t.Setenv("CODEX_HOME", override)

	cfg := DefaultConfig()

	if cfg.CodexHome != override {
		t.Fatalf("CodexHome = %q, want %q", cfg.CodexHome, override)
	}
}

func TestDefaultConfigFallsBackToUserCodexHome(t *testing.T) {
	t.Setenv("CODEX_HOME", "")
	home, err := os.UserHomeDir()
	if err != nil {
		t.Fatal(err)
	}

	cfg := DefaultConfig()

	want := filepath.Join(home, ".codex")
	if cfg.CodexHome != want {
		t.Fatalf("CodexHome = %q, want %q", cfg.CodexHome, want)
	}
}