package config

import (
	"testing"
)

func TestDefault_EmptyHome_ReturnsError(t *testing.T) {
	t.Setenv("HOME", "")
	_, err := Default()
	if err == nil {
		t.Fatal("expected error when HOME is empty, got nil")
	}
}

func TestDefault_ValidHome_ReturnsConfig(t *testing.T) {
	t.Setenv("HOME", "/tmp/testhome")
	cfg, err := Default()
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if cfg.DataDir != "/tmp/testhome/.claudomator" {
		t.Errorf("DataDir = %q, want /tmp/testhome/.claudomator", cfg.DataDir)
	}
}