package main

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

func TestExamples(t *testing.T) {
	var previous Config
	for i, ext := range []string{"json", "yaml", "xml", "custom"} {
		source := ext
		if source == "custom" {
			source = "json"
		}
		data, err := examples.ReadFile("config." + source)
		if err != nil {
			t.Fatal(err)
		}
		path := filepath.Join(t.TempDir(), "app."+ext)
		if err = os.WriteFile(path, data, 0600); err != nil {
			t.Fatal(err)
		}
		got, err := load(path)
		if err != nil {
			t.Fatal(err)
		}
		if i > 0 && !reflect.DeepEqual(previous, got) {
			t.Fatal("format difference")
		}
		previous = got
	}
}