package classes

import (
	"strings"
	"testing"
)

// TestMediaFileName pins the D-85 slug rule shared with the editor's J4
// form (UI-SPEC J4 backstop).
func TestMediaFileName(t *testing.T) {
	for in, want := range map[string]string{
		"Lwia Grzywa – w lesie!.JPG":       "lwia-grzywa-w-lesie.jpg",
		"":                                 "image",
		".png":                             "image.png",
		"...":                              "image",
		"ŻÓŁĆ gęślą jaźń.webp":             "zolc-gesla-jazn.webp",
		`C:\\Users\\x\\My Photo.jpg`:       "my-photo.jpg",
		"../../etc/passwd.png":             "passwd.png",
		`x" onerror="alert(1).png`:         "x-onerror-alert-1.png",
		"name.with.dots.jpeg":              "name-with-dots.jpeg",
		"weird.ext$":                       "weird-ext",
		"Okładka.png":                      "okladka.png",
		strings.Repeat("a", 81) + ".gif":   strings.Repeat("a", 80) + ".gif",
		strings.Repeat("a", 79) + " b.gif": strings.Repeat("a", 79) + ".gif",
	} {
		if got := MediaFileName(in); got != want {
			t.Errorf("MediaFileName(%q) = %q, want %q", in, got, want)
		}
	}
}