import { assertEquals } from "assert";
import { SUPPORTED_FILE_TYPES } from "../../public/index/constants.js";

Deno.test("no duplicate extensions in supported file types", () => {
  const allExtensions = SUPPORTED_FILE_TYPES.flatMap((t) => t.extensions);
  assertEquals(
    allExtensions.length,
    new Set(allExtensions).size,
    "Duplicate extensions found in SUPPORTED_FILE_TYPES",
  );
});

Deno.test("MIME sniffing patterns are the same size as their masks", () => {
  for (const fileType of SUPPORTED_FILE_TYPES) {
    const { name, mimeSniffPatterns } = fileType;
    for (const { bytes, mask } of mimeSniffPatterns) {
      assertEquals(
        bytes.length,
        mask.length,
        `Pattern and mask for ${name} are not the same size`,
      );
    }
  }
});