import { assertEquals } from "assert";
import { routeFile } from "../../public/index/fileRouter.js";

Deno.test("routes files correctly", async () => {
  const PNG_SIGNATURE = new Uint8Array([137, 80, 78, 71, 13, 10, 26, 10]);

  const testCases = new Map<File, null | string>([
    // No matching type
    [new File([], "foo"), null],
    [new File([], "foo.txt"), null],
    [new File([], "foo.txt", { type: "text/plain" }), null],
    // PNG
    [new File([], "foo", { type: "image/png" }), "/png"],
    [new File([], "foo.png"), "/png"],
    [new File([], "foo.png", { type: "text/plain" }), "/png"],
    [new File([PNG_SIGNATURE], "foo"), "/png"],
  ]);

  for (const [file, expected] of testCases) {
    const actual = await routeFile(file);
    assertEquals(
      actual,
      expected,
      `Expected file (${JSON.stringify(file.name)}, type ${
        JSON.stringify(file.type)
      }, sized ${file.size}b) to route to ${expected} (got ${actual})`,
    );
  }
});