middleware_test.ts

import { HttpError } from "./middleware_deps.ts";
import { serveOgImage } from "./middleware.ts";
import { assertEquals, assertRejects, connInfo } from "./test_deps.ts";
import { Context, createRoute } from "./server_deps.ts";

const url =
  "https://example.com/portrait/Hello World.png?theme=Light&font-size=100px";
const getRoute = createRoute("GET");
const ctx = new Context(new Request(url), connInfo);

Deno.test("overview", async function () {
  assertEquals(
    (await getRoute({
      pathname: "/portrait/*",
      search: "INVALID=*",
    })(
      serveOgImage,
    )(ctx)).response.ok,
    false,
  );
  assertEquals(
    (await getRoute({
      pathname: "/portrait/*",
      search: "theme=*",
    })(
      serveOgImage,
    )(ctx)).response.ok,
    true,
  );
  await assertRejects(
    async () => {
      await getRoute({
        pathname: "/portrait/*",
        search: "theme=*",
      })(
        serveOgImage,
      )(
        new Context(
          new Request(
            "https://example.com/portrait/Hello World.INVALID?theme=Light&font-size=100px",
          ),
          connInfo,
        ),
      );
    },
    HttpError,
    "The resource has an invalid file extension.",
  );
});