Deno content server - medium course - section 3 handleRequest UT

controller_test.ts

import { handleRequest } from "../../controller.ts";
import { assert, assertExists } from "https://deno.land/std/testing/asserts.ts";

const baseUrl = "http://localhost:8000",
  token = "cba633d4-59f3-42a5-af00-b7430c3a65d8";

Deno.test("No Authorization header", async () => {
  const req = new Request(baseUrl + "/");
  const resp = await handleRequest(req);
  assertExists(resp);
  assertExists(resp.status);
  assert(resp.status === 401);
});

Deno.test("Incomplete Authorization header", async () => {
  const req = new Request(baseUrl + "/", {
    headers: {
      "Authorization": "Bearer",
    },
  });
  const resp = await handleRequest(req);
  assertExists(resp);
  assertExists(resp.status);
  assert(resp.status === 401);
});

Deno.test("Invalid key in Authorization header", async () => {
  const req = new Request(baseUrl + "/", {
    headers: {
      "Authorization": "Bearer fc485dd4-6237-42c3-aad8-a4eeef058239",
    },
  });
  const resp = await handleRequest(req);
  assertExists(resp);
  assertExists(resp.status);
  assert(resp.status === 401);
});

Deno.test("No file path", async () => {
  const req = new Request(baseUrl + "/", {
    headers: {
      "Authorization": `Bearer ${token}`,
    },
  });
  const resp = await handleRequest(req);
  assertExists(resp);
  assertExists(resp.status);
  assert(resp.status === 422);
});

Deno.test("Directory path", async () => {
  const req = new Request(baseUrl + "/data", {
    headers: {
      "Authorization": `Bearer ${token}`,
    },
  });
  const resp = await handleRequest(req);
  assertExists(resp);
  assertExists(resp.status);
  assert(resp.status === 422);
});

Deno.test("Text file", async () => {
  const req = new Request(baseUrl + "/data/textFile.txt", {
    headers: {
      "Authorization": `Bearer ${token}`,
    },
  });
  const resp = await handleRequest(req);
  assertExists(resp);
  assertExists(resp.status);
  assertExists(resp.headers.get("content-length"));
  assert(Number(resp.headers.get("content-length")) === 22);
  assertExists(resp.headers.get("content-type"));
  assert(resp.headers.get("content-type") === "text/plain");
  assert(resp.status === 200);
  const respBody = await resp.arrayBuffer();
  assert(respBody.byteLength === 22);
});

Deno.test("PDF file", async () => {
  const req = new Request(baseUrl + "/data/pdfFile.pdf", {
    headers: {
      "Authorization": `Bearer ${token}`,
    },
  });
  const resp = await handleRequest(req);
  assertExists(resp);
  assertExists(resp.status);
  assertExists(resp.headers.get("content-length"));
  assert(Number(resp.headers.get("content-length")) === 69273);
  assertExists(resp.headers.get("content-type"));
  assert(resp.headers.get("content-type") === "application/pdf");
  assert(resp.status === 200);
  const respBody = await resp.arrayBuffer();
  assert(respBody.byteLength === 69273);
});