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// Copyright 2018-2019 the oak authors. All rights reserved. MIT license.
import { assert, assertEquals, assertStrictEq, test } from "./test_deps.ts";
import { Application } from "./application.ts";import { Context } from "./context.ts";import { Status } from "./deps.ts";import httpErrors from "./httpError.ts";import { Request } from "./request.ts";import { Response } from "./response.ts";import { send } from "./send.ts";
let encodingsAccepted = "identity";
function createMockApp<S extends object = { [key: string]: any }>(  state = {} as S): Application<S> {  return {    state  } as any;}
function createMockContext<S extends object = { [key: string]: any }>(  app: Application<S>,  path = "/",  method = "GET") {  return {    app,    request: {      acceptsEncodings() {        return encodingsAccepted;      },      headers: new Headers(),      method,      path,      search: undefined,      searchParams: new URLSearchParams(),      url: path    } as Request,    response: {      status: Status.OK,      body: undefined,      headers: new Headers()    } as Response,    state: app.state  } as Context<S>;}
function setup<S extends object = { [key: string]: any }>(  path = "/",  method = "GET"): {  app: Application<S>;  context: Context<S>;} {  encodingsAccepted = "identity";  const app = createMockApp<S>();  const context = createMockContext<S>(app, path, method);  return { app, context };}
test(async function sendHtml() {  const { context } = setup("/test.html");  const fixture = await Deno.readFile("./fixtures/test.html");  await send(context, context.request.path, {    root: "./fixtures"  });  assertEquals(context.response.body, fixture);  assertEquals(context.response.type, ".html");  assertEquals(    context.response.headers.get("content-length"),    String(fixture.length)  );  assert(context.response.headers.get("last-modified") != null);  assertEquals(context.response.headers.get("cache-control"), "max-age=0");});
test(async function sendGzip() {  const { context } = setup("/test.json");  const fixture = await Deno.readFile("./fixtures/test.json.gz");  encodingsAccepted = "gzip";  await send(context, context.request.path, {    root: "./fixtures"  });  assertEquals(context.response.body, fixture);  assertEquals(context.response.type, ".json");  assertEquals(context.response.headers.get("content-encoding"), "gzip");  assertEquals(    context.response.headers.get("content-length"),    String(fixture.length)  );});
test(async function sendBrotli() {  const { context } = setup("/test.json");  const fixture = await Deno.readFile("./fixtures/test.json.br");  encodingsAccepted = "br";  await send(context, context.request.path, {    root: "./fixtures"  });  assertEquals(context.response.body, fixture);  assertEquals(context.response.type, ".json");  assertEquals(context.response.headers.get("content-encoding"), "br");  assertEquals(    context.response.headers.get("content-length"),    String(fixture.length)  );});
test(async function sendIdentity() {  const { context } = setup("/test.json");  const fixture = await Deno.readFile("./fixtures/test.json");  await send(context, context.request.path, {    root: "./fixtures"  });  assertEquals(context.response.body, fixture);  assertEquals(context.response.type, ".json");  assertStrictEq(context.response.headers.get("content-encoding"), null);  assertEquals(    context.response.headers.get("content-length"),    String(fixture.length)  );});
test(async function send404() {  const { context } = setup("/foo.txt");  encodingsAccepted = "identity";  let didThrow = false;  try {    await send(context, context.request.path, {      root: "./fixtures"    });  } catch (e) {    assert(e instanceof httpErrors.NotFound);    didThrow = true;  }  assert(didThrow);});