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/*! * Based on https://github.com/jshttp/fresh/blob/master/test/fresh.js * Copyright(c) 2012 TJ Holowaychuk * Copyright(c) 2016-2017 Douglas Christopher Wilson * Copyright(c) 2020 Douglas Christian Norrman * MIT Licensed */import { assert } from "https://deno.land/std@v0.57.0/testing/asserts.ts";import fresh from "./mod.ts";const { test } = Deno;
test("non-conditional GET: should be stale", () => {  const reqHeaders = new Headers({});  const resHeaders = new Headers({});  assert(!fresh(reqHeaders, resHeaders));});
//'when requested with If-None-Match'//'when ETags match'test("should be fresh", () => {  const reqHeaders = new Headers({ "If-None-Match": '"foo"' });  const resHeaders = new Headers({ "ETag": '"foo"' });  assert(fresh(reqHeaders, resHeaders));});
// 'when ETags mismatch'test("should be stale", () => {  const reqHeaders = new Headers({ "If-None-Match": '"foo"' });  const resHeaders = new Headers({ "ETag": '"bar"' });  assert(!fresh(reqHeaders, resHeaders));});
// 'when at least one matches'test("should be fresh", () => {  const reqHeaders = new Headers({ "If-None-Match": ' "bar" , "foo"' });  const resHeaders = new Headers({ "ETag": '"foo"' });  assert(fresh(reqHeaders, resHeaders));});
// 'when ETag is missing'test("should be stale", () => {  const reqHeaders = new Headers({ "If-None-Match": '"foo"' });  const resHeaders = new Headers({});  assert(!fresh(reqHeaders, resHeaders));});
// 'when ETag is weak'test("should be fresh on exact match", () => {  const reqHeaders = new Headers({ "If-None-Match": 'W/"foo"' });  const resHeaders = new Headers({ "ETag": 'W/"foo"' });  assert(fresh(reqHeaders, resHeaders));});test("should be fresh on strong match", () => {  const reqHeaders = new Headers({ "If-None-Match": 'W/"foo"' });  const resHeaders = new Headers({ "ETag": '"foo"' });  assert(fresh(reqHeaders, resHeaders));});
// 'when ETag is strong'test("should be fresh on exact match", () => {  const reqHeaders = new Headers({ "If-None-Match": '"foo"' });  const resHeaders = new Headers({ "ETag": '"foo"' });  assert(fresh(reqHeaders, resHeaders));});test("should be fresh on weak match", () => {  const reqHeaders = new Headers({ "If-None-Match": '"foo"' });  const resHeaders = new Headers({ "ETag": 'W/"foo"' });  assert(fresh(reqHeaders, resHeaders));});
// 'when * is given'test("should be fresh", () => {  const reqHeaders = new Headers({ "If-None-Match": "*" });  const resHeaders = new Headers({ "ETag": '"foo"' });  assert(fresh(reqHeaders, resHeaders));});test("should get ignored if not only value", () => {  const reqHeaders = new Headers({ "If-None-Match": '*, "bar"' });  const resHeaders = new Headers({ "ETag": '"foo"' });  assert(!fresh(reqHeaders, resHeaders));});
// 'when requested with If-Modified-Since'// 'when modified since the date'test("should be stale", () => {  const reqHeaders = new Headers(    { "If-Modified-Since": "Sat, 01 Jan 2000 00:00:00 GMT" },  );  const resHeaders = new Headers(    { "Last-Modified": "Sat, 01 Jan 2000 01:00:00 GMT" },  );  assert(!fresh(reqHeaders, resHeaders));});
// 'when unmodified since the date'test("should be fresh", () => {  const reqHeaders = new Headers(    { "If-Modified-Since": "Sat, 01 Jan 2000 01:00:00 GMT" },  );  const resHeaders = new Headers(    { "Last-Modified": "Sat, 01 Jan 2000 00:00:00 GMT" },  );  assert(fresh(reqHeaders, resHeaders));});
// 'when Last-Modified is missing'test("should be stale", () => {  const reqHeaders = new Headers(    { "If-Modified-Since": "Sat, 01 Jan 2000 00:00:00 GMT" },  );  const resHeaders = new Headers({});  assert(!fresh(reqHeaders, resHeaders));});
//'with invalid If-Modified-Since date'test("should be stale", () => {  const reqHeaders = new Headers({ "If-Modified-Since": "foo" });  const resHeaders = new Headers(    { "Last-Modified": "Sat, 01 Jan 2000 00:00:00 GMT" },  );  assert(!fresh(reqHeaders, resHeaders));});
//'with invalid Last-Modified date'test("should be stale", () => {  const reqHeaders = new Headers(    { "If-Modified-Since": "Sat, 01 Jan 2000 00:00:00 GMT" },  );  const resHeaders = new Headers({ "Last-Modified": "foo" });  assert(!fresh(reqHeaders, resHeaders));});
// 'when requested with If-Modified-Since and If-None-Match'// 'when both match'test("should be fresh", () => {  const reqHeaders = new Headers(    {      "If-None-Match": '"foo"',      "If-Modified-Since": "Sat, 01 Jan 2000 01:00:00 GMT",    },  );  const resHeaders = new Headers(    { "ETag": '"foo"', "Last-Modified": "Sat, 01 Jan 2000 00:00:00 GMT" },  );  assert(fresh(reqHeaders, resHeaders));});
// 'when only ETag matches'test("should be stale", () => {  const reqHeaders = new Headers(    {      "If-None-Match": '"foo"',      "If-Modified-Since": "Sat, 01 Jan 2000 00:00:00 GMT",    },  );  const resHeaders = new Headers(    { "ETag": '"foo"', "Last-Modified": "Sat, 01 Jan 2000 01:00:00 GMT" },  );  assert(!fresh(reqHeaders, resHeaders));});
// 'when only Last-Modified matches'test("should be stale", () => {  const reqHeaders = new Headers(    {      "If-None-Match": '"foo"',      "If-Modified-Since": "Sat, 01 Jan 2000 01:00:00 GMT",    },  );  const resHeaders = new Headers(    { "ETag": '"bar"', "Last-Modified": "Sat, 01 Jan 2000 00:00:00 GMT" },  );  assert(!fresh(reqHeaders, resHeaders));});
// 'when none match'test("should be stale", () => {  const reqHeaders = new Headers(    {      "If-None-Match": '"foo"',      "If-Modified-Since": "Sat, 01 Jan 2000 00:00:00 GMT",    },  );  const resHeaders = new Headers(    { "ETag": '"bar"', "Last-Modified": "Sat, 01 Jan 2000 01:00:00 GMT" },  );  assert(!fresh(reqHeaders, resHeaders));});
// 'when requested with Cache-Control: no-cache'test("should be stale", () => {  const reqHeaders = new Headers({ "Cache-Control": " no-cache" });  const resHeaders = new Headers({});  assert(!fresh(reqHeaders, resHeaders));});
//'when ETags match'test("should be stale", () => {  const reqHeaders = new Headers(    { "Cache-Control": " no-cache", "If-None-Match": '"foo"' },  );  const resHeaders = new Headers({ "ETag": '"foo"' });  assert(!fresh(reqHeaders, resHeaders));});
//'when unmodified since the date', () => {test("should be stale", () => {  const reqHeaders = new Headers(    {      "Cache-Control": " no-cache",      "If-Modified-Since": "Sat, 01 Jan 2000 01:00:00 GMT",    },  );  const resHeaders = new Headers(    { "Last-Modified": "Sat, 01 Jan 2000 00:00:00 GMT" },  );  assert(!fresh(reqHeaders, resHeaders));});