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// Copyright 2018-2021 the oak authors. All rights reserved. MIT license.
// deno-lint-ignore-file
import type { Application } from "./application.ts";import type { Context } from "./context.ts";import { getQuery } from "./helpers.ts";import { assertEquals } from "./test_deps.ts";
const { test } = Deno;
function createMockApp<  S extends Record<string | number | symbol, any> = Record<string, any>,>(  state = {} as S,): Application<S> {  return {    state,  } as any;}
interface MockContextOptions<  S extends Record<string | number | symbol, any> = Record<string, any>,> {  app?: Application<S>;  method?: string;  params?: Record<string, string>;  path?: string;}
function createMockContext<  S extends Record<string | number | symbol, any> = Record<string, any>,>(  {    app = createMockApp(),    method = "GET",    params,    path = "/",  }: MockContextOptions = {},) {  const headers = new Headers();  return ({    app,    params,    request: {      headers: new Headers(),      method,      url: new URL(path, "https://localhost/"),    },    response: {      status: undefined,      body: undefined,      redirect(url: string | URL) {        headers.set("Location", encodeURI(String(url)));      },      headers,    },    state: app.state,  } as unknown) as Context<S>;}
test({  name: "getQuery - basic",  fn() {    const ctx = createMockContext({ path: "/?foo=bar&bar=baz" });    assertEquals(getQuery(ctx), { foo: "bar", bar: "baz" });  },});
test({  name: "getQuery - asMap",  fn() {    const ctx = createMockContext({ path: "/?foo=bar&bar=baz" });    assertEquals(      Array.from(getQuery(ctx, { asMap: true })),      [["foo", "bar"], ["bar", "baz"]],    );  },});
test({  name: "getQuery - merge params",  fn() {    const ctx = createMockContext(      { params: { foo: "qat", baz: "qat" }, path: "/?foo=bar&bar=baz" },    );    assertEquals(      getQuery(ctx, { mergeParams: true }),      { foo: "bar", baz: "qat", bar: "baz" },    );  },});