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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { parse, type ParseOptions } from "./parse.ts";import {  assert,  assertEquals,  assertStrictEquals,  assertThrows,} from "../assert/mod.ts";
// The test code for the jsonc module can also be found in the testcode directory.
function assertValidParse(  text: string,  expected: unknown,  options?: ParseOptions,) {  assertEquals(parse(text, options), expected);}
function assertInvalidParse(  text: string,  // deno-lint-ignore no-explicit-any  ErrorClass: new (...args: any[]) => Error,  msgIncludes?: string,  options?: ParseOptions,) {  assertThrows(    () => parse(text, options),    ErrorClass,    msgIncludes,  );}
Deno.test({  name: "parse() handles single line comment",  fn() {    assertValidParse(`"aaa"//comment`, "aaa");    assertValidParse(`["aaa"//comment\n,"aaa"]`, ["aaa", "aaa"]);    assertValidParse(`["aaa"//comment\r,"aaa"]`, ["aaa", "aaa"]);    assertValidParse(`["aaa"//comment\n\r,"aaa"]`, ["aaa", "aaa"]);  },});
Deno.test({  name: "parse() handles multi line comments",  fn() {    assertValidParse(`"aaa"/*comment*/`, "aaa");    assertValidParse(`100/*comment*/`, 100);    assertValidParse(`"aaa/*comment*/"`, "aaa/*comment*/");    assertValidParse(`"aaa"/*comment\ncomment*/`, "aaa");    assertInvalidParse(`"aaa"/*`, SyntaxError);    assertInvalidParse(`"aaa"/*/`, SyntaxError);  },});
Deno.test({  name: "parse() handles special characters",  fn() {    assertValidParse(`"👪"`, "👪");    assertValidParse(`"🦕"`, "🦕");    assertValidParse(      `"\u543e\u8f29\u306f\u732b\u3067\u3042\u308b\u3002"`,      "\u543e\u8f29\u306f\u732b\u3067\u3042\u308b\u3002",    );    assertValidParse(      `"\\" \\\\ \\/ \\b \\f \\n \\r \\t"`,      '" \\ \/ \b \f \n \r \t',    );  },});
Deno.test({  name: "parse() handles #numberEndToken correctly",  fn() {    // Correctly parses the letters after the numbers (` \t\r\n[]{}:,/`)    assertValidParse(`{"a":0}`, { a: 0 });    assertValidParse(`[0]`, [0]);    assertValidParse(`[0,]`, [0]);    assertValidParse(`0//`, 0);    assertValidParse(`0\r`, 0);    assertValidParse(`0\n`, 0);    assertValidParse(`0\t`, 0);    assertValidParse(`0 `, 0);    assertInvalidParse(`{"a":0{}`, SyntaxError);    assertInvalidParse(`{"a":0[}`, SyntaxError);    assertInvalidParse(`{"a":0:}`, SyntaxError);  },});
Deno.test({  name: "parse() throws error message",  fn() {    assertInvalidParse(      `:::::`,      SyntaxError,      "Unexpected token : in JSONC at position 0",    );    assertInvalidParse(      `[`,      SyntaxError,      "Unexpected end of JSONC input",    );    assertInvalidParse(      `[]100`,      SyntaxError,      "Unexpected token 100 in JSONC at position 2",    );    assertInvalidParse(      `[aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa]`,      SyntaxError,      "Unexpected token aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa... in JSONC at position 1",    );  },});
Deno.test({  name: "parse() handles __proto__",  fn() {    // The result of JSON.parse and the result of JSONC.parse should match    const json = JSON.parse('{"__proto__": 100}');    const jsonc = parse('{"__proto__": 100}');    assertEquals(jsonc, json);    assertEquals((jsonc as Record<string, number>).__proto__, 100);    assertEquals((jsonc as Record<string, string>).__proto__, json.__proto__);    assertStrictEquals(Object.getPrototypeOf(jsonc), Object.prototype);    assertStrictEquals(      Object.getPrototypeOf(jsonc),      Object.getPrototypeOf(json),    );  },});
Deno.test({  name: "parse() handles duplicate object key",  fn() {    // The result of JSON.parse and the result of JSONC.parse should match    const json = JSON.parse('{"aaa": 0, "aaa": 1}');    const jsonc = parse('{"aaa": 0, "aaa": 1}');    assertEquals(jsonc, { aaa: 1 });    assertEquals(jsonc, json);  },});
Deno.test({  name: "parse() handles non-string input type",  fn() {    assertInvalidParse(      // deno-lint-ignore no-explicit-any      undefined as any,      SyntaxError,      "Unexpected token undefined in JSONC at position 0",    );    // deno-lint-ignore no-explicit-any    assertValidParse(0 as any, 0);  },});
Deno.test({  name: "parse() handles consecutive backslash",  fn() {    assertValidParse('"foo\\\\"', "foo\\");
    assertValidParse('  ["foo\\"", "bar"]', ['foo"', "bar"]);    assertInvalidParse('["foo\\\\"", "bar"]', SyntaxError);    assertValidParse('  ["foo\\\\\\"", "bar"]', ['foo\\"', "bar"]);    assertInvalidParse('["foo\\\\\\\\"", "bar"]', SyntaxError);
    assertInvalidParse('["foo\\", "bar"]', SyntaxError);    assertValidParse('  ["foo\\\\", "bar"]', ["foo\\", "bar"]);    assertInvalidParse('["foo\\\\\\", "bar"]', SyntaxError);    assertValidParse('  ["foo\\\\\\\\", "bar"]', ["foo\\\\", "bar"]);  },});
Deno.test({  name: "parse() uses Object.defineProperty when setting object property",  async fn() {    // Tests if the value is set using `Object.defineProperty(target, key, {value})`    // instead of `target[key] = value` when parsing the object.    // This makes a difference in behavior when __proto__ is set in Node.js and browsers.    // Using `Object.defineProperty` avoids prototype pollution in Node.js and browsers.    // reference: https://github.com/advisories/GHSA-9c47-m6qq-7p4h (CVE-2022-46175)
    const testCode = `      Object.defineProperty(Object.prototype, "__proto__", {        set() {          throw new Error("Don't try to set the value directly to the key __proto__.")        }      });      import { parse } from "${import.meta.resolve("./parse.ts")}";      parse('{"__proto__": {"isAdmin": true}}');    `;    const command = new Deno.Command(Deno.execPath(), {      stdout: "inherit",      stderr: "inherit",      args: ["eval", "--no-lock", testCode],    });    const { success } = await command.output();    assert(success);  },});