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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.import {  assert,  assertEquals,  assertRejects,  assertThrows,} from "../../testing/asserts.ts";import { assertCallbackErrorUncaught } from "../_utils.ts";import randomBytes, { MAX_RANDOM_VALUES, MAX_SIZE } from "./randomBytes.ts";
Deno.test("randomBytes sync works correctly", function () {  assertEquals(randomBytes(0).length, 0, "len: " + 0);  assertEquals(randomBytes(3).length, 3, "len: " + 3);  assertEquals(randomBytes(30).length, 30, "len: " + 30);  assertEquals(randomBytes(300).length, 300, "len: " + 300);  assertEquals(    randomBytes(17 + MAX_RANDOM_VALUES).length,    17 + MAX_RANDOM_VALUES,    "len: " + 17 + MAX_RANDOM_VALUES,  );  assertEquals(    randomBytes(MAX_RANDOM_VALUES * 100).length,    MAX_RANDOM_VALUES * 100,    "len: " + MAX_RANDOM_VALUES * 100,  );  assertThrows(() => randomBytes(MAX_SIZE + 1));  assertThrows(() => randomBytes(-1));});
Deno.test("randomBytes async works correctly", function () {  randomBytes(0, function (err, resp) {    assert(!err);    assertEquals(resp?.length, 0, "len: " + 0);  });  randomBytes(3, function (err, resp) {    assert(!err);    assertEquals(resp?.length, 3, "len: " + 3);  });  randomBytes(30, function (err, resp) {    assert(!err);    assertEquals(resp?.length, 30, "len: " + 30);  });  randomBytes(300, function (err, resp) {    assert(!err);    assertEquals(resp?.length, 300, "len: " + 300);  });  randomBytes(17 + MAX_RANDOM_VALUES, function (err, resp) {    assert(!err);    assertEquals(      resp?.length,      17 + MAX_RANDOM_VALUES,      "len: " + 17 + MAX_RANDOM_VALUES,    );  });  randomBytes(MAX_RANDOM_VALUES * 100, function (err, resp) {    assert(!err);    assertEquals(      resp?.length,      MAX_RANDOM_VALUES * 100,      "len: " + MAX_RANDOM_VALUES * 100,    );  });  assertThrows(() =>    randomBytes(MAX_SIZE + 1, function (err) {      //Shouldn't throw async      assert(!err);    })  );  assertRejects(() =>    new Promise((resolve, reject) => {      randomBytes(-1, function (err, res) {        //Shouldn't throw async        if (err) {          reject(err);        } else {          resolve(res);        }      });    })  );});
Deno.test("[std/node/crypto] randomBytes callback isn't called twice if error is thrown", async () => {  const importUrl = new URL("./randomBytes.ts", import.meta.url);  await assertCallbackErrorUncaught({    prelude: `import randomBytes from ${JSON.stringify(importUrl)}`,    invocation: "randomBytes(0, ",  });});