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denoland-deno/tests/unit_node/internal/_randomInt_test.ts
2024-07-25 15:30:28 +10:00

32 lines
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TypeScript

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { randomInt } from "node:crypto";
import { assert, assertThrows } from "@std/assert";
const between = (x: number, min: number, max: number) => x >= min && x < max;
Deno.test("[node/crypto.randomInt] One Param: Max", () => {
assert(between(randomInt(55), 0, 55));
});
Deno.test("[node/crypto.randomInt] Two Params: Max and Min", () => {
assert(between(randomInt(40, 120), 40, 120));
});
Deno.test("[node/crypto.randomInt] Max and Callback", () => {
let called = false;
randomInt(3, (_err, val) => {
called = true;
assert(between(val as number, 0, 3));
});
assert(called);
});
Deno.test("[node/crypto.randomInt] Min, Max and Callback", () => {
randomInt(3, 5, (_err, val) => {
assert(between(val as number, 3, 5));
});
});
Deno.test("[node/crypto.randomInt] Min is bigger than Max", () => {
assertThrows(() => randomInt(45, 34));
});