Added vitest testutils module

Author: aabmets

vitest.config.ts

@@ -33,7 +33,7 @@ export default defineConfig({
       alias: {
          "@src": path.resolve(__dirname, "src"),
          "@types": path.resolve(__dirname, "types/internal.d.ts"),
-         "@testutils": path.resolve(__dirname, "testutils"),
+         "@testutils": path.resolve(__dirname, "vitest/testutils/index.ts"),
       },
    },
 });

vitest/tests/utils.test.ts

@@ -9,16 +9,15 @@
  *   SPDX-License-Identifier: Apache-2.0
  */
 
-import crypto from "node:crypto";
 import fs from "node:fs";
-import { tmpdir } from "node:os";
 import path from "node:path";
 import utils from "@src/utils";
+import * as tu from "@testutils";
 import type * as t from "@types";
 import { afterAll, afterEach, beforeAll, describe, expect, it, vi } from "vitest";
 
 describe("searchUpwards", () => {
-   const tempBase = path.join(tmpdir(), "vitest", crypto.randomBytes(8).toString("hex"));
+   const tempBase = tu.getTempDirPath();
    const subDirName = "sub-dir";
    const nestedSubDirName = "nested-sub-dir";
    const targetFileName = "targetFile.txt";

vitest/tests/worker.test.ts

@@ -9,14 +9,13 @@
  *   SPDX-License-Identifier: Apache-2.0
  */
 
-import crypto from "node:crypto";
 import fsp from "node:fs/promises";
-import { tmpdir } from "node:os";
 import path from "node:path";
 import { Worker } from "node:worker_threads";
 import * as c from "@src/constants";
 import * as s from "@src/schemas";
 import utils from "@src/utils";
+import * as tu from "@testutils";
 import type * as t from "@types";
 import { assert } from "superstruct";
 import { describe, expect, it } from "vitest";
@@ -26,7 +25,7 @@ describe("worker", () => {
    it("should use worker threads to download and decompress archives", options, async () => {
       const option: t.RemoteBlobOption = {
          url: "https://github.com/aabmets/rollup-plugin-pull-remote-blob/archive/refs/heads/main.zip",
-         dest: path.join(tmpdir(), "vitest", crypto.randomBytes(8).toString("hex")),
+         dest: tu.getTempDirPath(),
          decompress: {
             filter: ["README.md", "src"],
             strip: 1,

vitest/testutils/index.ts

@@ -0,0 +1,19 @@
+/*
+ *   MIT License
+ *
+ *   Copyright (c) 2024, Mattias Aabmets
+ *
+ *   The contents of this file are subject to the terms and conditions defined in the License.
+ *   You may not use, modify, or distribute this file except in compliance with the License.
+ *
+ *   SPDX-License-Identifier: Apache-2.0
+ */
+
+import crypto from "node:crypto";
+import { tmpdir } from "node:os";
+import path from "node:path";
+
+export function getTempDirPath() {
+   const randString = crypto.randomBytes(8).toString("hex");
+   return path.join(tmpdir(), "vitest", randString);
+}