test(e2e): fs testings - file create, rename, unlink

e2e-tests/util/basic.ts

@@ -0,0 +1,42 @@
+// This file is used to store basic functions that are used in other utils
+// Should have no dependency on other utils
+
+import * as process from 'process'
+
+export const IsMac = process.platform === 'darwin'
+export const IsLinux = process.platform === 'linux'
+export const IsWindows = process.platform === 'win32'
+export const IsCI = process.env.CI === 'true'
+export const modKey = IsMac ? 'Meta' : 'Control'
+
+export function randomString(length: number) {
+  const characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
+
+  let result = '';
+  const charactersLength = characters.length;
+  for (let i = 0; i < length; i++) {
+    result += characters.charAt(Math.floor(Math.random() * charactersLength));
+  }
+
+  return result;
+}
+
+export function randomLowerString(length: number) {
+  const characters = 'abcdefghijklmnopqrstuvwxyz0123456789';
+
+  let result = '';
+  const charactersLength = characters.length;
+  for (let i = 0; i < length; i++) {
+    result += characters.charAt(Math.floor(Math.random() * charactersLength));
+  }
+
+  return result;
+}
+
+export function randomInt(min: number, max: number): number {
+  return Math.floor(Math.random() * (max - min + 1) + min)
+}
+  
+export function randomBoolean(): boolean {
+  return Math.random() < 0.5;
+}