test(unit): add some tests for pseudo-random id generating function

test/pseudo-random-id.test.ts

@@ -0,0 +1,13 @@
+import { describe, expect, it } from 'vitest'
+
+import { generatePseudoRandomId } from '../src/utils/pseudo-random'
+
+describe(generatePseudoRandomId, () => {
+  it('generates outout of expected default length', () => {
+    expect(generatePseudoRandomId()).toHaveLength(5)
+  })
+
+  it('generates outout of requested length', () => {
+    expect(generatePseudoRandomId(6)).toHaveLength(6)
+  })
+})