tests/exception/BaseError.test.ts

   1 /**
   2  * @file Tests for BaseError
   3  * @description Unit tests for base error class functionality
   4  */
   5 import assert from 'node:assert/strict'
   6 import { afterEach, describe, it } from 'node:test'
   7
   8 import { BaseError } from '../../src/exception/BaseError.js'
   9 import { standardCleanup } from '../helpers/TestLifecycleHelpers.js'
  10
  11 await describe('BaseError', async () => {
  12   afterEach(() => {
  13     standardCleanup()
  14   })
  15   await it('should create instance with default values', () => {
  16     const baseError = new BaseError()
  17     assert.ok(baseError instanceof BaseError)
  18     assert.strictEqual(baseError.name, 'BaseError')
  19     assert.strictEqual(baseError.message, '')
  20     assert.ok(typeof baseError.stack === 'string')
  21     assert.notStrictEqual(baseError.stack, '')
  22     assert.strictEqual(baseError.cause, undefined)
  23     assert.ok(baseError.date instanceof Date)
  24   })
  25
  26   await it('should create instance with custom message', () => {
  27     const baseError = new BaseError('Test message')
  28     assert.ok(baseError instanceof BaseError)
  29     assert.strictEqual(baseError.message, 'Test message')
  30   })
  31
  32   await it('should be an instance of Error', () => {
  33     const baseError = new BaseError()
  34     assert.ok(baseError instanceof Error)
  35   })
  36
  37   await it('should contain stack trace with class name', () => {
  38     const baseError = new BaseError()
  39     assert.ok(baseError.stack?.includes('BaseError'))
  40   })
  41
  42   await it('should set date close to current time', () => {
  43     const beforeNow = Date.now()
  44     const baseError = new BaseError()
  45     const afterNow = Date.now()
  46     assert.ok(baseError.date.getTime() >= beforeNow - 1000)
  47     assert.ok(baseError.date.getTime() <= afterNow + 1000)
  48   })
  49
  50   await it('should set name to subclass name when extended', () => {
  51     class TestSubError extends BaseError {}
  52
  53     const testSubError = new TestSubError()
  54     assert.strictEqual(testSubError.name, 'TestSubError')
  55     assert.ok(testSubError instanceof BaseError)
  56     assert.ok(testSubError instanceof Error)
  57   })
  58 })