Jest in watch mode didn't work

Questions
1

Describe the issue/error/question

Jest is run in watch mode, but it seems not to catch the changes.

Please share the workflow

I’d like to develop my custom node in TDD,
then I set up a jest --watch in packages/nodes-base/package.json

{
...
  "scripts": {
    "dev": "npm run watch",
    ...
    "test": "jest",
    "test-watch": "jest --watch" <-- added
...

and I run it with lerna run test-watch under the root of the project.

I can see it run, but when I change something in the newly created node file,
no test run, nothing happens.

➜  n8n git:(feature/#8047-gllue-node-auth) ✗ lerna run test-watch
info cli using local version of lerna
lerna notice cli v3.22.1
lerna info versioning independent
lerna info Executing command in 1 package: "npm run test-watch"

Information on your n8n setup

  • n8n version: 0.149.0
  • Database you’re using (default: SQLite): Postgres
  • Running n8n with the execution process [own(default), main]: default
  • Running n8n via [Docker, npm, n8n.cloud, desktop app]: npm
2

Could you try adding "test-watch": "jest --watch" to packages/nodes-base/package.json and running it from inside the package?

2 Likes
3

@ivov thanks! It works.

➜  nodes-base git:(feature/#8047-gllue-node-auth) ✗ pwd
/Users/top20/Offices/n8n/packages/nodes-base
➜  nodes-base git:(feature/#8047-gllue-node-auth) ✗ npm run test-watch

 FAIL  test/nodes/Gllue/helpers.test.ts
  Private Token Generator
    ✓ should get current date string (2 ms)
    ✓ should connect the data with comma (1 ms)
    ✓ should pad string with 16 length with 15
    ✓ should pad string with 16 length with 16
    ✓ should pad string with 32 length with 17 (1 ms)
    ✕ should pad string with 48 length with 33 (2 ms)
    ✓ should pad string with 48 length
    ✓ should pad string with enough space (1 ms)
    ✓ should generate token with AES KEY (1 ms)

  ● Private Token Generator › should pad string with 48 length with 33

    expect(received).toEqual(expected) // deep equality

    Expected: 48
    Received: 33120

      38 | 	it('should pad string with 48 length with 33', () => {
      39 | 		const realData = helpers.get16TimesLength(33111);
    > 40 | 		expect(realData).toEqual(3 * SCALE_SIZE);
         | 		                 ^
      41 | 	})
      42 | 	it('should pad string with 48 length', () => {
      43 | 		const realData = helpers.padWithSpaceIn16Times(TIMESTAMP_EMAIL_CONNECTED);

      at Object.<anonymous> (test/nodes/Gllue/helpers.test.ts:40:20)

Test Suites: 1 failed, 1 total
Tests:       1 failed, 8 passed, 9 total
Snapshots:   0 total
Time:        1.341 s
Ran all test suites related to changed files.

Watch Usage
 › Press a to run all tests.
 › Press f to run only failed tests.
 › Press p to filter by a filename regex pattern.
 › Press t to filter by a test name regex pattern.
 › Press q to quit watch mode.
 › Press Enter to trigger a test run.
1 Like