Jest cannot find module with relative path on docker - node.js

Question

I know there are some threads about a similar topic but tried various suggested solutions and neither worked.
The problem:
When running the jest tests written in TS on docker as part of a Jenkins pipeline, I got: Cannot find module '../../../common/src/SomeType' from 'dist/src/services/foo.services.js', where foo.services.js is what being tested.
This is my project structure; don't know why it was initially structured like this. I joint the party way too late.
MyProject123
client
package.json
tsconfig.json
...
common
tsconfig.json
src
SomeType.ts (NOTE: this is what can't be found by jest!)
Others.ts
server
dist
src
foo.services.ts (NOTE: this is what being tested)
tests
unit
services
foo.services.spec.ts (NOTE: this is the test!)
tsconfig.json
jest.conf.js
Inside foo.services.ts, it references SomeType as:
import { SomeType } from '../../../common/src/SomeType';
Inside server/tsconfig.json, it set the references in order to reference the common folder:
"references": [
{
"path": "../common"
}
],
"include": [
"src/**/*.ts",
"*.ts",
"src/**/*.json",
"tests/**/*.ts"
],
In jest.conf.js under server folder, it has:
moduleNameMapper: {
'^#/(.*)$': '<rootDir>/src/$1'
},`
Inside server/package.json, it has:
"jest": {
"testEnvironment": "node",
"rootDir": "./",
"modulePaths": [
"<rootDir>"
]
},
What's odd is all tests work fine locally on my machine. But it doesn't work when running in docker.
Guess I am missing some jest config setting somewhere?
----------------------------EDIT 1 ---------------------------
Here is our dockerfile that is relevant for the part:
FROM company.com/nodejs:16
ARG BUILD_MODE
USER root
ARG http_proxy=******
ARG https_proxy=$http_proxy
ARG no_proxy=******
ARG CI=true
ARG NPM_CONFIG__AUTH
WORKDIR /app
COPY . .
RUN npm cache clean --force
RUN npm install npm -g
WORKDIR /app/server
COPY server/package.json .
COPY server/package-lock.json .
COPY server/.npmrc .
RUN npm ci --loglevel verbose
RUN npm run build-ts
RUN rm -rf tests/coverage
RUN npm run test:unit //NOTE: runs the server unit tests

Answer 1

From the error you have
Cannot find module '../../../common/src/SomeType' from 'dist/src/services/foo.services.js'
looks like you are running Jest on your bundle files. (from dist/...)
As a reminder, Jest runs on source files, not on bundled files.
A quick fix, would be to run your test suite before bundling your App in your dockerfile :
# ...
RUN npm run test:unit
RUN npm run build-ts