Hey @Nurul, any idea what might be missing or, what I might be doing wrong? Thanks!

I decided to try and do the unit testing tutorial in a separate isolated repo to see if I can get it to work that way. I very quickly ran into a problem however. When running

npm install --save-dev jest typescript ts-jest @types/jest

it will install the latest versions of these dependencies. If you now run

npm install jest-mock-extended@2.0.4 --save-dev

as stated in the tutorial, I get:

❯ npm install jest-mock-extended@2.0.4 --save-dev
npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR! 
npm ERR! While resolving: prisma-unit-testing@1.0.0
npm ERR! Found: jest@28.1.3
npm ERR! node_modules/jest
npm ERR!   dev jest@"^28.1.3" from the root project
npm ERR! 
npm ERR! Could not resolve dependency:
npm ERR! peer jest@"^24.0.0 || ^25.0.0 || ^26.0.0 || ^27.0.0" from jest-mock-extended@2.0.4
npm ERR! node_modules/jest-mock-extended
npm ERR!   dev jest-mock-extended@"2.0.4" from the root project
npm ERR! 
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with --force, or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.
npm ERR! 
npm ERR! See /Users/schalkneethling/.npm/eresolve-report.txt for a full report.

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/schalkneethling/.npm/_logs/2022-08-13T18_58_03_126Z-debug-0.log

I also notice in the quick start guide at step 4 https://www.prisma.io/docs/getting-started/quickstart#4-explore-how-to-send-queries-to-your-database-with-prisma-client, it starts to use the

PrismaClient

but there has been no instructions to install the client. For example here it does clearly explain to do so: https://www.prisma.io/docs/getting-started/setup-prisma/add-to-existing-project/mongodb/install-prisma-client-typescript-mongodb

I got this all working but had to do quite a bit of cross-reference 🙂 Will see if I can figure what is different in my project that stops it from running there.

I documented what I did to get it working here: https://github.com/prisma/prisma/discussions/7084#discussioncomment-3391079

@Nurul ^^