Office-AddIn-Mock failed to mock getOfficeDisplayLanguage and build a project

[rosergeev]

Current behavior

I'm trying to mock Office.context.displayLanguage property, but without success. I've got the following error while accessing this property:
"error, property was not loaded". This is an output from console.log. I didn't get which property I should load and how?

And when I try to build project I've got ts2740 error saying that mock object doesn't implement members defined by Office namespace and which ain't used in fact.

Steps to Reproduce

https://codesandbox.io/p/devbox/officemock-rjtz6m?file=%2Fsrc%2FofficeService.test.ts%3A8%2C23

Context

• Operating System: Windows 11, 22H2 22621.3296
• Node version: v20.11.1

Just execute npm run test in repro