Wrong jasmine/wd2 typings in Angular 8/9

I created a new blank angular 9 project using next commands:

ng new my-app
npm install
ng serve

I added then() to test:

Then run:

ng test

Error occured:

ERROR in src/app/app.component.spec.ts:20:30 - error TS2339: Property 'then' does not exist on type 'boolean'.

20     expect(app).toBeTruthy().then(() => { });
                                ~~~~

After removing "@types/jasminewd2": "~2.0.3", from package.json, deleting then() of course and running:

npm install
ng test // no compilation error

Visual studio code reported that expect() matcher is sync method and returns boolean instead of Promise, just removed the .then() and everything works as it should.

## my environment

**Angular Version:**
Angular CLI: 9.1.1
Node: 12.16.1
OS: win32 x64

Angular: 9.1.2
... animations, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... router
Ivy Workspace: Yes

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.901.1
@angular-devkit/build-angular     0.901.1
@angular-devkit/build-optimizer   0.901.1
@angular-devkit/build-webpack     0.901.1
@angular-devkit/core              9.1.1
@angular-devkit/schematics        9.1.1
@angular/cli                      9.1.1
@ngtools/webpack                  9.1.1
@schematics/angular               9.1.1
@schematics/update                0.901.1
rxjs                              6.5.5
typescript                        3.8.3
webpack                           4.42.0

D:\my-app>node -v
v12.16.1

D:\my-app>npm -v
6.13.4

Not really sure this is an Angular bug, but package @types/jasminewd2 comes by default I suppose.

The actual problem here is in the IDE, where it's picking up the incorrect typings.

This is pretty much the same root cause as #8138 and is currently being tracking internal TOOL-1368

feat(@schematics/angular): add solutions style tsconfig structure

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feat(@schematics/angular): add solutions style tsconfig structure

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Wrong jasmine/wd2 typings in Angular 8/9 #17493

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Wrong jasmine/wd2 typings in Angular 8/9 #17493

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alan-agius4 commented on Apr 17, 2020

angular-automatic-lock-bot commented on Jun 20, 2020

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