Compilation error when running unit tests

Question

There is compilation type related error present only when running unit tests (jasmine).

This is a blocker to let us upgrade to Angular 20 and DayPilot 2025.3.6564 at the moment.

Did not notice this behavior in angular 19 and DayPilot version 2023.4.5839 (we did not update it since then)

You can reproduce the error in your Angular 20 quick start project https://code.daypilot.org/55207/angular-scheduler-quick-start-project

You need a slight edit to even make it run. Please update imports in the app.spec.ts

 imports: [App, HttpClientTestingModule],

The type error:

Chrome 138.0.0.0 (Windows 10) App should create the app FAILED
        TypeError: Cannot read properties of undefined (reading 'Menu')
            at SchedulerComponent2.<instance_members_initializer> (src/app/scheduler/scheduler.component.ts:46:31)
            at new SchedulerComponent2 (src/app/scheduler/scheduler.component.ts:97:3)
            at NodeInjectorFactory.SchedulerComponent2_Factory [as factory] (ng:///SchedulerComponent2/ɵfac.js:4:10)
            at getNodeInjectable (node_modules/@angular/core/fesm2022/debug_node-Dn-GvQJo.mjs:1974:44)
            at instantiateAllDirectives (node_modules/@angular/core/fesm2022/debug_node-Dn-GvQJo.mjs:7381:27)
            at createDirectivesInstances (node_modules/@angular/core/fesm2022/debug_node-Dn-GvQJo.mjs:7156:5)
            at ɵɵelementStart (node_modules/@angular/core/fesm2022/debug_node-Dn-GvQJo.mjs:22234:9)
            at ɵɵelement (node_modules/@angular/core/fesm2022/debug_node-Dn-GvQJo.mjs:22289:5)
            at App2_Template (ng:///App2.js:5:21)
            at executeTemplate (node_modules/@angular/core/fesm2022/debug_node-Dn-GvQJo.mjs:7142:9)