mat-slide-toggle component's toggle() method does not emit change event

[ychaikin]

Bug, feature request, or proposal:

Bug

What is the expected behavior?

When calling component's toggle method programmatically, change event should be emitted.

What is the current behavior?

Simply flips the boolean value of its checked property.

What are the steps to reproduce?

StackBlitz code sample with the test:
https://stackblitz.com/edit/angular-material-slide-toggle-test-qzbvad?file=app%2Fmat-slide-toggle-bug.component.spec.ts

What is the use-case or motivation for changing an existing behavior?

This would be very useful when testing behavior, but I can see how it would be useful for some programmatic toggling during regular use as well.

Which versions of Angular, Material, OS, TypeScript, browsers are affected?

All

Is there anything else we should know?

no

[ychaikin]

If this is indeed a bug and not "as intended", I can probably help out and put together a PR to fix.