These helpers are often imported by various tests throughout the
repository, but the helpers aren't exported/exposed from the public
entry-point; even though they confusingly reside in there.
This commit fixes this, and moves the helpers into
`packages/private/testing`. This is a preparation for the `ts_project`
migration where we don't want to leverage deep imports between packages.
PR Close#61472
There is nothing in the Router that requires ZoneJS and we do not need
`fakeAsync` as a mock clock. We can instead use any mock clock implementation
to speed up test execution.
This removes ZoneJS completely from the bundle of the Router tests.
ZoneJS causes the stacks to be unreadable when combined with the massive
rxjs stack in the router transition.
PR Close#61078
Paul Gschwendtner