jasmine-marbles next only emit first value

I've got some marbles like so:

import { cold, getTestScheduler } from 'jasmine-marbles'
const marbles$ = cold('--x--y|', {x: false, y: true})


When I call:

getTestScheduler().flush()


Both x and y are emitted. However, I want to do this:

it('my test', () => {
// setup spies and other logic here
const marbles$ = cold('--x--y|', {x: false, y: true})
expect(foo).toBe(bar1)
// EMIT x FROM marbles$ here
expect(foo).toBe(bar2)
// EMIT y FROM marbles$ here
expect(foo).toBe(bar3)
})


Is this possible? If so how do I achieve this?

What I am looking for is something like getTestScheduler().next() similar to how you would call next on an RxJs Subject. Maybe it would emit the next item in the marbles or it would emit nothing if the next item was '-'. I'm not exactly sure how it would work.

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