49 lines
1.8 KiB
Lua
49 lines
1.8 KiB
Lua
describe('skipUntil', function()
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it('produces an error if its parent errors', function()
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local observable = Rx.Observable.fromValue(''):map(function(x) return x() end)
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expect(observable.subscribe).to.fail()
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expect(observable:skipUntil(1).subscribe).to.fail()
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end)
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it('fails if the first argument is not an Observable', function()
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local observable = Rx.Observable.fromValue(3)
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expect(observable:skipUntil(nil)).to.fail()
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expect(observable:skipUntil(0)).to.fail()
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expect(observable:skipUntil({})).to.fail()
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end)
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it('produces no values if the specified observable does not produce any values', function()
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local trigger = Rx.Observable.create(function() end)
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local observable = Rx.Observable.fromTable({2, 3, 4}):skipUntil(trigger)
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local onNext, onError, onCompleted = observableSpy(observable)
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expect(#onNext).to.equal(0)
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expect(#onError).to.equal(0)
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expect(#onCompleted).to.equal(0)
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end)
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it('produces values after the specified observable produces a value', function()
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local onNext = spy()
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local trigger = Rx.Subject.create()
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local subject = Rx.Subject.create()
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subject:skipUntil(trigger):subscribe(Rx.Observer.create(onNext))
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subject:onNext('a')
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subject:onNext('b')
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trigger:onNext('a')
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subject:onNext('c')
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subject:onNext('d')
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subject:onCompleted()
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expect(onNext).to.equal({{'c'}, {'d'}})
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end)
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it('produces all values if the specified observable fires immediately', function()
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local onNext = spy()
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local subject = Rx.Subject.create()
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subject:skipUntil(Rx.Observable.fromValue(1)):subscribe(Rx.Observer.create(onNext))
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subject:onNext(1)
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subject:onNext(2)
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subject:onNext(3)
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subject:onCompleted()
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expect(onNext).to.equal({{1}, {2}, {3}})
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end)
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end)
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