20 lines
693 B
Lua
20 lines
693 B
Lua
describe('count', function()
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it('passes through errors', function()
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expect(Rx.Observable.throw():count()).to.produce.error()
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end)
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it('produces a single value representing the number of elements produced by the source', function()
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local observable = Rx.Observable.fromRange(5):count()
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expect(observable).to.produce(5)
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end)
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it('uses the predicate to filter for values if it is specified', function()
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local observable = Rx.Observable.fromRange(5):count(function(x) return x > 3 end)
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expect(observable).to.produce(2)
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end)
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it('calls onError if the predicate errors', function()
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expect(Rx.Observable.fromRange(3):count(error)).to.produce.error()
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end)
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end)
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