RxLua/tests/buffer.lua
2016-10-15 10:31:23 -07:00

28 lines
984 B
Lua

describe('buffer', function()
it('produces an error if its parent errors', function()
local observable = Rx.Observable.of(''):map(function(x) return x() end)
expect(observable.subscribe).to.fail()
expect(observable:buffer().subscribe).to.fail()
end)
it('fails if size is not specified', function()
expect(Rx.Observable.fromRange(5):buffer().subscribe).to.fail()
end)
it('produces values wrapped to the specified width', function()
local observable = Rx.Observable.create(function(observer)
observer:onNext(1)
observer:onNext(2, 3)
observer:onNext(4, 5, 6)
observer:onCompleted()
end)
expect(observable).to.produce({{1}, {2, 3}, {4, 5, 6}})
expect(observable:buffer(2)).to.produce({{1, 2}, {3, 4}, {5, 6}})
end)
it('produces a partial buffer if the observable completes', function()
local observable = Rx.Observable.fromRange(5)
expect(observable:buffer(2)).to.produce({{1, 2}, {3, 4}, {5}})
end)
end)