29 lines
1.1 KiB
Lua
29 lines
1.1 KiB
Lua
describe('skipWhile', function()
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it('produces an error if its parent errors', function()
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local observable = Rx.Observable.of(''):map(function(x) return x() end)
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expect(observable).to.produce.error()
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expect(observable:skipWhile(function() end)).to.produce.error()
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end)
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it('uses the identity function if no predicate is specified', function()
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local observable = Rx.Observable.fromTable({true, true, false}):skipWhile()
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expect(observable).to.produce(false)
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end)
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it('produces values once the predicate returns false', function()
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local function isEven(x) return x % 2 == 0 end
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local observable = Rx.Observable.fromTable({2, 3, 4}, ipairs):skipWhile(isEven)
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expect(observable).to.produce(3, 4)
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end)
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it('produces no values if the predicate never returns false', function()
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local function isEven(x) return x % 2 == 0 end
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local observable = Rx.Observable.fromTable({2, 4, 6}):skipWhile(isEven)
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expect(observable).to.produce.nothing()
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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):skipWhile(error)).to.produce.error()
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end)
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end)
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