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describe("concat",function(){var taos,nickses,bill,anne,clifford,louise;beforeEach(function(){taos=[bill=new Person("Bill",93,"M"),anne=new Person("Anne",90,"F")];nickses=[clifford=new Person("Clifford",Infinity,"M"),louise=new Person("Louise",Infinity,"F")]});ensureLaziness(function(){Lazy(people).concat(taos,nickses)});it("returns the specified elements after the end of the collection",function(){var family=Lazy(people).concat(taos,nickses).toArray();expect(family).toEqual([david,mary,lauren,adam,daniel,happy,bill,anne,clifford,louise])});it("passes an index along with each element",function(){expect(Lazy(people).concat(taos,nickses)).toPassToEach(1,[0,1,2,3,4,5,6,7,8,9])});testAllSequenceTypes("supports asynchronous iteration",[1,2],function(sequence){performAsyncSteps({getSequence:function(){return sequence.concat([3,4]).async()},expected:function(){return[1,2,3,4]}})})});
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