blob: 3e9ed8b015017e0701a78c8b38bf5e876ccc6c7a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
require_relative '../../spec_helper'
describe "Enumerator#next" do
before :each do
@enum = 1.upto(3)
end
it "returns the next element of the enumeration" do
@enum.next.should == 1
@enum.next.should == 2
@enum.next.should == 3
end
it "raises a StopIteration exception at the end of the stream" do
3.times { @enum.next }
-> { @enum.next }.should raise_error(StopIteration)
end
it "cannot be called again until the enumerator is rewound" do
3.times { @enum.next }
-> { @enum.next }.should raise_error(StopIteration)
-> { @enum.next }.should raise_error(StopIteration)
-> { @enum.next }.should raise_error(StopIteration)
@enum.rewind
@enum.next.should == 1
end
end
|