blob: 592da4fd8cf79d5bc1b43eb8ba513f052519542a (
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::Lazy#eager" do
it "returns a non-lazy Enumerator converted from the lazy enumerator" do
enum = [1, 2, 3].lazy
enum.class.should == Enumerator::Lazy
enum.eager.class.should == Enumerator
end
it "does not enumerate an enumerator" do
ScratchPad.record []
sequence = [1, 2, 3]
enum_lazy = Enumerator::Lazy.new(sequence) do |yielder, value|
yielder << value
ScratchPad << value
end
ScratchPad.recorded.should == []
enum = enum_lazy.eager
ScratchPad.recorded.should == []
enum.map { |i| i }.should == [1, 2, 3]
ScratchPad.recorded.should == [1, 2, 3]
end
end
|