blob: e846f63c49201cf77b9c287ecf46643204ab6913 (
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
28
29
30
31
32
33
34
35
36
37
38
|
require_relative '../../spec_helper'
require_relative '../../shared/enumerator/rewind'
require_relative 'fixtures/common'
describe "Enumerator#rewind" do
it_behaves_like :enum_rewind, :rewind
it "calls the enclosed object's rewind method if one exists" do
obj = mock('rewinder')
enum = obj.to_enum
obj.should_receive(:each).at_most(1)
obj.should_receive(:rewind)
enum.rewind
end
it "does nothing if the object doesn't have a #rewind method" do
obj = mock('rewinder')
enum = obj.to_enum
obj.should_receive(:each).at_most(1)
lambda { enum.rewind.should == enum }.should_not raise_error
end
end
describe "Enumerator#rewind" do
before :each do
ScratchPad.record []
@enum = EnumeratorSpecs::Feed.new.to_enum(:each)
end
it "clears a pending #feed value" do
@enum.next
@enum.feed :a
@enum.rewind
@enum.next
@enum.next
ScratchPad.recorded.should == [nil]
end
end
|