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401b64c4e8
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62656 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
39 lines
745 B
Ruby
39 lines
745 B
Ruby
require_relative '../../spec_helper'
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describe :enum_rewind, shared: true do
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before :each do
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@enum = 1.upto(3)
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end
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it "resets the enumerator to its initial state" do
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@enum.next.should == 1
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@enum.next.should == 2
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@enum.rewind
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@enum.next.should == 1
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end
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it "returns self" do
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@enum.rewind.should == @enum
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end
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it "has no effect on a new enumerator" do
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@enum.rewind
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@enum.next.should == 1
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end
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it "has no effect if called multiple, consecutive times" do
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@enum.next.should == 1
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@enum.rewind
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@enum.rewind
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@enum.next.should == 1
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end
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it "works with peek to reset the position" do
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@enum.next
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@enum.next
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@enum.rewind
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@enum.next
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@enum.peek.should == 2
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end
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end
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