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require_relative '../spec_helper'
with_feature :readline do
describe "Readline::HISTORY.shift" do
it "returns nil when the history is empty" do
Readline::HISTORY.shift.should be_nil
end
it "returns and removes the first item from the history" do
Readline::HISTORY.push("1", "2", "3")
Readline::HISTORY.size.should == 3
Readline::HISTORY.shift.should == "1"
Readline::HISTORY.size.should == 2
Readline::HISTORY.shift.should == "2"
Readline::HISTORY.size.should == 1
Readline::HISTORY.shift.should == "3"
Readline::HISTORY.size.should == 0
end
ruby_version_is ''...'2.7' do
it "taints the returned strings" do
Readline::HISTORY.push("1", "2", "3")
Readline::HISTORY.shift.tainted?.should be_true
Readline::HISTORY.shift.tainted?.should be_true
Readline::HISTORY.shift.tainted?.should be_true
end
end
end
end
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