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ruby--ruby/spec/ruby/library/readline/history/delete_at_spec.rb
eregon 1d15d5f080 Move spec/rubyspec to spec/ruby for consistency
* Other ruby implementations use the spec/ruby directory.
  [Misc #13792] [ruby-core:82287]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2017-09-20 20:18:52 +00:00

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Ruby

require File.expand_path('../../spec_helper', __FILE__)
with_feature :readline do
describe "Readline::HISTORY.delete_at" do
it "deletes and returns the history entry at the specified index" do
Readline::HISTORY.push("1", "2", "3")
Readline::HISTORY.delete_at(1).should == "2"
Readline::HISTORY.size.should == 2
Readline::HISTORY.delete_at(1).should == "3"
Readline::HISTORY.size.should == 1
Readline::HISTORY.delete_at(0).should == "1"
Readline::HISTORY.size.should == 0
Readline::HISTORY.push("1", "2", "3", "4")
Readline::HISTORY.delete_at(-2).should == "3"
Readline::HISTORY.size.should == 3
Readline::HISTORY.delete_at(-2).should == "2"
Readline::HISTORY.size.should == 2
Readline::HISTORY.delete_at(0).should == "1"
Readline::HISTORY.size.should == 1
Readline::HISTORY.delete_at(0).should == "4"
Readline::HISTORY.size.should == 0
end
it "raises an IndexError when the given index is greater than the history size" do
lambda { Readline::HISTORY.delete_at(10) }.should raise_error(IndexError)
lambda { Readline::HISTORY.delete_at(-10) }.should raise_error(IndexError)
end
it "taints the returned strings" do
Readline::HISTORY.push("1", "2", "3")
Readline::HISTORY.delete_at(0).tainted?.should be_true
Readline::HISTORY.delete_at(0).tainted?.should be_true
Readline::HISTORY.delete_at(0).tainted?.should be_true
end
end
end