pry--pry/test/test_history_array.rb

66 lines
1.5 KiB
Ruby

require 'helper'
describe Pry::HistoryArray do
before do
@array = Pry::HistoryArray.new 10
end
it 'should have a maximum size specifed at creation time' do
@array.max_size.should == 10
end
it 'should be able to be added objects to' do
@array << 1 << 2 << 3
@array.size.should == 3
@array.to_a.should == [1, 2, 3]
end
it 'should be able to access single elements' do
@array << 1 << 2 << 3
@array[2].should == 3
end
it 'should be able to access negative indices' do
@array << 1 << 2 << 3
@array[-1].should == 3
end
it 'should be able to access ranges' do
@array << 1 << 2 << 3 << 4
@array[1..2].should == [2, 3]
end
it 'should be able to access ranges starting from a negative index' do
@array << 1 << 2 << 3 << 4
@array[-2..3].should == [3, 4]
end
it 'should be able to access ranges ending at a negative index' do
@array << 1 << 2 << 3 << 4
@array[2..-1].should == [3, 4]
end
it 'should be able to access ranges using only negative indices' do
@array << 1 << 2 << 3 << 4
@array[-2..-1].should == [3, 4]
end
it 'should be able to use range where end is excluded' do
@array << 1 << 2 << 3 << 4
@array[-2...-1].should == [3]
end
it 'should be able to access slices using a size' do
@array << 1 << 2 << 3 << 4
@array[-3, 2].should == [2, 3]
end
it 'should remove older entries' do
11.times { |n| @array << n }
@array[0].should == nil
@array[1].should == 1
@array[10].should == 10
end
end