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# -*- mode:ruby; coding:utf-8 -*-
require 'atig/db/sized_uniq_array'
require 'ostruct'
describe Atig::Db::SizedUniqArray do
def item(id)
item = double "Item-#{id}"
allow(item).to receive(:id).and_return id
item
end
before do
@array = Atig::Db::SizedUniqArray.new 3
@item1 = item 1
@item2 = item 2
@item3 = item 3
@item4 = item 4
@array << @item1
@array << @item2
@array << @item3
end
it "should include items" do
expect(@array.to_a).to eq([ @item1, @item2, @item3 ])
end
it "should rorate array" do
@array << @item4
expect(@array.to_a).to eq([ @item2, @item3, @item4 ])
end
it "should have reverse_each" do
xs = []
@array.reverse_each {|x| xs << x }
expect(xs).to eq([ @item3, @item2, @item1 ])
end
it "should not have duplicate element" do
@array << item(1)
expect(@array.to_a).to eq([ @item1, @item2, @item3 ])
end
it "should be accesible by index" do
expect(@array[0]).to eq(@item1)
expect(@array[1]).to eq(@item2)
expect(@array[2]).to eq(@item3)
end
it "should not change index" do
@array << @item4
expect(@array[0]).to eq(@item4)
expect(@array[1]).to eq(@item2)
expect(@array[2]).to eq(@item3)
end
it "should return index when add element" do
expect(@array << @item4).to eq(0)
expect(@array << @item3).to eq(nil)
end
end
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