Spec for Bitbucket::Paginator

spec/lib/bitbucket/paginator_spec.rb

+require 'spec_helper'
+
+describe Bitbucket::Paginator do
+  let(:last_page) { double(:page, next?: false, items: ['item_2']) }
+  let(:first_page) { double(:page, next?: true, next: last_page, items: ['item_1']) }
+
+  describe 'items' do
+    it 'return items and raises StopIteration in the end' do
+      paginator = described_class.new(nil, nil, nil)
+
+      allow(paginator).to receive(:fetch_next_page).and_return(first_page)
+      expect(paginator.items).to match(['item_1'])
+
+      allow(paginator).to receive(:fetch_next_page).and_return(last_page)
+      expect(paginator.items).to match(['item_2'])
+
+      allow(paginator).to receive(:fetch_next_page).and_return(nil)
+      expect{ paginator.items }.to raise_error(StopIteration)
+    end
+  end
+end