kaminari--kaminari/spec/helpers/helpers_spec.rb

require File.expand_path('../spec_helper', File.dirname(__FILE__))
include Kaminari::Helpers

describe 'Kaminari::Helpers::PaginationRenderer' do
  let :template do
    stub(r = Object.new) do
      render.with_any_args
      params { {} }
      url_for {|h| "/foo?page=#{h[:page]}"}
    end
    r
  end

  describe '#params' do
    subject { PaginationRenderer.new(template, :params => {:controller => 'foo', :action => 'bar'}) }
    its(:params) { should == {:controller => 'foo', :action => 'bar'} }
  end

  describe '#tagify_links' do
    def tags_with(options)
      PaginationRenderer.new(template, options).tagify_links
    end

    context '1 page in total' do
      subject { tags_with :num_pages => 1, :current_page => 1 }
      it { should have(0).tags }
    end

    context '10 pages in total' do
      context 'first page' do
        subject { tags_with :num_pages => 10, :current_page => 1 }
        it { should_not contain_tag PrevLink }
        it { should contain_tag PrevSpan }
        it { should contain_tag CurrentPage }
        it { should_not contain_tag FirstPageLink }
        it { should contain_tag LastPageLink }
        it { should contain_tag PageLink }
        it { should contain_tag NextLink }
        it { should_not contain_tag NextSpan }
        it { should contain_tag TruncatedSpan }
      end

      context 'second page' do
        subject { tags_with :num_pages => 10, :current_page => 2 }
        it { should contain_tag PrevLink }
        it { should_not contain_tag PrevSpan }
        it { should contain_tag CurrentPage }
        it { should contain_tag FirstPageLink }
        it { should contain_tag LastPageLink }
        it { should contain_tag PageLink }
        it { should contain_tag NextLink }
        it { should_not contain_tag NextSpan }
        it { should contain_tag TruncatedSpan }
      end

      context 'third page' do
        subject { tags_with :num_pages => 10, :current_page => 3 }
        it { should contain_tag PrevLink }
        it { should_not contain_tag PrevSpan }
        it { should contain_tag CurrentPage }
        it { should contain_tag FirstPageLink }
        it { should contain_tag LastPageLink }
        it { should contain_tag PageLink }
        it { should contain_tag NextLink }
        it { should_not contain_tag NextSpan }
        it { should contain_tag TruncatedSpan }
      end

      context 'fourth page(no truncation)' do
        subject { tags_with :num_pages => 10, :current_page => 4 }
        it { should contain_tag PrevLink }
        it { should_not contain_tag PrevSpan }
        it { should contain_tag CurrentPage }
        it { should contain_tag FirstPageLink }
        it { should contain_tag LastPageLink }
        it { should contain_tag PageLink }
        it { should contain_tag NextLink }
        it { should_not contain_tag NextSpan }
        it { should_not contain_tag TruncatedSpan }
      end

      context 'seventh page(no truncation)' do
        subject { tags_with :num_pages => 10, :current_page => 7 }
        it { should contain_tag PrevLink }
        it { should_not contain_tag PrevSpan }
        it { should contain_tag CurrentPage }
        it { should contain_tag FirstPageLink }
        it { should contain_tag LastPageLink }
        it { should contain_tag PageLink }
        it { should contain_tag NextLink }
        it { should_not contain_tag NextSpan }
        it { should_not contain_tag TruncatedSpan }
      end

      context 'eighth page' do
        subject { tags_with :num_pages => 10, :current_page => 8 }
        it { should contain_tag PrevLink }
        it { should_not contain_tag PrevSpan }
        it { should contain_tag CurrentPage }
        it { should contain_tag FirstPageLink }
        it { should contain_tag LastPageLink }
        it { should contain_tag PageLink }
        it { should contain_tag NextLink }
        it { should_not contain_tag NextSpan }
        it { should contain_tag TruncatedSpan }
      end

      context 'last page' do
        subject { tags_with :num_pages => 10, :current_page => 10 }
        it { should contain_tag PrevLink }
        it { should_not contain_tag PrevSpan }
        it { should contain_tag CurrentPage }
        it { should contain_tag FirstPageLink }
        it { should_not contain_tag LastPageLink }
        it { should contain_tag PageLink }
        it { should_not contain_tag NextLink }
        it { should contain_tag NextSpan }
        it { should contain_tag TruncatedSpan }
      end
    end
  end
end