require 'spec_helper' require 'shared_examples/url_rewriter' module Roadie describe UrlRewriter do let(:generator) { double("URL generator") } subject(:rewriter) { UrlRewriter.new(generator) } it_behaves_like "url rewriter" describe "transforming DOM trees" do def dom_document(html); Nokogiri::HTML.parse html; end it "rewrites all a[href]" do expect(generator).to receive(:generate_url).with("some/path").and_return "http://foo.com/" dom = dom_document <<-HTML Some path HTML expect { rewriter.transform_dom dom }.to change { dom.at_css("a")["href"] }.to "http://foo.com/" end it "rewrites relative img[src]" do expect(generator).to receive(:generate_url).with("some/path.jpg").and_return "http://foo.com/image.jpg" dom = dom_document <<-HTML HTML expect { rewriter.transform_dom dom }.to change { dom.at_css("img")["src"] }.to "http://foo.com/image.jpg" end it "rewrites url() directives inside style attributes" do expect(generator).to receive(:generate_url).with("some/path.jpg").and_return "http://foo.com/image.jpg" dom = dom_document <<-HTML
HTML expect { rewriter.transform_dom dom }.to change { dom.at_css("div")["style"] }.to 'background-image: url("http://foo.com/image.jpg");' end it "skips elements with data-roadie-ignore attributes" do allow(generator).to receive(:generate_url).and_return("http://example.com") dom = dom_document <<-HTML Image
HTML rewriter.transform_dom dom expect(generator).not_to have_received(:generate_url) end end describe "transforming css" do it "rewrites all url() directives" do expect(generator).to receive(:generate_url).with("some/path.jpg").and_return "http://foo.com/image.jpg" css = "body { background: top url(some/path.jpg) #eee; }" expect { rewriter.transform_css css }.to change { css }.to "body { background: top url(http://foo.com/image.jpg) #eee; }" end it "correctly identifies URLs with single quotes" do expect(generator).to receive(:generate_url).with("images/foo.png").and_return "x" rewriter.transform_css "url('images/foo.png')" end it "correctly identifies URLs with double quotes" do expect(generator).to receive(:generate_url).with("images/foo.png").and_return "x" rewriter.transform_css 'url("images/foo.png")' end it "correctly identifies URLs with parenthesis inside them" do expect(generator).to receive(:generate_url).with("images/map_(large_(extra)).png").and_return "x" rewriter.transform_css 'url(images/map_(large_(extra)).png)' end end end end