Hello world!
" subject(:document) { described_class.new sample_html } it "is initialized with HTML" do doc = Document.new "" expect(doc.html).to eq("") end it "has an accessor for URL options" do document.url_options = {host: "foo.bar"} expect(document.url_options).to eq({host: "foo.bar"}) end it "has a setting for keeping uninlinable styles" do expect(document.keep_uninlinable_css).to be true document.keep_uninlinable_css = false expect(document.keep_uninlinable_css).to be false end it "has a ProviderList for normal and external providers" do expect(document.asset_providers).to be_instance_of(ProviderList) expect(document.external_asset_providers).to be_instance_of(ProviderList) end it "defaults to having just a FilesystemProvider in the normal provider list" do expect(document).to have(1).asset_providers expect(document).to have(0).external_asset_providers provider = document.asset_providers.first expect(provider).to be_instance_of(FilesystemProvider) end it "allows changes to the normal asset providers" do other_provider = double "Other proider" old_list = document.asset_providers document.asset_providers = [other_provider] expect(document.asset_providers).to be_instance_of(ProviderList) expect(document.asset_providers.each.to_a).to eq([other_provider]) document.asset_providers = old_list expect(document.asset_providers).to eq(old_list) end it "allows changes to the external asset providers" do other_provider = double "Other proider" old_list = document.external_asset_providers document.external_asset_providers = [other_provider] expect(document.external_asset_providers).to be_instance_of(ProviderList) expect(document.external_asset_providers.each.to_a).to eq([other_provider]) document.external_asset_providers = old_list expect(document.external_asset_providers).to eq(old_list) end it "can store callbacks for inlining" do callable = double "Callable" document.before_transformation = callable document.after_transformation = callable expect(document.before_transformation).to eq(callable) expect(document.after_transformation).to eq(callable) end describe "transforming" do it "runs the before and after callbacks" do document = Document.new "" before = ->{} after = ->{} document.before_transformation = before document.after_transformation = after expect(before).to receive(:call).with(instance_of(Nokogiri::HTML::Document), document).ordered expect(Inliner).to receive(:new).ordered.and_return double.as_null_object expect(after).to receive(:call).with(instance_of(Nokogiri::HTML::Document), document).ordered document.transform end # TODO: Remove on next major version. it "works on callables that don't expect more than one argument" do document = Document.new "" document.before_transformation = ->(first) { } document.after_transformation = ->(first = nil) { } expect { document.transform }.to_not raise_error # It still supplies the second argument, if possible. document.after_transformation = ->(first, second = nil) { raise "Oops" unless second } expect { document.transform }.to_not raise_error end end end describe Document, "(integration)" do it "can transform the document" do document = Document.new <<-HTMLHello, world!
HTML document.add_css "p { color: green; }" result = Nokogiri::HTML.parse document.transform expect(result).to have_selector('html > head > title') expect(result.at_css('title').text).to eq("Greetings") expect(result).to have_selector('html > body > p') paragraph = result.at_css('p') expect(paragraph.text).to eq("Hello, world!") expect(paragraph.to_xml).to eq('Hello, world!
') end it "extracts styles from the HTML" do document = Document.new <<-HTMLHello, world!
HTML document.asset_providers = TestProvider.new({ "/sample.css" => "p { color: red; text-align: right; }", }) document.add_css "p { color: green; text-size: 2em; }" result = Nokogiri::HTML.parse document.transform expect(result).to have_styling([ %w[color red], %w[text-align right], %w[color green], %w[text-size 2em] ]).at_selector("p") end end end