mirror of https://github.com/rails/rails
7badc42723
Register a callable to decode rendered content for a given MIME type Each registered decoder will also define a `#rendered.$MIME` helper method, where `$MIME` corresponds to the value of the `mime` argument. === Arguments `mime` - Symbol the MIME Type name for the rendered content `callable` - Callable to decode the String. Accepts the String value as its only argument `block` - Block serves as the decoder when the `callable` is omitted By default, ActionView::TestCase defines a decoder for: * :html - returns an instance of Nokogiri::XML::Node * :json - returns an instance of ActiveSupport::HashWithIndifferentAccess Each pre-registered decoder also defines a corresponding helper: * :html - defines `rendered.html` * :json - defines `rendered.json` === Examples To parse the rendered content into RSS, register a call to `RSS::Parser.parse`: ```ruby register_decoder :rss, -> rendered { RSS::Parser.parse(rendered) } test "renders RSS" do article = Article.create!(title: "Hello, world") render formats: :rss, partial: article assert_equal "Hello, world", rendered.rss.items.last.title end ``` To parse the rendered content into a Capybara::Simple::Node, re-register an `:html` decoder with a call to `Capybara.string`: ```ruby register_decoder :html, -> rendered { Capybara.string(rendered) } test "renders HTML" do article = Article.create!(title: "Hello, world") render partial: article rendered.html.assert_css "h1", text: "Hello, world" end ``` |
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_developer.html.erb | ||
_developer.json.ruby | ||
_developer_with_h1.erb |