discourse/spec/components/email/styles_spec.rb

98 lines
2.7 KiB
Ruby

require 'spec_helper'
require 'email'
describe Email::Styles do
def basic_fragment(html)
styler = Email::Styles.new(html)
styler.format_basic
Nokogiri::HTML.fragment(styler.to_html)
end
def html_fragment(html)
styler = Email::Styles.new(html)
styler.format_basic
styler.format_html
Nokogiri::HTML.fragment(styler.to_html)
end
context "basic formatter" do
it "works with an empty string" do
style = Email::Styles.new("")
style.format_basic
expect(style.to_html).to be_blank
end
it "adds a max-width to images" do
frag = basic_fragment("<img src='gigantic.jpg'>")
expect(frag.at("img")["style"]).to match("max-width")
end
it "adds a width and height to images with an emoji path" do
frag = basic_fragment("<img src='/assets/emoji/fish.png'>")
expect(frag.at("img")["width"]).to eq("20")
expect(frag.at("img")["height"]).to eq("20")
end
it "converts relative paths to absolute paths" do
frag = basic_fragment("<img src='/some-image.png'>")
expect(frag.at("img")["src"]).to eq("#{Discourse.base_url}/some-image.png")
end
it "it does not change protocol relative paths" do
frag = basic_fragment("<img src='//www.discourse.com/some-image.gif'>")
expect(frag.at("img")["src"]).to eq("//www.discourse.com/some-image.gif")
end
it "strips classes and ids" do
frag = basic_fragment("<div class='foo' id='bar'><div class='foo' id='bar'></div></div>")
expect(frag.to_html).to eq("<div><div></div></div>")
end
end
context "html template formatter" do
it "works with an empty string" do
style = Email::Styles.new("")
style.format_html
expect(style.to_html).to be_blank
end
it "attaches a style to h3 tags" do
frag = html_fragment("<h3>hello</h3>")
expect(frag.at('h3')['style']).to be_present
end
it "attaches a style to hr tags" do
frag = html_fragment("hello<hr>")
expect(frag.at('hr')['style']).to be_present
end
it "attaches a style to a tags" do
frag = html_fragment("<a href='#'>wat</a>")
expect(frag.at('a')['style']).to be_present
end
it "attaches a style to a tags" do
frag = html_fragment("<a href='#'>wat</a>")
expect(frag.at('a')['style']).to be_present
end
it "attaches a style to ul and li tags" do
frag = html_fragment("<ul><li>hello</li></ul>")
expect(frag.at('ul')['style']).to be_present
expect(frag.at('li')['style']).to be_present
end
it "removes pre tags but keeps their contents" do
style = Email::Styles.new("<pre>hello</pre>")
style.format_basic
style.format_html
expect(style.to_html).to eq("hello")
end
end
end