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# frozen_string_literal: true
require_relative 'test_helper'
# Test cases for the CssParser's loading functions.
class CssParserLoadingTests < Minitest::Test
include CssParser
include WEBrick
def setup
# from http://nullref.se/blog/2006/5/17/testing-with-webrick
@cp = Parser.new
@uri_base = 'http://localhost:12000'
@www_root = File.expand_path('fixtures', __dir__)
@server_thread = Thread.new do
s = WEBrick::HTTPServer.new(Port: 12_000, DocumentRoot: @www_root, Logger: Log.new(nil, BasicLog::FATAL), AccessLog: [])
s.mount_proc('/redirect301') do |_request, response|
response['Location'] = '/simple.css'
raise WEBrick::HTTPStatus::MovedPermanently
end
s.mount_proc('/redirect302') do |_request, response|
response['Location'] = '/simple.css'
raise WEBrick::HTTPStatus::TemporaryRedirect
end
@port = s.config[:Port]
begin
s.start
ensure
s.shutdown
end
end
sleep 1 # ensure the server has time to load
end
def teardown
@server_thread.kill
@server_thread.join(5)
@server_thread = nil
end
def test_loading_301_redirect
@cp.load_uri!("#{@uri_base}/redirect301")
assert_equal 'margin: 0px;', @cp.find_by_selector('p').join(' ')
end
def test_loading_302_redirect
@cp.load_uri!("#{@uri_base}/redirect302")
assert_equal 'margin: 0px;', @cp.find_by_selector('p').join(' ')
end
def test_loading_a_local_file
file_name = File.expand_path('fixtures/simple.css', __dir__)
@cp.load_file!(file_name)
assert_equal 'margin: 0px;', @cp.find_by_selector('p').join(' ')
end
def test_loading_a_local_file_with_scheme
file_name = "file://#{__dir__}/fixtures/simple.css"
@cp.load_uri!(file_name)
assert_equal 'margin: 0px;', @cp.find_by_selector('p').join(' ')
end
def test_loading_a_remote_file
@cp.load_uri!("#{@uri_base}/simple.css")
assert_equal 'margin: 0px;', @cp.find_by_selector('p').join(' ')
end
# http://github.com/premailer/css_parser/issues#issue/4
def test_loading_a_remote_file_over_ssl
@cp.load_uri!("https://dialect.ca/inc/screen.css")
assert_includes(@cp.find_by_selector('body').join(' '), "margin: 0;")
end
def test_loading_a_string
@cp.load_string!("p{margin:0px}")
assert_equal 'margin: 0px;', @cp.find_by_selector('p').join(' ')
end
def test_following_at_import_rules_local
base_dir = File.expand_path('fixtures', __dir__)
@cp.load_file!('import1.css', base_dir: base_dir)
# from '/import1.css'
assert_equal 'color: lime;', @cp.find_by_selector('div').join(' ')
# from '/subdir/import2.css'
assert_equal 'text-decoration: none;', @cp.find_by_selector('a').join(' ')
# from '/subdir/../simple.css'
assert_equal 'margin: 0px;', @cp.find_by_selector('p').join(' ')
end
def test_following_at_import_rules_remote
@cp.load_uri!("#{@uri_base}/import1.css")
# from '/import1.css'
assert_equal 'color: lime;', @cp.find_by_selector('div').join(' ')
# from '/subdir/import2.css'
assert_equal 'text-decoration: none;', @cp.find_by_selector('a').join(' ')
# from '/subdir/../simple.css'
assert_equal 'margin: 0px;', @cp.find_by_selector('p').join(' ')
end
def test_imports_disabled
cp = Parser.new(import: false)
cp.load_uri!("#{@uri_base}/import1.css")
# from '/import1.css'
assert_equal 'color: lime;', cp.find_by_selector('div').join(' ')
# from '/subdir/import2.css'
assert_equal '', cp.find_by_selector('a').join(' ')
# from '/subdir/../simple.css'
assert_equal '', cp.find_by_selector('p').join(' ')
end
def test_following_remote_import_rules
css_block = '@import "http://example.com/css";'
assert_raises CssParser::RemoteFileError do
@cp.add_block!(css_block, base_uri: "#{@uri_base}/subdir/")
end
end
def test_following_badly_escaped_import_rules
css_block = '@import "http://example.com/css?family=Droid+Sans:regular,bold|Droid+Serif:regular,italic,bold,bolditalic&subset=latin";'
assert_raises CssParser::RemoteFileError do
@cp.add_block!(css_block, base_uri: "#{@uri_base}/subdir/")
end
end
def test_loading_malformed_content_strings
file_name = File.expand_path('fixtures/import-malformed.css', __dir__)
@cp.load_file!(file_name)
@cp.each_selector do |_sel, dec, _spec|
assert_nil dec =~ /wellformed/
end
end
def test_loading_malformed_css_brackets
file_name = File.expand_path('fixtures/import-malformed.css', __dir__)
@cp.load_file!(file_name)
selector_count = 0
@cp.each_selector do |_sel, _dec, _spec|
selector_count += 1
end
assert_equal 8, selector_count
end
def test_following_at_import_rules_from_add_block
css_block = '@import "../simple.css";'
@cp.add_block!(css_block, base_uri: "#{@uri_base}/subdir/")
# from 'simple.css'
assert_equal 'margin: 0px;', @cp.find_by_selector('p').join(' ')
end
def test_importing_with_media_types
@cp.load_uri!("#{@uri_base}/import-with-media-types.css")
# from simple.css with :screen media type
assert_equal 'margin: 0px;', @cp.find_by_selector('p', :screen).join(' ')
assert_equal '', @cp.find_by_selector('p', :tty).join(' ')
end
def test_local_circular_reference_exception
assert_raises CircularReferenceError do
@cp.load_file!(File.expand_path('fixtures/import-circular-reference.css', __dir__))
end
end
def test_remote_circular_reference_exception
assert_raises CircularReferenceError do
@cp.load_uri!("#{@uri_base}/import-circular-reference.css")
end
end
def test_suppressing_circular_reference_exceptions
cp_without_exceptions = Parser.new(io_exceptions: false)
cp_without_exceptions.load_uri!("#{@uri_base}/import-circular-reference.css")
end
def test_toggling_not_found_exceptions
cp_with_exceptions = Parser.new(io_exceptions: true)
err = assert_raises RemoteFileError do
cp_with_exceptions.load_uri!("#{@uri_base}/no-exist.xyz")
end
assert_includes err.message, "#{@uri_base}/no-exist.xyz"
cp_without_exceptions = Parser.new(io_exceptions: false)
cp_without_exceptions.load_uri!("#{@uri_base}/no-exist.xyz")
end
end if false # disable this entire test class
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