require "test_helper"

class TestCssCacheBuster < Test::Unit::TestCase
  def setup
    Juicer::Test::FileSetup.new.create
    @buster = Juicer::CssCacheBuster.new
  end

  def teardown
    Juicer::Test::FileSetup.new.delete
    Juicer::Test::FileSetup.new.create
  end

  def test_find_urls
    urls = @buster.urls(path("css/test.css"))
    assert_equal 3, urls.length
    assert_equal "../a1.css../images/1.png2.gif", urls.collect { |a| a.path }.sort.join.gsub(path("/"), "")
  end

  def test_image_references_should_be_updated
    file = path("css/test.css")
    buster = Juicer::CssCacheBuster.new
    buster.save file

    File.read(file).scan(/url\(([^\)]*)\)/m).each do |path|
      assert_match(/[^\?]*\?jcb=\d+/, path.first)
    end
  end

  def test_absolute_path_without_document_root_should_fail
    file = path("css/test2.css")
    buster = Juicer::CssCacheBuster.new

    assert_raise FileNotFoundError do
      buster.save file
    end
  end

  def test_absolute_path_should_be_resolved_when_document_root_known
    file = path("css/test.css")
    buster = Juicer::CssCacheBuster.new :document_root => path("")

    assert_nothing_raised do
      buster.save file
    end

    File.read(file).scan(/url\(([^\)]*)\)/m).each do |path|
      assert_match(/[^\?]*\?jcb=\d+/, path.first)
    end
  end

  def test_urls_should_only_have_mtime_appended_once
    File.open(path("a2.css"), "w") { |f| f.puts "" }
    file = path("path_test2.css")
    output = path("path_test3.css")
    buster = Juicer::CssCacheBuster.new :document_root => path("")
    buster.save file, output

    buster.urls(output).each { |url| assert url !~ /(jcb=\d+).*(jcb=\d+)/, url }
  end

  def test_type_hard_should_produce_hard_buster_urls
    File.open(path("a2.css"), "w") { |f| f.puts "" }
    file = path("path_test2.css")
    output = path("path_test3.css")
    buster = Juicer::CssCacheBuster.new :document_root => path(""), :type => :hard
    buster.save file, output

    buster.urls(output).each { |asset| assert_match /-jcb\d+\.[a-z]{3}$/, asset.path }
  end
end