require "test/unit"
require "nitro/html"

include N

class TC_HtmlUtils < Test::Unit::TestCase 
	# :nodoc: all

	def test_escape
		assert_equal("&lt;b&gt;test&lt;/b&gt;", HtmlUtils::escape("<b>test</b>"))
		assert_equal("&lt;p&gt;test", HtmlUtils::escape("<p>test"))
		assert_equal("", HtmlUtils::escape(""))
		assert_equal(nil, HtmlUtils::escape(nil))
	end

	def test_expand_urls
		s = "visit http://www.navel.gr"
		r = "visit <a href='http://www.navel.gr'>http://www.navel.gr</a>"
		assert_equal(r, HtmlUtils::expand_urls(s))

		s = "visit www.navel.gr"
		r = "visit <a href='http://www.navel.gr'>http://www.navel.gr</a>"
		assert_equal(r, HtmlUtils::expand_urls(s))

		assert_equal(nil, HtmlUtils::expand_urls(nil))

		s = "visit: www.navel.gr"
		r = "visit: <a href='http://www.navel.gr'>http://www.navel.gr</a>"
		assert_equal(r, HtmlUtils::expand_urls(s))
	end

	def test_only_safe_tags
		s = "<table>lala</table>"
		r = "&lt;table&gt;lala&lt;/table&gt;"
		assert_equal(r, HtmlUtils::only_safe_tags(s))

		# bug: img is NOT A SAFE tag, fucks up layout
		s = "<a href='lala'<img src='koko'><table>"
		# lala is quoted because it belongs in an open tag!
		r = "<a href=&#39;lala&#39;>&lt;img src=&#39;koko&#39;&gt;&lt;table&gt;"
		assert_equal(r, HtmlUtils::only_safe_tags(s))

		s = "<a href='lala'><img src='koko'><table>"
		# lala is not quoted because it belongs in a valid tag!
		r = "<a href=&#39;lala&#39;>&lt;img src=&#39;koko&#39;&gt;&lt;table&gt;"
		assert_equal(r, HtmlUtils::only_safe_tags(s))

        s = "<a href='lala'<table<bar<koko"
		# lala is quoted because it belongs in an open tag!
        r = "<a href=&#39;lala&#39;>&lt;table&gt;&lt;bar&gt;&lt;koko"
        assert_equal(r, HtmlUtils::only_safe_tags(s))

        s = "<a href='lala'<foo>text<bar<koko"
		# lala is quoted because it belongs in an open tag!
        r = "<a href=&#39;lala&#39;>&lt;foo&gt;text&lt;bar&gt;&lt;koko"
        assert_equal(r, HtmlUtils::only_safe_tags(s))

		# bug: open ' quotes fuckup the html
        s = "<tr><td><a href='koko</td></tr>"
        r = "&lt;tr&gt;&lt;td&gt;<a href=&#39;koko>&lt;/td&gt;&lt;/tr&gt;"
        assert_equal(r, HtmlUtils::only_safe_tags(s))

		# open quotes on valid tag
        s = "<a href='koko>kokok</a>"
        r = "<a href=&#39;koko>kokok</a>"
        assert_equal(r, HtmlUtils::only_safe_tags(s))

		assert_equal(nil, HtmlUtils::only_safe_tags(nil))
	end

	def test_convert_newlines
		# bug:

		assert_equal(nil, HtmlUtils::convert_newlines(nil))
		assert_equal(nil, HtmlUtils::convert_newlines(""))
	end

end