describe :erb_util_html_escape, :shared => true do
  ruby_version_is ""..."2.0" do
    it "escape '& < > \"' to '&amp; &lt; &gt; &quot;" do
      input = '& < > "'
      expected = '&amp; &lt; &gt; &quot;'
      ERB::Util.__send__(@method, input).should == expected
    end

    it "not escape characters except '& < > \"'" do
      input = (0x20..0x7E).to_a.collect {|ch| ch.chr}.join('')
      expected = input.gsub(/&/,'&amp;').gsub(/</,'&lt;').gsub(/>/,'&gt;').gsub(/"/,'&quot;')
      ERB::Util.__send__(@method, input).should == expected
    end
  end

  ruby_version_is "2.0" do
    it "escape (& < > \" ') to (&amp; &lt; &gt; &quot; &#39;)" do
      input = '& < > " \''
      expected = '&amp; &lt; &gt; &quot; &#39;'
      ERB::Util.__send__(@method, input).should == expected
    end

    it "not escape characters except (& < > \" ')" do
      input = (0x20..0x7E).to_a.collect {|ch| ch.chr}.join('')
      expected = input.
        gsub(/&/,'&amp;').
        gsub(/</,'&lt;').
        gsub(/>/,'&gt;').
        gsub(/'/,'&#39;').
        gsub(/"/,'&quot;')
      ERB::Util.__send__(@method, input).should == expected
    end
  end

  it "return empty string when argument is nil" do
    input = nil
    expected = ''
    ERB::Util.__send__(@method, input).should == expected
  end

  it "returns string when argument is number" do
    input = 123
    expected = '123'
    ERB::Util.__send__(@method, input).should == expected
    input = 3.14159
    expected = '3.14159'
    ERB::Util.__send__(@method, input).should == expected
  end

  it "returns string when argument is boolean" do
    input = true
    expected = 'true'
    ERB::Util.__send__(@method, input).should == expected
    input = false
    expected = 'false'
    ERB::Util.__send__(@method, input).should == expected
  end
end
