4 { "&" } [ "&" html-unescape ] unit-test
5 { "a" } [ "a" html-unescape ] unit-test
6 { "<foo>" } [ "<foo>" html-unescape ] unit-test
7 { "This &that" } [ "This &that" html-unescape ] unit-test
8 { "This &that" } [ "This &that" html-unescape ] unit-test
10 { "&" } [ "&" html-escape ] unit-test
11 { "<foo>" } [ "<foo>" html-escape ] unit-test