Automatically diff actual and expected output in deftest-html

[anonymous]

Currently when unit tests that are defined with deftest-html macro fail, it's very hard to tell the difference between actual and expected HTML, especially if the output is long. It's usually necessary to invoke ediff-buffers in Emacs (or some other diff utility).

Automatically diffing actual and expected output and presenting the diff as a result of a failed test would significantly ease debugging. This could be done with CL-HTML-DIFF or CL-DIFFLIB library.

[Slava Akhmechet]

Moving non-essential improvement items to 0.2 milestone.

[Slava Akhmechet]

Suggested by Chaitanya:

Maybe the HTML strings should be converted to LHTML [1], and then we create an equality function like lhtml-equal-p to check for equality rather than simply equal?

1. Franz's HTML parser -

​http://opensource.franz.com/xmlutils/xmlutils-dist/phtml.htm

[Slava Akhmechet]

Not relevant for this release. Moving to next one.