This package that implements the wp check-content command for WP-CLI.
It returns information about the content on the current wordpress installation and environment.
By default (no parameters) it returns all information formatted and colourized.
See wp-cli help content-check for full documentation.
More 'checks' can be added dynamically by adding your own custom check ie MyCustomCheck to the folder code/checks/ and they will be included automatically in the test.
If the check requires that the HTML be valid first you can implement like;
class MyCustomCheck extends InvalidHTML
{
Otherwise you should use;
class MyCustomCheck implements checks
{