Full test coverage for WP CLI [0.17.2]

[mikeschinkel]

We need to focus on moving rapidly to to full test coverage before we focus much on functionality. 0.17.0 has bugs that would have been caught had we simple had reasonable test coverage. It is not viable to go out promoting a new release when so many critical aspects are broken.

SO, I am going to start adding individual tickets for test coverage.

To write tests for WP CLI will actually be a significant undertaking because wp has 38 subcommands each of which has numerous options and many require setting of the database first.