Feature: Various utilities for WP-CLI commands

Scenario Outline: Check that `proc_open()` and `proc_close()` aren't disabled for `WP_CLI::launch()`

When I try `{INVOKE_WP_CLI_WITH_PHP_ARGS--ddisable_functions=<func>} --skip-wordpress eval 'WP_CLI::launch( null );'`

Then STDERR should contain:

"""

And STDOUT should be empty

And the return code should be 1

Examples: