* removed most historicla junk from lib/pry/test/helper.rb
* relocated recalcitrant junk to the local spec/helper.rb (this isn't exposed to 3rd parties)
A few things were missing. I had to add a new method and slightly adjust
ClassCommand#slop method. Without these changes subcommands doesn't work
properly.
Add some unit tests for subcommands.
Signed-off-by: Kyrylo Silin <kyrylosilin@gmail.com>
Create `ClassCommand::Options` class, which ties up sub commands and
default options together.
Let's consider the command `food make --tea`. `food` is a command,
`make` is a sub command and `--tea` is an option of `make` sub command.
We can access `--tea` via `opts[:make][:tea].
Also, we can check the freshness of our food like so: `food --freshness`.
`--freshness` is a default option. We can access it like so:
`opts.freshness?` or `opts[:freshness]`.
Add unit tests for `ClassCommand::Option` and some other tests that
reflect the additions.
Finally, document everything and fix different typos in the existing
documentation.
Signed-off-by: Kyrylo Silin <kyrylosilin@gmail.com>
