Command-Line Configuration
To see all the available command-line options, run rspec --help. You’ll get a pretty big list of settings, some of which you’ve already used in this book. We’re not going to go over them all here, but there are a few we’d like to highlight.
Environment Options
Sometimes, you need to control how RSpec loads your Ruby code. For instance, you may be experimenting with a locally modified version of a library—in that case, you’d want RSpec to load your custom version of that library instead of the default one.
The first two options listed in the --help output are for these kinds of environment customizations:
| | -I PATH Specify PATH to add to $LOAD_PATH (may ↩ |
| | be used more than once). |
| | -r, --require PATH Require a file. ... |
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