Add an explicit note to the README explaining what programs are
necessary and the perhaps-surprising behavior of skipping tests if
they aren't present.
Signed-off-by: Ethan Glasser-Camp <ethan@betacantrips.com>
add tests in this directory to cover what you are trying to fix or
enhance.
+Prerequisites
+-------------
+Some tests require external dependencies to run. Without them, they
+will be skipped, or (rarely) marked failed. Please install these, so
+that you know if you break anything.
+
+ - dtach(1)
+ - emacs(1)
+ - emacsclient(1)
+ - gdb(1)
+ - gpg(1)
+ - python(1)
+
Running Tests
-------------
The easiest way to run tests is to say "make test", (or simply run the