cheat sheets.

gem install ZenTest

# autotest

$ autotest [options]

options:
        -h
        -help           You're looking at it.

        -v              Be verbose. Prints files that autotest doesn't know how
        to map to tests.

        -q              Be more quiet.

        -f              Fast start. Doesn't initially run tests at start.

# Rails testing

require 'test/rails'

## assertions

assert_empty []
assert_in_epsilon a, b, 0.5
assert_include [a, b, c], a
assert_includes [a, b, c], a  # just syntactical sugar
deny false
deny_empty [1, 2, 3]
deny_equal 1, 2               # alias for assert_not_equal
deny_include [a, b, c], d
deny_includes [a, b, c], d    # just syntactical sugar
deny_nil []                   # alias for assert_not_nil