Here is what you get when you run this test. Note that
the bottom line states that there are three assertions
with exactly 1 failure (the last assert in test_basic_food.rb).
That test fails because I put in 'wrongname' instead of 'Avocado'

Actual console output you should get if you run the example unit test:
----------------------------------------------------------------------

llk@nitron:~/ruby/DietManager$ ruby test_basic_food.rb
Run options:

# Running tests:

F

Finished tests in 0.001237s, 808.5310 tests/s, 2425.5929 assertions/s.

  1) Failure:
test1(TestBasicFood) [test_basic_food.rb:20]:
This test should fail because the food.name is: Avocado

1 tests, 3 assertions, 1 failures, 0 errors, 0 skips