/ Ruby
/
method

assert_raise

v1_9_3_392 - Show latest stable - Class: Test::Unit::Assertions
assert_raise(*args, &b)
public

Tests if the given block raises an exception. Acceptable exception types maye be given as optional arguments. If the last argument is a String, it will be used as the error message.

assert_raise do #Fails, no Exceptions are raised
end

assert_raise NameError do
  puts x  #Raises NameError, so assertion succeeds
end

1Note

Typo

olitreadwell ยท Apr 2, 2015

"Acceptable exception types maye be given as optional arguments. If the last argument is a String, it will be used as the error message."

"Acceptable exception types may be given as optional arguments. If the last argument is a String, it will be used as the error message."