Method: ActiveSupport::Testing::Assertions#assert_raises

Defined in:
activesupport/lib/active_support/testing/assertions.rb

#assert_raises(*exp, match: nil, &block) ⇒ Object Also known as: assert_raise

Asserts that a block raises one of exp. This is an enhancement of the standard Minitest assertion method with the ability to test error messages.

assert_raises(ArgumentError, match: /incorrect param/i) do
  perform_service(param: 'exception')
end



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# File 'activesupport/lib/active_support/testing/assertions.rb', line 34

def assert_raises(*exp, match: nil, &block)
  error = super(*exp, &block)
  assert_match(match, error.message) if match
  error
end