Question

I don’t understand why this code is not working properly:

def test
  raise Exception.new 'error'
end

def caller
  begin
    test
  rescue =>e
     puts e.message
  end
end

caller

I want to catch the test exception in the caller method, but it seems that the caller method is not catching anything.

Answer 1

Jan beat me to it, but…

When you use the => var syntax with exception, you must specify what kind of exception you want to rescue. The base class for all exceptions is Exception, so it will work if you change that to rescue Exception => e. Also, when what you’re rescuing from is the entire body of a method, you don’t need an explicit begin…end block…

def test
  raise Exception.new 'error'
end

def caller
  test
rescue Exception =>e
  puts e.message
end

caller()