How to pass multiple arguments in Ruby?

Question

I am new to Ruby and couldn't get any help from answers here, because code level seems pretty advance here:

1. How do I pass multiple arguments to a ruby method as an array?

2. Ruby method with maximum number of parameters

3. http://www.tutorialspoint.com/ruby/ruby_methods.htm

I have created a step_definitions like this:

Then(/^I should see "([^"]*)" as the name for line item (.*)$/) do |puppy_name, line_item|
  @cart.name_for_line_item line_item
end

where method name_for_line_item takes only one argument ie line_item
but in above step_definition I have to verify the puppy_name I am passing.

So I tried:

@cart.name_for_line_item.should include puppy_name line_item but this is red line of error under the method and

if I try

@cart.name_for_line_item line_item .should include puppy_name it give compile time error:

RSpec::Expectations::ExpectationNotMetError

Source: Cucumber and Cheese by Jeff Morgan

Answer 1

You should use parenthesis :

(@cart.name_for_line_item(line_item).should).include? puppy_name 

Latest version of rspec allow another syntax :

expect(@cart.name_for_line_item(line_item)).to include(puppy_name)

Link to rspec documentation : https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers