Class: RSpec::Rails::Matchers::BeANew

Inherits:
Matchers::BuiltIn::BaseMatcher
  • Object
show all
Defined in:
lib/rspec/rails/matchers/be_a_new.rb

Instance Method Summary collapse

Constructor Details

#initialize(expected) ⇒ BeANew

Returns a new instance of BeANew.



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# File 'lib/rspec/rails/matchers/be_a_new.rb', line 4

def initialize(expected)
  @expected = expected
end

Instance Method Details

#failure_message_for_should ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/rspec/rails/matchers/be_a_new.rb', line 28

def failure_message_for_should
  [].tap do |message|
    unless actual.is_a?(expected) && actual.new_record?
      message << "expected #{actual.inspect} to be a new #{expected.inspect}"
    end
    unless attributes_match?(actual)
      if unmatched_attributes.size > 1
        message << "attributes #{unmatched_attributes.inspect} were not set on #{actual.inspect}"
      else
        message << "attribute #{unmatched_attributes.inspect} was not set on #{actual.inspect}"
      end
    end
  end.join(' and ')
end

#matches?(actual) ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean) 


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# File 'lib/rspec/rails/matchers/be_a_new.rb', line 9

def matches?(actual)
  @actual = actual
  actual.is_a?(expected) && actual.new_record? && attributes_match?(actual)
end

#with(expected_attributes) ⇒ Object

Use this to specify the specific attributes to match on the new record.

Examples:


it "assigns a new Thing with the submitted attributes" do
  post :create, :thing => { :name => "Illegal Value" }
  assigns(:thing).should be_a_new(Thing).with(:name => nil)
end


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# File 'lib/rspec/rails/matchers/be_a_new.rb', line 22

def with(expected_attributes)
  attributes.merge!(expected_attributes)
  self
end