Class: RSpec::Matchers::BuiltIn::RespondTo Private

Inherits:
BaseMatcher
  • Object
show all
Defined in:
lib/rspec/matchers/built_in/respond_to.rb

Overview

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

Provides the implementation for respond_to. Not intended to be instantiated directly.

Constant Summary

Constant Summary

Constants inherited from BaseMatcher

BaseMatcher::UNDEFINED

Instance Method Summary collapse

Methods inherited from BaseMatcher

#diffable?, #expects_call_stack_jump?, #match_unless_raises, #supports_block_expectations?

Methods included from Composable

#===, #and, #description_of, enumerable?, #or, surface_descriptions_in, #values_match?

Methods included from Pretty

#name, split_words, #to_sentence, #to_word

Constructor Details

#initialize(*names) ⇒ RespondTo

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 a new instance of RespondTo



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# File 'lib/rspec/matchers/built_in/respond_to.rb', line 10

def initialize(*names)
  @names = names
  @expected_arity = nil
end

Instance Method Details

#argumentObject Also known as: arguments

No-op. Intended to be used as syntactic sugar when using with.

Examples:

expect(obj).to respond_to(:message).with(3).arguments


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# File 'lib/rspec/matchers/built_in/respond_to.rb', line 30

def argument
  self
end

#descriptionString

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:

  • (String)


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# File 'lib/rspec/matchers/built_in/respond_to.rb', line 59

def description
  "respond to #{pp_names}#{with_arity}"
end

#failure_messageString

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:

  • (String)


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# File 'lib/rspec/matchers/built_in/respond_to.rb', line 47

def failure_message
  "expected #{@actual.inspect} to respond to #{@failing_method_names.map { |name| name.inspect }.join(', ')}#{with_arity}"
end

#failure_message_when_negatedString

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:

  • (String)


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# File 'lib/rspec/matchers/built_in/respond_to.rb', line 53

def failure_message_when_negated
  failure_message.sub(/to respond to/, 'not to respond to')
end

#with(n) ⇒ Object

Specifies the number of expected arguments.

Examples:

expect(obj).to respond_to(:message).with(3).arguments


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# File 'lib/rspec/matchers/built_in/respond_to.rb', line 20

def with(n)
  @expected_arity = n
  self
end