Class: RSpec::Mocks::ArgumentListMatcher

Inherits:
Object
  • Object
show all
Defined in:
lib/rspec/mocks/argument_list_matcher.rb

Overview

Wrapper for matching arguments against a list of expected values. Used by the with method on a MessageExpectation:

expect(object).to receive(:message).with(:a, 'b', 3)
object.message(:a, 'b', 3)

Values passed to with can be literal values or argument matchers that match against the real objects .e.g.

expect(object).to receive(:message).with(hash_including(:a => 'b'))

Can also be used directly to match the contents of any Array. This enables 3rd party mocking libs to take advantage of rspec's argument matching without using the rest of rspec-mocks.

require 'rspec/mocks/argument_list_matcher'
include RSpec::Mocks::ArgumentMatchers
arg_list_matcher = RSpec::Mocks::ArgumentListMatcher.new(123, hash_including(:a => 'b'))
arg_list_matcher.args_match?(123, :a => 'b')

This class is immutable.

See Also:

Constant Summary

Instance Method Summary (collapse)

Constructor Details

- (ArgumentListMatcher) initialize(*expected_args)

Initializes an ArgumentListMatcher with a collection of literal values and/or argument matchers.

Parameters:

  • expected_args (Array) —

    a list of expected literals and/or argument matchers

See Also:

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# File 'lib/rspec/mocks/argument_list_matcher.rb', line 45
def initialize(*expected_args)
  @expected_args = expected_args
  @matchers = case expected_args.first
    when ArgumentMatchers::AnyArgsMatcher then Array
    when ArgumentMatchers::NoArgsMatcher  then []
    else expected_args
  end
end

Instance Method Details

- (Boolean) args_match?(*args)

Matches each element in the expected_args against the element in the same position of the arguments passed to new.

Parameters:

  • args (Array)

Returns:

  • (Boolean)

See Also:

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# File 'lib/rspec/mocks/argument_list_matcher.rb', line 62
def args_match?(*args)
  Support::FuzzyMatcher.values_match?(@matchers, args)
end