Class: NormalizedHash::Matchers::HashValues

Inherits:
HashMatchers show all
Defined in:
lib/normalized_hash/hash_values.rb

Overview

RSpec::Matchers class for testing hierarchically hashes, that are elements of deep hash.

HashValues class tests that all values of the Hash belong to list of Classes.

Usage 

it { @hash.should have_values_in_class [String, Symbol] }
it { @hash.should have_values_in_class String }

Instance Method Summary collapse

Methods inherited from HashMatchers

#initialize

Constructor Details

This class inherits a constructor from NormalizedHash::Matchers::HashMatchers

Instance Method Details

#description ⇒ Object 



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# File 'lib/normalized_hash/hash_values.rb', line 31

def description 
  "have (recursively) every value one of class: #{[@expectation].flatten.join ','}"
end

#failure_message_for_should ⇒ Object 



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# File 'lib/normalized_hash/hash_values.rb', line 59

def failure_message_for_should
  "expected #{@target.values.inspect} to have values of classes #{@expectation.inspect}"
end

#failure_message_for_should_not ⇒ Object 



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# File 'lib/normalized_hash/hash_values.rb', line 63

def failure_message_for_should_not
  "expected #{@target.values.inspect} differ from  #{@expectation.inspect}"
end

#matches?(target) ⇒ Boolean

Test that all values of the tested Hash belong to provided list of classes

Parameters:

  • target (Hash) —

    hash under test

Returns:

  • (Boolean) —

    true if pass, false if fail



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# File 'lib/normalized_hash/hash_values.rb', line 41

def matches?(target)
  result = true

  if target.is_a? Hash
    @target, @actual = target, target.values.map(&:class).uniq

    result &&= (@actual - @expectation).empty?
    
    @target.each_value do |val|
      result &&= HashValues.new(@expectation).matches?(val) if val.is_a?(Hash)
      @target = val unless result
    end
  end

  result
end