Module: Shoulda::Matchers::Util

Defined in:
lib/shoulda/matchers/util.rb

Constant Summary collapse

MAXIMUM_LENGTH_OF_VALUE_TO_DISPLAY = 
500

Class Method Summary collapse

Class Method Details

.a_or_an(next_word) ⇒ Object 



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# File 'lib/shoulda/matchers/util.rb', line 40

def self.a_or_an(next_word)
  if next_word =~ /\A[aeiou]/i && next_word != 'unique'
    "an #{next_word}"
  else
    "a #{next_word}"
  end
end

.deconstantize(path) ⇒ Object 



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# File 'lib/shoulda/matchers/util.rb', line 9

def self.deconstantize(path)
  if defined?(ActiveSupport::Inflector) &&
     ActiveSupport::Inflector.respond_to?(:deconstantize)

    ActiveSupport::Inflector.deconstantize(path)
  else
    path.to_s[0...(path.to_s.rindex('::') || 0)]
  end
end

.dummy_value_for(column_type, array: false) ⇒ Object 



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# File 'lib/shoulda/matchers/util.rb', line 86

def self.dummy_value_for(column_type, array: false)
  if array
    [dummy_value_for(column_type, array: false)]
  else
    case column_type
    when :integer
      0
    when :date
      Date.new(2100, 1, 1)
    when :datetime, :timestamp, :timestamptz
      DateTime.new(2100, 1, 1)
    when :time
      Time.new(2000, 1, 1)
    when :uuid
      SecureRandom.uuid
    when :boolean
      true
    else
      'dummy value'
    end
  end
end

.indent(string, width) ⇒ Object 



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# File 'lib/shoulda/matchers/util.rb', line 33

def self.indent(string, width)
  return if !string

  indentation = ' ' * width
  string.split(/[\n\r]/).map { |line| indentation + line }.join("\n")
end

.inspect_hash(hash) ⇒ Object 



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# File 'lib/shoulda/matchers/util.rb', line 72

def self.inspect_hash(hash)
  String.new('‹{').tap do |output|
    output << hash.map { |key, value|
      if key.is_a?(Symbol)
        "#{key}: #{value.inspect}"
      else
        "#{key.inspect} => #{value.inspect}"
      end
    }.join(', ')

    output << '}›'
  end
end

.inspect_range(range) ⇒ Object 



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# File 'lib/shoulda/matchers/util.rb', line 68

def self.inspect_range(range)
  "#{inspect_value(range.begin)} to #{inspect_value(range.end)}"
end

.inspect_value(value) ⇒ Object 



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# File 'lib/shoulda/matchers/util.rb', line 48

def self.inspect_value(value)
  case value
  when Hash
    inspect_hash(value)
  when Range
    inspect_range(value)
  else
    inspected_value = value.inspect
    if inspected_value.length > MAXIMUM_LENGTH_OF_VALUE_TO_DISPLAY
      "‹#{inspected_value[0, MAXIMUM_LENGTH_OF_VALUE_TO_DISPLAY]}...›"
    else
      "‹#{inspected_value}›"
    end
  end
end

.inspect_values(values) ⇒ Object 



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# File 'lib/shoulda/matchers/util.rb', line 64

def self.inspect_values(values)
  values.map { |value| inspect_value(value) }
end

.safe_constantize(camel_cased_word) ⇒ Object 



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# File 'lib/shoulda/matchers/util.rb', line 19

def self.safe_constantize(camel_cased_word)
  if defined?(ActiveSupport::Inflector) &&
     ActiveSupport::Inflector.respond_to?(:safe_constantize)

    ActiveSupport::Inflector.safe_constantize(camel_cased_word)
  else
    begin
      camel_cased_word.constantize
    rescue NameError
      nil
    end
  end
end