beforeEach( ->
  jasmine.addMatchers(
    toEqualISO: (util, customEqualityTesters) ->
      {
        compare: (actual, expected) ->
          result = {}
          iso = actual.toISOString()
          unless result.pass = util.equals(iso, expected)
            result.message = "Expected '#{iso}' to equal '#{expected}'"
          result
      }
  )
)