code: public static void isEqual (final double dValue, final double dExpectedValue, final String sName)
    {
      if (isEnabled ())
        isEqual (dValue, dExpectedValue, () -> sName);
    }
docs: Check that the passed value is the same as the provided expected value
  using <code>==</code> to check comparison.
  
  @param dValue
  The First value.
  @param dExpectedValue
  The expected value.
  @param sName
  The name of the value (e.g. the parameter name)
  @throws IllegalArgumentException
  if the passed value is not <code>null</code>.