Tester – Option Enumeration Class

The Tester class is next to transition from Qt to the STL.  When enumerations were changed to C++11 enumeration classes, the Option enumeration in the Tester class was excluded because it was used for a loop iterator and contained a number of enumerators used for various purposes.  These needed to be removed before changing this enumeration to an enumeration class.

The none enumerator used to indicate no option was removed.  The default Option enumerator, Option{}, will be used to indicate no option.  The first enumerator (parser) needed to be set to 1 for this to work (like done with other enumeration classes).

The size of enumerator was used to dimension an array of strings for the names of each of the options, which is used to compare the command line file name to select the appropriate test option.  The option enumerators were used as indexes to set the elements of this array.  This method is error-prone (elements could be missed), and enumeration class enumerators cannot be used as indexes.  This array was changed to a std::unordered_map with an initializer list for each of the options except for the recreator.  The size of enumerator was removed since it is not needed to initialized the map.

The first and number of enumerators were used to bound the loop through the names of the options to compare to the file name from the command line to set the appropriate option.  The number of enumerator did not include the recreator name (there are no recreator test files).  This loop was changed to range-for iterating over the items in the new name map (why the recreator name was not put into the name map).  The starts with Qt comparison call was changed to the standard equal function using a C++11 lambda to do a case insensitive comparison.

The option member was set to the error enumerator when an error was detected to indicate an error.  For each error, the error message string was also set.  The error enumerator was not needed since a non-empty error message string can be used to indicate an error, and was removed.  The has error access function was changed to check for a non-empty error message string.

The option member was defined as an integer so that it could be set to the loop iterator variable (an integer).  Since the option enumerator value is directly accessible in the range loop (the key in the iterator), the option member could be properly re-typed as an Option enumeration class variable.  The test name member was changed to a standard string (to match value in the name map) and the arguments to the is option function was changed to standard strings.

[branch stl commit 5c3a7d6141]  (The Qt 4.8.2 memory bug persists.)