Experimental lexer generator: add a test for the code generator.

tools/lexer_generator/test_suite.py

 # Copyright 2013 the V8 project authors. All rights reserved.
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 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
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@@ skipping 11 matching lines @@
 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 from unittest import TestLoader, TextTestRunner, TestSuite
 
 from action_test import *
 from automata_test import *
+from code_generator_test import *
 from lexer_test import *
 from rule_parser_test import *
 from transition_key_test import *
 
 if __name__ == "__main__":
   loader = TestLoader()
   suite = TestSuite((
     loader.loadTestsFromTestCase(TransitionKeyTestCase),
     loader.loadTestsFromTestCase(AutomataTestCase),
     loader.loadTestsFromTestCase(RuleParserTestCase),
     loader.loadTestsFromTestCase(ActionTestCase),
     loader.loadTestsFromTestCase(LexerTestCase),
+    loader.loadTestsFromTestCase(CodeGeneratorTestCase),
   ))
   runner = TextTestRunner(verbosity = 2)
   runner.run(suite)