To run unit tests (assuming unix-style commandline, adjust as needed for windows):

cd into the SQLAlchemy distribution directory.

Set up the PYTHONPATH:

    export PYTHONPATH=./test/

The unittest framework will automatically prepend './lib/' to sys.path.  this forces the local 
version to run, bypassing any setuptools-installed installations.

To run all tests:

    python test/alltests.py

Help is available via:

    python test/alltests.py --help

    usage: alltests.py [options] files...
    
    options:
      -h, --help            show this help message and exit
      --dburi=DBURI         database uri (overrides --db)
      --db=DB               prefab database uri (sqlite, sqlite_file, postgres,
    			mysql, oracle, oracle8, mssql)
      --mockpool            use mock pool
      --verbose             full debug echoing
      --noecho              Disable SQL statement echoing
      --quiet               be totally quiet
      --nothreadlocal       dont use thread-local mod
      --enginestrategy=ENGINESTRATEGY
    			engine strategy (plain or threadlocal, defaults to SA
    			default)
    

Any unittest module can be run directly from the module file (same commandline options):

    python test/orm/mapper.py

Additionally, to run a speciic test within the module, specify it as ClassName.methodname:

    python test/orm/mapper.py MapperTest.testget


