Add method prefix and test prefix/suffix options.

[obszczymucha]

This allows specifying the prefix for test and method names, so the tests can be now defined as follows:

function shouldValidateArguments()
...
end

or

function should_validate_arguments()
...
end

If not provided, the behavior is unchanged and it defaults to the current test prefix.

Runner example:

local runner = lu.LuaUnit.new()
runner:setOutputType( "text" )
os.exit( runner:runSuite( "-t", "should" ) )

Or we can do this with objects:

MySpecification = {}

function MySpecification:shouldAddTwoNumbers()
...
end

Runner example:

local runner = lu.LuaUnit.new()
runner:setOutputType( "text" )
os.exit( runner:runSuite( "-T", "Specification", "-m", "should" ) )

[bluebird75]

Hi,

Sorry for the delay, I just moved to a new house so things like open source have been left behind.

I like the patch, I need to further review it but it looks great. And with unit-tests, this is exceptional 👍

[obszczymucha]

Hey. No worries at all! Thanks for responding!