<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def finalize_options(self):
 """Finalizes the command's options. Args: self (CoverageCommand):
 the ``CoverageCommand`` instance Returns: ``None`` """

        self.cwd = os.path.abspath(os.path.dirname(__file__))
        self.test_dir = os.path.join(self.cwd, 'tests')