Test module: custom_callables.py

custom_callables.py

A module containing tests for the standard argparser custom callables I’m using in custom_callables.py. These tests use the standard unittest package and extend the unittest.TestCase class.

module_version:1.0 created_on:2013-04-08

Custom callable tests

class tests.custom_callables.TestParsingRoutines(methodName='runTest')

Test the function defined in custom_callables.py.

Each function is tested with existing and non-existent instances of the file or path type that it is designed for. We also test that providing non- string basic python objects produces string representations and doesn’t case a failure.

setUp()

Initialize the framework for testing.

Define and create a new system temporary directory with the tempfile package for use as an existing directory. A file called thisfileexists.txt is created in this directory as an existing file. Two new paths that do not exist, one a fake sub-directory in the existing directory and the other a fake file in this fake directory, are constructed.

tearDown()

Remove testing framework.

Deletes the created temporary directory and thisfileexists.txt file.

test_input_file()

Test the input_file function.

Test object	Expectation
Existing file	Return full file path
Non-existent file	Raise argparse.ArgumentTypeError exception
Non-string arg	Raise TypeError exception

test_input_path()

Test the input_path function.

Test object	Expectation
Existing path	Return full path
Non-existent path	Raise argparse.ArgumentTypeError exception
Non-string arg	Raise TypeError exception

test_output_file()

Test the output_file function.

Test object	Expectation
Existing file	Return full file path
Non-existent file	Create path (but not file) & return full path
Non-string arg	Raise TypeError exception

test_output_path()

Test the output_path function.

Test object	Expectation
Existing path	Return full path
Non-existent path	Create path & return full path
Non-string arg	Raise TypeError exception