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test_command.py
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60 lines (52 loc) · 2.1 KB
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#!/usr/bin/env python
from command import MoveFileCommand
import os, shutil, subprocess, sys
if sys.version_info < (2, 7):
import unittest2 as unittest
else:
import unittest
class CommandTest(unittest.TestCase):
@classmethod
def __get_test_directory(self):
"""
Get the temporary directory for the tests.
"""
self.test_dir = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'test_command')
@classmethod
def setUpClass(self):
"""
- Create a temporary directory and file
/test_command
/foo.txt
- get the temporary test directory
- and initializes the command stack.
"""
os.mkdir('test_command')
open('test_command/foo.txt', 'w').close()
self.__get_test_directory()
self.command_stack = []
self.command_stack.append(MoveFileCommand(os.path.join(self.test_dir, 'foo.txt'), os.path.join(self.test_dir, 'bar.txt')))
self.command_stack.append(MoveFileCommand(os.path.join(self.test_dir, 'bar.txt'), os.path.join(self.test_dir, 'baz.txt')))
def test_sequential_execution(self):
self.command_stack[0].execute()
output_after_first_execution = os.listdir(self.test_dir)
self.assertEqual(output_after_first_execution[0], 'bar.txt')
self.command_stack[1].execute()
output_after_second_execution = os.listdir(self.test_dir)
self.assertEqual(output_after_second_execution[0], 'baz.txt')
def test_sequential_undo(self):
self.command_stack = list(reversed(self.command_stack))
self.command_stack[0].undo()
output_after_first_undo = os.listdir(self.test_dir)
self.assertEqual(output_after_first_undo[0], 'bar.txt')
self.command_stack[1].undo()
output_after_second_undo = os.listdir(self.test_dir)
self.assertEqual(output_after_second_undo[0], 'foo.txt')
@classmethod
def tearDownClass(self):
"""
Remove the temporary directory /test_command and its content.
"""
shutil.rmtree('test_command')
if __name__ == "__main__":
unittest.main()