test cases for directory.py

1 files changed, 67 insertions, 0 deletions

diff --git a/test/tc_directory.py b/test/tc_directory.py
new file mode 100644
index 00000000..b0a4b780
--- /dev/null
+++ b/test/tc_directory.py
@@ -0,0 +1,67 @@
+import unittest
+import sys, os
+sys.path.append('../code')
+import directory
+
+TESTDIR = os.path.realpath(os.path.join(os.path.dirname(sys.argv[0]), 'testdir'))
+NONEXISTANT_DIR = '/this/directory/will/most/certainly/not/exist'
+
+class Test1(unittest.TestCase):
+	def testInitialCondition(self):
+		# Check for the expected initial condition
+		dir = directory.Directory(TESTDIR)
+
+		self.assertEqual(dir.path, TESTDIR)
+		self.assertFalse(dir.files_loaded)
+		self.assertEqual(dir.files, None)
+		self.assertRaises(directory.NotLoadedYet, len, dir)
+		self.assertRaises(directory.NotLoadedYet, dir.__getitem__, 0)
+
+	def testAfterFilesLoaded(self):
+		# Check whether the directory has the correct list of files.
+		dir = directory.Directory(TESTDIR)
+		dir.load_files()
+
+		self.assertTrue(dir.exists)
+		self.assertEqual(type(dir.files), list)
+
+		# Get the files you expect it to have and sort both before
+		# comparing. I don't expect any order after only loading the files.
+		assumed_files = os.listdir(TESTDIR)
+		assumed_files.sort()
+		dir.files.sort()
+
+		self.assertTrue(len(dir) > 0)
+		self.assertEqual(dir.files, assumed_files)
+
+	def testNonexistantDir(self):
+		dir = directory.Directory(NONEXISTANT_DIR)
+		dir.load_files()
+		
+		self.assertTrue(dir.files_loaded)
+		self.assertFalse(dir.exists)
+		self.assertFalse(dir.accessible)
+		self.assertEqual(dir.files, None)
+		self.assertRaises(directory.NotLoadedYet, len, dir)
+		self.assertRaises(directory.NotLoadedYet, dir.__getitem__, 0)
+
+	def testModifyFrozenClone(self):
+		dir = directory.Directory(TESTDIR)
+		clone = dir.frozenClone()
+
+		# assert that their attributes are equal, except for frozen, which
+		# should be true for the clone.
+		self.assertTrue(clone.frozen)
+		clone.frozen = False
+		self.assertEqual(dir.__dict__, clone.__dict__)
+		clone.frozen = True
+
+		# check for inequality after loading files with one object
+		self.assertEqual(dir.files, clone.files)
+		dir.load_files()
+		self.assertNotEqual(dir.files, clone.files)
+
+		self.assertRaises(directory.FrozenException, clone.load_files)
+
+unittest.main()
+