1 files changed, 84 insertions, 0 deletions
diff --git a/genbackupdatalib/names_tests.py b/genbackupdatalib/names_tests.py
new file mode 100644
index 0000000..60b4d79
--- /dev/null
+++ b/genbackupdatalib/names_tests.py
@@ -0,0 +1,84 @@
+# Copyright 2011  Lars Wirzenius
+# 
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+import os
+import shutil
+import tempfile
+import unittest
+
+import genbackupdatalib
+
+
+class NameGeneratorTests(unittest.TestCase):
+
+    def setUp(self):
+        self.tempdir = tempfile.mkdtemp()
+        self.depth = 2
+        self.max = 3
+        self.names = self.new()
+        
+    def tearDown(self):
+        shutil.rmtree(self.tempdir)
+        
+    def new(self):
+        return genbackupdatalib.NameGenerator(self.tempdir, self.depth,
+                                              self.max)
+
+    def test_generates_name_that_is_inside_target_directory(self):
+        name = self.names.new()
+        self.assert_(name.startswith(self.tempdir + os.sep))
+
+    def test_generates_different_names_every_time(self):
+        names = set(self.names.new() for i in range(10))
+        self.assertEqual(len(names), 10)
+
+    def test_generates_names_that_do_not_exist(self):
+        for i in range(10):
+            name = self.names.new()
+            self.assertFalse(os.path.exists(name))
+
+    def test_generates_the_same_sequence_with_every_instance(self):
+        n = 10
+        first = [self.names.new() for i in range(n)]
+        names2 = self.new()
+        second = [names2.new() for i in range(n)]
+        self.assertEqual(first, second)
+
+    def test_does_not_generate_names_of_existing_files(self):
+        name = self.names.new()
+        os.makedirs(os.path.dirname(name))
+        file(name, 'w').close()
+        names2 = self.new()
+        name2 = names2.new()
+        self.assertNotEqual(name, name2)
+        self.assertFalse(os.path.exists(name2))
+
+    def test_converts_file_sequence_number_into_right_path_tuple(self):
+        self.assertEqual(self.names._path_tuple(0), (0, 0, 0))
+        self.assertEqual(self.names._path_tuple(1), (0, 0, 1))
+        self.assertEqual(self.names._path_tuple(2), (0, 0, 2))
+        self.assertEqual(self.names._path_tuple(3), (0, 1, 0))
+        self.assertEqual(self.names._path_tuple(4), (0, 1, 1))
+        self.assertEqual(self.names._path_tuple(5), (0, 1, 2))
+        self.assertEqual(self.names._path_tuple(6), (0, 2, 0))
+        self.assertEqual(self.names._path_tuple(9), (1, 0, 0))
+        self.assertEqual(self.names._path_tuple(18), (2, 0, 0))
+        self.assertEqual(self.names._path_tuple(27), (3, 0, 0))
+
+    def test_returns_1tuple_for_depth_zero(self):
+        names = genbackupdatalib.NameGenerator(self.tempdir, 0, 1)
+        self.assertEqual(names._path_tuple(42), (42,))
+