1 files changed, 42 insertions, 0 deletions
diff --git a/genbackupdatalib/generator_tests.py b/genbackupdatalib/generator_tests.py
new file mode 100644
index 0000000..80d12b4
--- /dev/null
+++ b/genbackupdatalib/generator_tests.py
@@ -0,0 +1,42 @@
+# Copyright 2010  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 unittest
+
+import genbackupdatalib
+
+
+class DataGeneratorTests(unittest.TestCase):
+
+    def setUp(self):
+        self.g1 = genbackupdatalib.DataGenerator(0)
+        self.g2 = genbackupdatalib.DataGenerator(0)
+        
+    def test_every_generator_returns_same_sequence(self):
+        amount = 1024
+        self.assertEqual(self.g1.generate(amount), self.g2.generate(amount))
+        
+    def test_returns_different_sequence_for_different_seed(self):
+        amount = 1024
+        g3 = genbackupdatalib.DataGenerator(1)
+        self.assertNotEqual(self.g1.generate(amount), g3.generate(amount))
+        
+    def test_returns_distinct_64k_chunks(self):
+        size = 64 * 1024
+        chunk1 = self.g1.generate(size)
+        num_chunks = 100
+        for i in range(num_chunks):
+            self.assertNotEqual(self.g1.generate(size), chunk1)