Add dummy DataGenerator class, with some tests.

3 files changed, 63 insertions, 0 deletions

diff --git a/genbackupdatalib/__init__.py b/genbackupdatalib/__init__.py
index 0b306c2..0a5de5c 100644
--- a/genbackupdatalib/__init__.py
+++ b/genbackupdatalib/__init__.py
@@ -16,3 +16,5 @@
 
 version = '1.3'
 
+from generator import DataGenerator
+
diff --git a/genbackupdatalib/generator.py b/genbackupdatalib/generator.py
new file mode 100644
index 0000000..58ad03d
--- /dev/null
+++ b/genbackupdatalib/generator.py
@@ -0,0 +1,26 @@
+# 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/>.
+
+
+class DataGenerator(object):
+
+    '''Generate random binary data.'''
+    
+    def __init__(self, seed):
+        pass
+        
+    def generate(self, size):
+        return ''
+
diff --git a/genbackupdatalib/generator_tests.py b/genbackupdatalib/generator_tests.py
new file mode 100644
index 0000000..e962c11
--- /dev/null
+++ b/genbackupdatalib/generator_tests.py
@@ -0,0 +1,35 @@
+# 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))