def testAddData(self):
page = Page(12)
entry = page.add(b"123")
self.assertEqual(entry.page, 12)
self.assertEqual(entry.offset, 2)
self.assertEqual(page.offsetEmpty, 7)
entry = page.add(b"one two three")
self.assertEqual(entry.page, 12)
self.assertEqual(entry.offset, 7)
self.assertEqual(page.offsetEmpty, 22)
data = page.get(2)
self.assertEqual(data, b"123")
data = page.get(7)
self.assertEqual(data, b"one two three")
