def test_calc_blob(self): cursor = tBlobCursor(self.context) cursor.deleteAll() cursor.insert() cursor.get(1) self.assertEquals(1, cursor.id) self.assertEquals(None, cursor.dat) cursor.calcdat() self.assertTrue(cursor.dat and cursor.dat.isNull()) os = cursor.dat.getOutStream() osw = OutputStreamWriter(os, 'utf-8') try: osw.append('blob field') finally: osw.close() cursor.update() cursor.clear() cursor.get(1) cursor.calcdat() bf = BufferedReader( InputStreamReader(cursor.dat.getInStream(), 'utf-8')) self.assertEquals('blob field', bf.readLine()) bf.close() cursor.clear() cursor.calcdat() os = cursor.dat.getOutStream() osw = OutputStreamWriter(os, 'utf-8') try: osw.append('blob field 2!') finally: osw.close() cursor.insert() cursor.clear() cursor.get(2) cursor.calcdat() bf = BufferedReader( InputStreamReader(cursor.dat.getInStream(), 'utf-8')) self.assertEquals('blob field 2!', bf.readLine()) bf.close()