def test_seek(self):
self.db.fs.files.remove({})
self.db.fs.chunks.remove({})
file = GridFile({"filename": "test", "chunkSize": 3}, self.db, "w")
file.write("hello world")
self.assertRaises(ValueError, file.seek, 0)
file.close()
file = GridFile({"filename": "test"}, self.db, "r")
self.assertEqual(file.read(), "hello world")
file.seek(0)
self.assertEqual(file.read(), "hello world")
file.seek(1)
self.assertEqual(file.read(), "ello world")
self.assertRaises(IOError, file.seek, -1)
file.seek(-3, _SEEK_END)
self.assertEqual(file.read(), "rld")
file.seek(0, _SEEK_END)
self.assertEqual(file.read(), "")
self.assertRaises(IOError, file.seek, -100, _SEEK_END)
file.seek(3)
file.seek(3, _SEEK_CUR)
self.assertEqual(file.read(), "world")
self.assertRaises(IOError, file.seek, -100, _SEEK_CUR)
file.close()
def test_seek(self):
self.db.fs.files.remove({})
self.db.fs.chunks.remove({})
file = GridFile({"filename": "test", "chunkSize": 3}, self.db, "w")
file.write("hello world")
self.assertRaises(ValueError, file.seek, 0)
file.close()
file = GridFile({"filename": "test"}, self.db, "r")
self.assertEqual(file.read(), "hello world")
file.seek(0)
self.assertEqual(file.read(), "hello world")
file.seek(1)
self.assertEqual(file.read(), "ello world")
self.assertRaises(IOError, file.seek, -1)
file.seek(-3, _SEEK_END)
self.assertEqual(file.read(), "rld")
file.seek(0, _SEEK_END)
self.assertEqual(file.read(), "")
self.assertRaises(IOError, file.seek, -100, _SEEK_END)
file.seek(3)
file.seek(3, _SEEK_CUR)
self.assertEqual(file.read(), "world")
self.assertRaises(IOError, file.seek, -100, _SEEK_CUR)
file.close()
