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test_abnf.py
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# -*- coding: utf-8 -*- # """ test_abnf.py websocket - WebSocket client library for Python Copyright 2021 engn33r Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. """ import websocket as ws from websocket._abnf import * import unittest class ABNFTest(unittest.TestCase): def testInit(self): a = ABNF(0,0,0,0, opcode=ABNF.OPCODE_PING) self.assertEqual(a.fin, 0) self.assertEqual(a.rsv1, 0) self.assertEqual(a.rsv2, 0) self.assertEqual(a.rsv3, 0) self.assertEqual(a.opcode, 9) self.assertEqual(a.data, '') a_bad = ABNF(0,1,0,0, opcode=77) self.assertEqual(a_bad.rsv1, 1) self.assertEqual(a_bad.opcode, 77) def testValidate(self): a_invalid_ping = ABNF(0,0,0,0, opcode=ABNF.OPCODE_PING) self.assertRaises(ws._exceptions.WebSocketProtocolException, a_invalid_ping.validate, skip_utf8_validation=False) a_bad_rsv_value = ABNF(0,1,0,0, opcode=ABNF.OPCODE_TEXT) self.assertRaises(ws._exceptions.WebSocketProtocolException, a_bad_rsv_value.validate, skip_utf8_validation=False) a_bad_opcode = ABNF(0,0,0,0, opcode=77) self.assertRaises(ws._exceptions.WebSocketProtocolException, a_bad_opcode.validate, skip_utf8_validation=False) a_bad_close_frame = ABNF(0,0,0,0, opcode=ABNF.OPCODE_CLOSE, data=b'\x01') self.assertRaises(ws._exceptions.WebSocketProtocolException, a_bad_close_frame.validate, skip_utf8_validation=False) a_bad_close_frame_2 = ABNF(0,0,0,0, opcode=ABNF.OPCODE_CLOSE, data=b'\x01\x8a\xaa\xff\xdd') self.assertRaises(ws._exceptions.WebSocketProtocolException, a_bad_close_frame_2.validate, skip_utf8_validation=False) a_bad_close_frame_3 = ABNF(0,0,0,0, opcode=ABNF.OPCODE_CLOSE, data=b'\x03\xe7') self.assertRaises(ws._exceptions.WebSocketProtocolException, a_bad_close_frame_3.validate, skip_utf8_validation=True) def testMask(self): abnf_none_data = ABNF(0,0,0,0, opcode=ABNF.OPCODE_PING, mask=1, data=None) bytes_val = b"aaaa" self.assertEqual(abnf_none_data._get_masked(bytes_val), bytes_val) abnf_str_data = ABNF(0,0,0,0, opcode=ABNF.OPCODE_PING, mask=1, data="a") self.assertEqual(abnf_str_data._get_masked(bytes_val), b'aaaa\x00') def testFormat(self): abnf_bad_rsv_bits = ABNF(2,0,0,0, opcode=ABNF.OPCODE_TEXT) self.assertRaises(ValueError, abnf_bad_rsv_bits.format) abnf_bad_opcode = ABNF(0,0,0,0, opcode=5) self.assertRaises(ValueError, abnf_bad_opcode.format) abnf_length_10 = ABNF(0,0,0,0, opcode=ABNF.OPCODE_TEXT, data="abcdefghij") self.assertEqual(b'\x01', abnf_length_10.format()[0].to_bytes(1, 'big')) self.assertEqual(b'\x8a', abnf_length_10.format()[1].to_bytes(1, 'big')) self.assertEqual("fin=0 opcode=1 data=abcdefghij", abnf_length_10.__str__()) abnf_length_20 = ABNF(0,0,0,0, opcode=ABNF.OPCODE_BINARY, data="abcdefghijabcdefghij") self.assertEqual(b'\x02', abnf_length_20.format()[0].to_bytes(1, 'big')) self.assertEqual(b'\x94', abnf_length_20.format()[1].to_bytes(1, 'big')) abnf_no_mask = ABNF(0,0,0,0, opcode=ABNF.OPCODE_TEXT, mask=0, data=b'\x01\x8a\xcc') self.assertEqual(b'\x01\x03\x01\x8a\xcc', abnf_no_mask.format()) def testFrameBuffer(self): fb = frame_buffer(0, True) self.assertEqual(fb.recv, 0) self.assertEqual(fb.skip_utf8_validation, True) fb.clear self.assertEqual(fb.header, None) self.assertEqual(fb.length, None) self.assertEqual(fb.mask, None) self.assertEqual(fb.has_mask(), False) if __name__ == "__main__": unittest.main()