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test_utils.py
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86 lines (75 loc) · 2.84 KB
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import unittest
from unittest.mock import MagicMock
from ssh2.utils import find_eol, readline
class UtilsTest(unittest.TestCase):
def test_find_eol_no_lines(self):
buf = b"a buffer"
linepos, new_line_pos = find_eol(buf, 0)
self.assertEqual(linepos, -1)
self.assertEqual(new_line_pos, 0)
def test_read_line(self):
lines = [b'a line', b'another line', b'third']
buf = b"\n".join(lines)
pos = 0
line_num = 0
linesep, new_line_pos = find_eol(buf, 0)
self.assertTrue(linesep > 0)
self.assertTrue(linesep < len(buf))
while pos < len(buf):
if linesep < 0:
break
end_of_line = pos + linesep
line = buf[pos:end_of_line]
self.assertEqual(lines[line_num], line)
pos += linesep + new_line_pos
line_num += 1
linesep, new_line_pos = find_eol(buf, pos)
line = buf[pos:]
self.assertEqual(lines[line_num], line)
def test_read_line_crnl(self):
lines = [b'a line', b'another line', b'third']
buf = b"\r\n".join(lines)
pos = 0
line_num = 0
linesep, new_line_pos = find_eol(buf, 0)
self.assertTrue(linesep > 0)
self.assertTrue(linesep < len(buf))
while pos < len(buf):
if linesep < 0:
break
end_of_line = pos + linesep
line = buf[pos:end_of_line]
self.assertEqual(lines[line_num], line)
pos += linesep + new_line_pos
line_num += 1
linesep, new_line_pos = find_eol(buf, pos)
line = buf[pos:]
self.assertEqual(lines[line_num], line)
def test_read_line_cr_only(self):
lines = [b'a line', b'another line', b'third']
buf = b"\r".join(lines)
linesep, new_line_pos = find_eol(buf, 0)
self.assertEqual(linesep, -1)
def test_read_line_bad_data(self):
linesep, new_line_pos = find_eol(b"", 0)
self.assertEqual(linesep, -1)
self.assertEqual(new_line_pos, 0)
linesep, new_line_pos = find_eol(b"\n", 0)
self.assertEqual(linesep, 0)
self.assertEqual(new_line_pos, 1)
linesep, new_line_pos = find_eol(b"\r\n", 0)
self.assertEqual(linesep, 0)
self.assertEqual(new_line_pos, 2)
linesep, new_line_pos = find_eol(b"\r", 0)
self.assertEqual(linesep, -1)
self.assertEqual(new_line_pos, 0)
def test_read_line_gen(self):
lines = [b'a line', b'another line', b'third']
lines_data = [b'a lin', b'e\nanother', b' line\nthird']
class MyBuf:
def __iter__(self):
for data in lines_data:
yield data
lines_buf = MyBuf()
out_data = [line for line in readline(lines_buf)]
self.assertListEqual(lines, out_data)