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GeezerVison is showing github.com — GitPython/gitdb/gitdb/test/test_util.py at main · gitpython-developers/GitPython Expand file tree/ Copy pathtest_util.pyMore file actions 100 lines (83 loc) · 3.17 KB / Copy pathtest_util.pyFile metadata and controls100 lines (83 loc) · 3.17 KB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 # Copyright (C) 2010, 2011 Sebastian Thiel ([email protected]) and contributors # # This module is part of GitDB and is released under # the New BSD License: https://opensource.org/license/bsd-3-clause/ """Test for object db""" import tempfile import os from gitdb.test.lib import TestBase from gitdb.util import ( to_hex_sha, to_bin_sha, NULL_HEX_SHA, LockedFD ) class TestUtils(TestBase): def test_basics(self): assert to_hex_sha(NULL_HEX_SHA) == NULL_HEX_SHA assert len(to_bin_sha(NULL_HEX_SHA)) == 20 assert to_hex_sha(to_bin_sha(NULL_HEX_SHA)) == NULL_HEX_SHA.encode("ascii") def _cmp_contents(self, file_path, data): # raise if data from file at file_path # does not match data string with open(file_path, "rb") as fp: assert fp.read() == data.encode("ascii") def test_lockedfd(self): my_file = tempfile.mktemp() orig_data = "hello" new_data = "world" with open(my_file, "wb") as my_file_fp: my_file_fp.write(orig_data.encode("ascii")) try: lfd = LockedFD(my_file) lockfilepath = lfd._lockfilepath() # cannot end before it was started self.assertRaises(AssertionError, lfd.rollback) self.assertRaises(AssertionError, lfd.commit) # open for writing assert not os.path.isfile(lockfilepath) wfd = lfd.open(write=True) assert lfd._fd is wfd assert os.path.isfile(lockfilepath) # write data and fail os.write(wfd, new_data.encode("ascii")) lfd.rollback() assert lfd._fd is None self._cmp_contents(my_file, orig_data) assert not os.path.isfile(lockfilepath) # additional call doesn't fail lfd.commit() lfd.rollback() # test reading lfd = LockedFD(my_file) rfd = lfd.open(write=False) assert os.read(rfd, len(orig_data)) == orig_data.encode("ascii") assert os.path.isfile(lockfilepath) # deletion rolls back del(lfd) assert not os.path.isfile(lockfilepath) # write data - concurrently lfd = LockedFD(my_file) olfd = LockedFD(my_file) assert not os.path.isfile(lockfilepath) wfdstream = lfd.open(write=True, stream=True) # this time as stream assert os.path.isfile(lockfilepath) # another one fails self.assertRaises(IOError, olfd.open) wfdstream.write(new_data.encode("ascii")) lfd.commit() assert not os.path.isfile(lockfilepath) self._cmp_contents(my_file, new_data) # could test automatic _end_writing on destruction finally: os.remove(my_file) # END final cleanup # try non-existing file for reading lfd = LockedFD(tempfile.mktemp()) try: lfd.open(write=False) except OSError: assert not os.path.exists(lfd._lockfilepath()) else: self.fail("expected OSError") # END handle exceptions |
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