def test_readlines_nobackup(tmpdir):
assert pylistdir(tmpdir) == []
p = tmpdir.join("file.txt")
p.write(TEXT)
with InPlace(str(p)) as fp:
assert fp.readlines() == TEXT.splitlines(True)
assert pylistdir(tmpdir) == ["file.txt"]
assert p.read() == ""
def test_writelines_backup(tmpdir):
assert pylistdir(tmpdir) == []
p = tmpdir.join("file.txt")
p.write("")
bkp = tmpdir.join("backup.txt")
with InPlace(str(p), backup=str(bkp)) as fp:
fp.writelines(TEXT.splitlines(True))
assert pylistdir(tmpdir) == ["backup.txt", "file.txt"]
assert bkp.read() == ""
assert p.read() == TEXT