def test_reverse_readlines(create_file, line_pattern):
# Given
no_lines = 10000
lines = [line_pattern.format(n=i).encode('utf-8') for i in list(range(0, no_lines))]
filename = create_file(filename='samplefile.log', lines=lines)
expected = [line_pattern.format(n=no_lines - i - 1) for i in list(range(0, no_lines))]
for i, v in enumerate(expected):
if not isinstance(v, text_type):
expected[i] = text_type(v, errors='replace')
# When
actual = list(sut.reverse_readlines(filename, block_size=1024))
# Then
assert expected == actual
def test_reverse_readlines(create_file, line_pattern):
# Given
no_lines = 10000
filename = create_file(
filename='samplefile.log',
lines=[line_pattern.format(n=i) for i in range(0, no_lines)])
expected = [
line_pattern.format(n=no_lines - i - 1) for i in range(0, no_lines)
]
# When
actual = list(sut.reverse_readlines(filename, buf_size=1024))
# Then
assert expected == actual
def test_reverse_readlines(create_file, line_pattern):
# Given
no_lines = 10000
lines = [line_pattern.format(n=i).encode('utf-8') for i in list(range(0, no_lines))]
filename = create_file(filename='samplefile.log', lines=lines)
expected = [line_pattern.format(n=no_lines - i - 1) for i in list(range(0, no_lines))]
for i, v in enumerate(expected):
if not isinstance(v, text_type):
expected[i] = text_type(v, errors='replace')
# When
actual = list(sut.reverse_readlines(filename, block_size=1024))
# Then
assert expected == actual