def test_find_context_multiple_times(diff_processor):
context = [
('unmod', 'line04\n'),
('unmod', 'line05\n'),
('unmod', 'line06\n'),
('add', 'line06a add line\n'),
('unmod', 'line07\n'),
('unmod', 'line08\n'),
('unmod', 'line09\n'),
]
found_line = diff_processor.find_context('file.txt', context, offset=3)
assert found_line == [
diffs.DiffLineNumber(old=None, new=7),
diffs.DiffLineNumber(old=None, new=49),
]
def test_find_context_end_of_chunk(diff_processor):
context_of_last_line = [
('unmod', 'line10\n'),
('unmod', 'line11\n'),
('unmod', 'line12\n'),
('unmod', 'line13\n'),
]
found_line = diff_processor.find_context(
'file.txt', context_of_last_line, offset=3)
assert found_line == [diffs.DiffLineNumber(old=13, new=14)]
def test_find_context_beginning_of_chunk(diff_processor):
context_of_first_line = [
('unmod', 'line02\n'),
('unmod', 'line03\n'),
('unmod', 'line04\n'),
('unmod', 'line05\n'),
]
found_line = diff_processor.find_context(
'file.txt', context_of_first_line, offset=0)
assert found_line == [diffs.DiffLineNumber(old=2, new=2)]
def test_context_of_an_incomplete_hunk_in_the_beginning(diff_processor):
context = diff_processor.get_context_of_line(
path='file.txt', diff_line=diffs.DiffLineNumber(old=None, new=2))
expected_context = [
('unmod', 'line01\n'),
('add', 'line01a Add line after line01\n'),
('unmod', 'line02\n'),
('unmod', 'line03\n'),
('unmod', 'line04\n'),
]
assert context == expected_context
def test_context_of_an_incomplete_hunk_in_the_end(diff_processor):
context = diff_processor.get_context_of_line(
path='file.txt', diff_line=diffs.DiffLineNumber(old=None, new=80))
expected_context = [
('unmod', 'line36\n'),
('unmod', 'line37\n'),
('unmod', 'line38\n'),
('add', 'line38a Add line after line38\n'),
('unmod', 'line39\n'),
]
assert context == expected_context
def _parse_comment_line_number(line_no):
"""
Parses line numbers of the form "(o|n)\d+" and returns them in a tuple.
"""
old_line = None
new_line = None
if line_no.startswith('o'):
old_line = int(line_no[1:])
elif line_no.startswith('n'):
new_line = int(line_no[1:])
else:
raise ValueError("Comment lines have to start with either 'o' or 'n'.")
return diffs.DiffLineNumber(old_line, new_line)
def test_context_of_an_invisible_line_end_of_hunk(diff_processor):
# Note: The caller has to pass in a diff which is suitable to satisfy
# its requirements. This test just ensures that we see a sane behavior.
context = diff_processor.get_context_of_line(
path='file.txt', diff_line=diffs.DiffLineNumber(old=12, new=None))
expected_context = [
('unmod', 'line09\n'),
('unmod', 'line10\n'),
('unmod', 'line11\n'),
('unmod', 'line12\n'),
('unmod', 'line13\n'),
]
assert context == expected_context
def test_context_of_a_new_line_number(diff_processor):
context = diff_processor.get_context_of_line(
path='file.txt', diff_line=diffs.DiffLineNumber(old=None, new=8))
expected_context = [
('unmod', 'line05\n'),
('unmod', 'line06\n'),
('unmod', 'line07\n'),
('add', 'line07a Add after line07\n'),
('unmod', 'line08\n'),
('unmod', 'line09\n'),
('unmod', 'line10\n'),
]
assert context == expected_context
def test_find_context_beginning_of_file(diff_processor):
context_of_first_line = [
('add', 'line01a Add line after line01\n'),
('unmod', 'line02\n'),
('unmod', 'line03\n'),
('unmod', 'line04\n'),
('unmod', 'line05\n'),
('unmod', 'line06\n'),
('unmod', 'line07\n'),
]
found_line = diff_processor.find_context(
'file.txt', context_of_first_line, offset=3)
assert found_line == [diffs.DiffLineNumber(old=4, new=5)]
def test_find_context_with_full_context(diff_processor):
context_of_line_7 = [
('unmod', 'line05\n'),
('unmod', 'line06\n'),
('unmod', 'line07\n'),
('add', 'line07a Add after line07\n'),
('unmod', 'line08\n'),
('unmod', 'line09\n'),
('unmod', 'line10\n'),
]
found_line = diff_processor.find_context(
'file.txt', context_of_line_7, offset=3)
assert found_line == [diffs.DiffLineNumber(old=None, new=8)]
def test_context_of_new_and_old_line_number_raises(diff_processor):
with pytest.raises(ValueError):
diff_processor.get_context_of_line(
path='file.txt', diff_line=diffs.DiffLineNumber(old=7, new=7))
def test_context_of_a_missing_file_raises(diff_processor):
with pytest.raises(diffs.FileNotInDiffException):
diff_processor.get_context_of_line(
path='not_existing_file.txt',
diff_line=diffs.DiffLineNumber(old=None, new=8))
def test_context_of_a_missing_line_raises(diff_processor):
missing_line = 20
with pytest.raises(diffs.LineNotInDiffException):
diff_processor.get_context_of_line(
path='file.txt',
diff_line=diffs.DiffLineNumber(old=None, new=missing_line))
def test_appends_newline_for_each_context_line(diff_processor):
context = diff_processor.get_context_of_line(
path='file_b', diff_line=diffs.DiffLineNumber(old=None, new=1))
assert context == [('add', 'test_content\n')]