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"""Tests for diff module."""
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import os
import subprocess
import pytest
from ansible_test._internal.util import (
to_text,
to_bytes,
)
from ansible_test._internal.diff import (
parse_diff,
FileDiff,
)
def get_diff(base, head=None):
"""Return a git diff between the base and head revision.
:type base: str
:type head: str | None
:rtype: list[str]
"""
if not head or head == 'HEAD':
head = to_text(subprocess.check_output(['git', 'rev-parse', 'HEAD'])).strip()
cache = '/tmp/git-diff-cache-%s-%s.log' % (base, head)
if os.path.exists(cache):
with open(cache, 'rb') as cache_fd:
lines = to_text(cache_fd.read()).splitlines()
else:
lines = to_text(subprocess.check_output(['git', 'diff', base, head]), errors='replace').splitlines()
with open(cache, 'wb') as cache_fd:
cache_fd.write(to_bytes('\n'.join(lines)))
assert lines
return lines
def get_parsed_diff(base, head=None):
"""Return a parsed git diff between the base and head revision.
:type base: str
:type head: str | None
:rtype: list[FileDiff]
"""
lines = get_diff(base, head)
items = parse_diff(lines)
assert items
for item in items:
assert item.headers
assert item.is_complete
item.old.format_lines()
item.new.format_lines()
for line_range in item.old.ranges:
assert line_range[1] >= line_range[0] > 0
for line_range in item.new.ranges:
assert line_range[1] >= line_range[0] > 0
return items
RANGES_TO_TEST = (
('f31421576b00f0b167cdbe61217c31c21a41ac02', 'HEAD'),
('b8125ac1a61f2c7d1de821c78c884560071895f1', '32146acf4e43e6f95f54d9179bf01f0df9814217')
)
@pytest.mark.parametrize("base, head", RANGES_TO_TEST)
def test_parse_diff(base, head):
"""Integration test to verify parsing of ansible/ansible history."""
get_parsed_diff(base, head)
def test_parse_delete():
"""Integration test to verify parsing of a deleted file."""
commit = 'ee17b914554861470b382e9e80a8e934063e0860'
items = get_parsed_diff(commit + '~', commit)
deletes = [item for item in items if not item.new.exists]
assert len(deletes) == 1
assert deletes[0].old.path == 'lib/ansible/plugins/connection/nspawn.py'
assert deletes[0].new.path == 'lib/ansible/plugins/connection/nspawn.py'
def test_parse_rename():
"""Integration test to verify parsing of renamed files."""
commit = '16a39639f568f4dd5cb233df2d0631bdab3a05e9'
items = get_parsed_diff(commit + '~', commit)
renames = [item for item in items if item.old.path != item.new.path and item.old.exists and item.new.exists]
assert len(renames) == 2
assert renames[0].old.path == 'test/integration/targets/eos_eapi/tests/cli/badtransport.yaml'
assert renames[0].new.path == 'test/integration/targets/eos_eapi/tests/cli/badtransport.1'
assert renames[1].old.path == 'test/integration/targets/eos_eapi/tests/cli/zzz_reset.yaml'
assert renames[1].new.path == 'test/integration/targets/eos_eapi/tests/cli/zzz_reset.1'
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