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# Copyright (c) 2010, 2012, 2014 LOGILAB S.A. (Paris, FRANCE) <contact@logilab.fr>
# Copyright (c) 2012 Ry4an Brase <ry4an-hg@ry4an.org>
# Copyright (c) 2014 Google, Inc.
# Copyright (c) 2015 Ionel Cristian Maries <contact@ionelmc.ro>
# Copyright (c) 2016-2018 Claudiu Popa <pcmanticore@gmail.com>
# Copyright (c) 2016 Derek Gustafson <degustaf@gmail.com>
# Copyright (c) 2018 Scott Worley <scottworley@scottworley.com>
# Copyright (c) 2018 Sushobhit <31987769+sushobhit27@users.noreply.github.com>
# Copyright (c) 2019-2020 Pierre Sassoulas <pierre.sassoulas@gmail.com>
# Copyright (c) 2019 Ashley Whetter <ashley@awhetter.co.uk>
# Copyright (c) 2019 Taewon D. Kim <kimt33@mcmaster.ca>
# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
# For details: https://github.com/PyCQA/pylint/blob/master/COPYING
from contextlib import redirect_stdout
from io import StringIO
from pathlib import Path
import pytest
from pylint.checkers import similar
INPUT = Path(__file__).parent / ".." / "input"
SIMILAR1 = str(INPUT / "similar1")
SIMILAR2 = str(INPUT / "similar2")
MULTILINE = str(INPUT / "multiline-import")
HIDE_CODE_WITH_IMPORTS = str(INPUT / "hide_code_with_imports.py")
def test_ignore_comments():
output = StringIO()
with redirect_stdout(output), pytest.raises(SystemExit) as ex:
similar.Run(["--ignore-comments", SIMILAR1, SIMILAR2])
assert ex.value.code == 0
assert (
output.getvalue().strip()
== (
"""
10 similar lines in 2 files
==%s:0
==%s:0
import one
from two import two
three
four
five
six
seven
eight
nine
''' ten
TOTAL lines=60 duplicates=10 percent=16.67
"""
% (SIMILAR1, SIMILAR2)
).strip()
)
def test_ignore_docsrings():
output = StringIO()
with redirect_stdout(output), pytest.raises(SystemExit) as ex:
similar.Run(["--ignore-docstrings", SIMILAR1, SIMILAR2])
assert ex.value.code == 0
assert (
output.getvalue().strip()
== (
"""
8 similar lines in 2 files
==%s:6
==%s:6
seven
eight
nine
''' ten
ELEVEN
twelve '''
thirteen
fourteen
5 similar lines in 2 files
==%s:0
==%s:0
import one
from two import two
three
four
five
TOTAL lines=60 duplicates=13 percent=21.67
"""
% ((SIMILAR1, SIMILAR2) * 2)
).strip()
)
def test_ignore_imports():
output = StringIO()
with redirect_stdout(output), pytest.raises(SystemExit) as ex:
similar.Run(["--ignore-imports", SIMILAR1, SIMILAR2])
assert ex.value.code == 0
assert (
output.getvalue().strip()
== """
TOTAL lines=60 duplicates=0 percent=0.00
""".strip()
)
def test_multiline_imports():
output = StringIO()
with redirect_stdout(output), pytest.raises(SystemExit) as ex:
similar.Run([MULTILINE, MULTILINE])
assert ex.value.code == 0
assert (
output.getvalue().strip()
== (
"""
8 similar lines in 2 files
==%s:0
==%s:0
from foo import (
bar,
baz,
quux,
quuux,
quuuux,
quuuuux,
)
TOTAL lines=16 duplicates=8 percent=50.00
"""
% (MULTILINE, MULTILINE)
).strip()
)
def test_ignore_multiline_imports():
output = StringIO()
with redirect_stdout(output), pytest.raises(SystemExit) as ex:
similar.Run(["--ignore-imports", MULTILINE, MULTILINE])
assert ex.value.code == 0
assert (
output.getvalue().strip()
== """
TOTAL lines=16 duplicates=0 percent=0.00
""".strip()
)
def test_no_hide_code_with_imports():
output = StringIO()
with redirect_stdout(output), pytest.raises(SystemExit) as ex:
similar.Run(["--ignore-imports"] + 2 * [HIDE_CODE_WITH_IMPORTS])
assert ex.value.code == 0
assert "TOTAL lines=32 duplicates=16 percent=50.00" in output.getvalue()
def test_ignore_nothing():
output = StringIO()
with redirect_stdout(output), pytest.raises(SystemExit) as ex:
similar.Run([SIMILAR1, SIMILAR2])
assert ex.value.code == 0
assert (
output.getvalue().strip()
== (
"""
5 similar lines in 2 files
==%s:0
==%s:0
import one
from two import two
three
four
five
TOTAL lines=60 duplicates=5 percent=8.33
"""
% (SIMILAR1, SIMILAR2)
).strip()
)
def test_help():
output = StringIO()
with redirect_stdout(output):
try:
similar.Run(["--help"])
except SystemExit as ex:
assert ex.code == 0
else:
pytest.fail("not system exit")
def test_no_args():
output = StringIO()
with redirect_stdout(output):
try:
similar.Run([])
except SystemExit as ex:
assert ex.code == 1
else:
pytest.fail("not system exit")
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