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import unittest
import sys
from contextlib import contextmanager
from os import path
sys.path.append(path.abspath(path.join(path.dirname(__file__),
'..', '..', 'tools')))
try:
from StringIO import StringIO
except ImportError:
from io import StringIO
from checkimports import is_valid
@contextmanager
def captured_output():
tmp_out, tmp_err = StringIO(), StringIO()
old_out, old_err = sys.stdout, sys.stderr
try:
sys.stdout, sys.stderr = tmp_out, tmp_err
yield sys.stdout, sys.stderr
finally:
sys.stdout, sys.stderr = old_out, old_err
tmp_out.close()
tmp_err.close()
class CheckImportsTest(unittest.TestCase):
fixturesDir = path.join(path.dirname(__file__), '..', '..',
'test', 'fixtures', 'tools', 'checkimports')
def test_unused_and_unsorted(self):
with captured_output() as (out, err):
self.assertEqual(is_valid(path.join(self.fixturesDir, 'invalid.cc')),
False)
output = out.getvalue()
self.assertIn('does not use "Local"', output);
self.assertIn('using statements aren\'t sorted in', output);
self.assertIn('Line 1: Actual: v8::MaybeLocal, Expected: v8::Array',
output);
self.assertIn('Line 2: Actual: v8::Array, Expected: v8::Local',
output);
self.assertIn('Line 3: Actual: v8::Local, Expected: v8::MaybeLocal',
output);
def test_unused_complex(self):
with captured_output() as (out, err):
self.assertEqual(is_valid(path.join(self.fixturesDir, 'maybe.cc')),
False)
output = out.getvalue()
self.assertIn('does not use "Local"', output);
def test_unused_simple(self):
with captured_output() as (out, err):
self.assertEqual(is_valid(path.join(self.fixturesDir, 'unused.cc')),
False)
output = out.getvalue()
self.assertIn('does not use "Context"', output);
def test_unsorted(self):
with captured_output() as (out, err):
self.assertEqual(is_valid(path.join(self.fixturesDir, 'unsorted.cc')),
False)
output = out.getvalue()
self.assertIn('using statements aren\'t sorted in', output);
self.assertIn('Line 1: Actual: v8::MaybeLocal, Expected: v8::Array',
output);
self.assertIn('Line 2: Actual: v8::Array, Expected: v8::MaybeLocal',
output);
def test_valid(self):
with captured_output() as (out, err):
self.assertEqual(is_valid(path.join(self.fixturesDir, 'valid.cc')),
True)
output = out.getvalue()
self.assertEqual(output, '');
if __name__ == '__main__':
unittest.main()
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