def test_quality(self):
# Patch the output of `pep8`
_mock_communicate = patch.object(Popen, 'communicate').start()
return_string = '\n' + dedent("""
../new_file.py:1:17: E231 whitespace
../new_file.py:3:13: E225 whitespace
../new_file.py:7:1: E302 blank lines
""").strip() + '\n'
_mock_communicate.return_value = ((return_string.encode('utf-8'), b''))
# Parse the report
quality = Pep8QualityReporter('pep8', [])
# Expect that the name is set
self.assertEqual(quality.name(), 'pep8')
# Measured_lines is undefined for
# a quality reporter since all lines are measured
self.assertEqual(quality.measured_lines('../new_file.py'), None)
# Expect that we get the right violations
expected_violations = [
Violation(1, 'E231 whitespace'),
Violation(3, 'E225 whitespace'),
Violation(7, 'E302 blank lines')
]
self.assertEqual(expected_violations,
quality.violations('../new_file.py'))
def test_no_python_file(self):
quality = Pep8QualityReporter('pep8', [])
file_paths = ['file1.coffee', 'subdir/file2.js']
# Expect that we get no results because no Python files
for path in file_paths:
result = quality.violations(path)
self.assertEqual(result, [])
def test_no_quality_issues_emptystring(self):
# Patch the output of `pep8`
_mock_communicate = patch.object(Popen, 'communicate').start()
_mock_communicate.return_value = (b'', b'')
# Parse the report
quality = Pep8QualityReporter('pep8', [])
self.assertEqual([], quality.violations('file1.py'))
def test_quality_error(self):
# Patch the output of `pep8`
_mock_communicate = patch.object(Popen, 'communicate').start()
_mock_communicate.return_value = (b"", b'whoops')
# Parse the report
quality = Pep8QualityReporter('pep8', [])
# Expect that the name is set
self.assertEqual(quality.name(), 'pep8')
self.assertRaises(QualityReporterError, quality.violations, 'file1.py')
def test_quality_error(self):
# Patch the output of `pep8`
_mock_communicate = patch.object(Popen, 'communicate').start()
_mock_communicate.return_value = (b"", 'whoops Ƕئ'.encode('utf-8'))
# Parse the report
quality = Pep8QualityReporter('pep8', [])
# Expect that the name is set
self.assertEqual(quality.name(), 'pep8')
with self.assertRaises(QualityReporterError) as ex:
quality.violations('file1.py')
self.assertEqual(six.text_type(ex.exception), 'whoops Ƕئ')
def test_quality_pregenerated_report(self):
# Patch the output of `pep8`
_mock_communicate = patch.object(Popen, 'communicate').start()
_mock_communicate.return_value = ('', '')
# When the user provides us with a pre-generated pep8 report
# then use that instead of calling pep8 directly.
pep8_reports = [
StringIO('\n' + dedent("""
path/to/file.py:1:17: E231 whitespace
path/to/file.py:3:13: E225 whitespace
another/file.py:7:1: E302 blank lines
""").strip() + '\n'),
StringIO('\n' + dedent(u"""
path/to/file.py:24:2: W123 \u9134\u1912
another/file.py:50:1: E302 blank lines
""").strip() + '\n'),
]
# Parse the report
quality = Pep8QualityReporter('pep8', pep8_reports)
# Measured_lines is undefined for
# a quality reporter since all lines are measured
self.assertEqual(quality.measured_lines('path/to/file.py'), None)
# Expect that we get the right violations
expected_violations = [
Violation(1, u'E231 whitespace'),
Violation(3, u'E225 whitespace'),
Violation(24, u'W123 \u9134\u1912')
]
# We're not guaranteed that the violations are returned
# in any particular order.
actual_violations = quality.violations('path/to/file.py')
self.assertEqual(len(actual_violations), len(expected_violations))
for expected in expected_violations:
self.assertIn(expected, actual_violations)
def test_quality_reporter(self, mock_stderr):
reporter = Pep8QualityReporter('pep8', [])
with self.assertRaises(OSError):
reporter.violations("path/to/file.py")
self.assertEqual(mock_stderr.getvalue(), "pep8 path/to/file.py")
def test_no_such_file(self):
quality = Pep8QualityReporter('pep8', [])
# Expect that we get no results
result = quality.violations('')
self.assertEqual(result, [])