mirror of
https://github.com/adrienverge/yamllint.git
synced 2024-11-22 07:36:25 -06:00
Add RunContext helper for cli tests
Single context manager that includes exit code and output streams. Use new RunContext throughout test_cli. Largely non-functional change, saving some repetition of setup. Also improve some failures by bundling multiple assertions into one.
This commit is contained in:
Martin Packman
Adrien Vergé
parent
044c7f0248
commit
5b049e4229
@ -32,6 +32,29 @@ from yamllint import cli
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from yamllint import config
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class RunContext(object):
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"""Context manager for ``cli.run()`` to capture exit code and streams."""
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def __init__(self, case):
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self.stdout = self.stderr = None
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self._raises_ctx = case.assertRaises(SystemExit)
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def __enter__(self):
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self._raises_ctx.__enter__()
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sys.stdout = self.outstream = StringIO()
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sys.stderr = self.errstream = StringIO()
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return self
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def __exit__(self, *exc_info):
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self.stdout, sys.stdout = self.outstream.getvalue(), sys.__stdout__
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self.stderr, sys.stderr = self.errstream.getvalue(), sys.__stderr__
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return self._raises_ctx.__exit__(*exc_info)
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@property
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def returncode(self):
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return self._raises_ctx.exception.code
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class CommandLineTestCase(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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@ -174,201 +197,144 @@ class CommandLineTestCase(unittest.TestCase):
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)
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def test_run_with_bad_arguments(self):
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sys.stdout, sys.stderr = StringIO(), StringIO()
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with self.assertRaises(SystemExit) as ctx:
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with RunContext(self) as ctx:
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cli.run(())
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self.assertNotEqual(ctx.returncode, 0)
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self.assertEqual(ctx.stdout, '')
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self.assertRegexpMatches(ctx.stderr, r'^usage')
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self.assertNotEqual(ctx.exception.code, 0)
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out, err = sys.stdout.getvalue(), sys.stderr.getvalue()
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self.assertEqual(out, '')
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self.assertRegexpMatches(err, r'^usage')
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sys.stdout, sys.stderr = StringIO(), StringIO()
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with self.assertRaises(SystemExit) as ctx:
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with RunContext(self) as ctx:
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cli.run(('--unknown-arg', ))
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self.assertNotEqual(ctx.returncode, 0)
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self.assertEqual(ctx.stdout, '')
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self.assertRegexpMatches(ctx.stderr, r'^usage')
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self.assertNotEqual(ctx.exception.code, 0)
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out, err = sys.stdout.getvalue(), sys.stderr.getvalue()
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self.assertEqual(out, '')
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self.assertRegexpMatches(err, r'^usage')
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sys.stdout, sys.stderr = StringIO(), StringIO()
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with self.assertRaises(SystemExit) as ctx:
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with RunContext(self) as ctx:
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cli.run(('-c', './conf.yaml', '-d', 'relaxed', 'file'))
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self.assertNotEqual(ctx.exception.code, 0)
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out, err = sys.stdout.getvalue(), sys.stderr.getvalue()
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self.assertEqual(out, '')
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self.assertNotEqual(ctx.returncode, 0)
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self.assertEqual(ctx.stdout, '')
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self.assertRegexpMatches(
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err.splitlines()[-1],
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ctx.stderr.splitlines()[-1],
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r'^yamllint: error: argument -d\/--config-data: '
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r'not allowed with argument -c\/--config-file$'
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)
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# checks if reading from stdin and files are mutually exclusive
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sys.stdout, sys.stderr = StringIO(), StringIO()
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with self.assertRaises(SystemExit) as ctx:
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with RunContext(self) as ctx:
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cli.run(('-', 'file'))
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self.assertNotEqual(ctx.exception.code, 0)
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out, err = sys.stdout.getvalue(), sys.stderr.getvalue()
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self.assertEqual(out, '')
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self.assertRegexpMatches(err, r'^usage')
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self.assertNotEqual(ctx.returncode, 0)
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self.assertEqual(ctx.stdout, '')
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self.assertRegexpMatches(ctx.stderr, r'^usage')
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def test_run_with_bad_config(self):
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sys.stdout, sys.stderr = StringIO(), StringIO()
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with self.assertRaises(SystemExit) as ctx:
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with RunContext(self) as ctx:
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cli.run(('-d', 'rules: {a: b}', 'file'))
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self.assertEqual(ctx.exception.code, -1)
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out, err = sys.stdout.getvalue(), sys.stderr.getvalue()
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self.assertEqual(out, '')
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self.assertRegexpMatches(err, r'^invalid config: no such rule')
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self.assertEqual(ctx.returncode, -1)
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self.assertEqual(ctx.stdout, '')
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self.assertRegexpMatches(ctx.stderr, r'^invalid config: no such rule')
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def test_run_with_empty_config(self):
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sys.stdout, sys.stderr = StringIO(), StringIO()
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with self.assertRaises(SystemExit) as ctx:
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with RunContext(self) as ctx:
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cli.run(('-d', '', 'file'))
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self.assertEqual(ctx.exception.code, -1)
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out, err = sys.stdout.getvalue(), sys.stderr.getvalue()
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self.assertEqual(out, '')
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self.assertRegexpMatches(err, r'^invalid config: not a dict')
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self.assertEqual(ctx.returncode, -1)
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self.assertEqual(ctx.stdout, '')
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self.assertRegexpMatches(ctx.stderr, r'^invalid config: not a dict')
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def test_run_with_config_file(self):
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with open(os.path.join(self.wd, 'config'), 'w') as f:
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f.write('rules: {trailing-spaces: disable}')
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with self.assertRaises(SystemExit) as ctx:
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with RunContext(self) as ctx:
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cli.run(('-c', f.name, os.path.join(self.wd, 'a.yaml')))
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self.assertEqual(ctx.exception.code, 0)
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self.assertEqual(ctx.returncode, 0)
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with open(os.path.join(self.wd, 'config'), 'w') as f:
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f.write('rules: {trailing-spaces: enable}')
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with self.assertRaises(SystemExit) as ctx:
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with RunContext(self) as ctx:
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cli.run(('-c', f.name, os.path.join(self.wd, 'a.yaml')))
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self.assertEqual(ctx.exception.code, 1)
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self.assertEqual(ctx.returncode, 1)
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def test_run_with_user_global_config_file(self):
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home = os.path.join(self.wd, 'fake-home')
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os.mkdir(home)
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dir = os.path.join(home, '.config')
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os.mkdir(dir)
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dir = os.path.join(dir, 'yamllint')
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os.mkdir(dir)
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dir = os.path.join(home, '.config', 'yamllint')
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os.makedirs(dir)
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config = os.path.join(dir, 'config')
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temp = os.environ['HOME']
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self.addCleanup(os.environ.update, HOME=os.environ['HOME'])
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os.environ['HOME'] = home
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with open(config, 'w') as f:
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f.write('rules: {trailing-spaces: disable}')
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with self.assertRaises(SystemExit) as ctx:
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with RunContext(self) as ctx:
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cli.run((os.path.join(self.wd, 'a.yaml'), ))
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self.assertEqual(ctx.exception.code, 0)
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self.assertEqual(ctx.returncode, 0)
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with open(config, 'w') as f:
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f.write('rules: {trailing-spaces: enable}')
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with self.assertRaises(SystemExit) as ctx:
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with RunContext(self) as ctx:
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cli.run((os.path.join(self.wd, 'a.yaml'), ))
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self.assertEqual(ctx.exception.code, 1)
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os.environ['HOME'] = temp
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self.assertEqual(ctx.returncode, 1)
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def test_run_version(self):
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sys.stdout, sys.stderr = StringIO(), StringIO()
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with self.assertRaises(SystemExit) as ctx:
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with RunContext(self) as ctx:
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cli.run(('--version', ))
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self.assertEqual(ctx.exception.code, 0)
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out, err = sys.stdout.getvalue(), sys.stderr.getvalue()
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self.assertRegexpMatches(out + err, r'yamllint \d+\.\d+')
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self.assertEqual(ctx.returncode, 0)
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self.assertRegexpMatches(ctx.stdout + ctx.stderr, r'yamllint \d+\.\d+')
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def test_run_non_existing_file(self):
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file = os.path.join(self.wd, 'i-do-not-exist.yaml')
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path = os.path.join(self.wd, 'i-do-not-exist.yaml')
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sys.stdout, sys.stderr = StringIO(), StringIO()
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with self.assertRaises(SystemExit) as ctx:
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cli.run(('-f', 'parsable', file))
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self.assertEqual(ctx.exception.code, -1)
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out, err = sys.stdout.getvalue(), sys.stderr.getvalue()
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self.assertEqual(out, '')
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self.assertRegexpMatches(err, r'No such file or directory')
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with RunContext(self) as ctx:
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cli.run(('-f', 'parsable', path))
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self.assertEqual(ctx.returncode, -1)
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self.assertEqual(ctx.stdout, '')
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self.assertRegexpMatches(ctx.stderr, r'No such file or directory')
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def test_run_one_problem_file(self):
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file = os.path.join(self.wd, 'a.yaml')
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path = os.path.join(self.wd, 'a.yaml')
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sys.stdout, sys.stderr = StringIO(), StringIO()
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with self.assertRaises(SystemExit) as ctx:
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cli.run(('-f', 'parsable', file))
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self.assertEqual(ctx.exception.code, 1)
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out, err = sys.stdout.getvalue(), sys.stderr.getvalue()
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self.assertEqual(out, (
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with RunContext(self) as ctx:
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cli.run(('-f', 'parsable', path))
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self.assertEqual(ctx.returncode, 1)
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self.assertEqual(ctx.stdout, (
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'%s:2:4: [error] trailing spaces (trailing-spaces)\n'
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'%s:3:4: [error] no new line character at the end of file '
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'(new-line-at-end-of-file)\n') % (file, file))
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self.assertEqual(err, '')
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'(new-line-at-end-of-file)\n' % (path, path)))
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self.assertEqual(ctx.stderr, '')
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def test_run_one_warning(self):
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file = os.path.join(self.wd, 'warn.yaml')
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path = os.path.join(self.wd, 'warn.yaml')
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sys.stdout, sys.stderr = StringIO(), StringIO()
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with self.assertRaises(SystemExit) as ctx:
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cli.run(('-f', 'parsable', file))
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self.assertEqual(ctx.exception.code, 0)
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with RunContext(self) as ctx:
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cli.run(('-f', 'parsable', path))
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self.assertEqual(ctx.returncode, 0)
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def test_run_warning_in_strict_mode(self):
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file = os.path.join(self.wd, 'warn.yaml')
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path = os.path.join(self.wd, 'warn.yaml')
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sys.stdout, sys.stderr = StringIO(), StringIO()
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with self.assertRaises(SystemExit) as ctx:
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cli.run(('-f', 'parsable', '--strict', file))
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self.assertEqual(ctx.exception.code, 2)
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with RunContext(self) as ctx:
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cli.run(('-f', 'parsable', '--strict', path))
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self.assertEqual(ctx.returncode, 2)
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def test_run_one_ok_file(self):
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file = os.path.join(self.wd, 'sub', 'ok.yaml')
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path = os.path.join(self.wd, 'sub', 'ok.yaml')
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sys.stdout, sys.stderr = StringIO(), StringIO()
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with self.assertRaises(SystemExit) as ctx:
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cli.run(('-f', 'parsable', file))
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self.assertEqual(ctx.exception.code, 0)
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out, err = sys.stdout.getvalue(), sys.stderr.getvalue()
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self.assertEqual(out, '')
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self.assertEqual(err, '')
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with RunContext(self) as ctx:
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cli.run(('-f', 'parsable', path))
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self.assertEqual((ctx.returncode, ctx.stdout, ctx.stderr), (0, '', ''))
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def test_run_empty_file(self):
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file = os.path.join(self.wd, 'empty.yml')
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path = os.path.join(self.wd, 'empty.yml')
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sys.stdout, sys.stderr = StringIO(), StringIO()
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with self.assertRaises(SystemExit) as ctx:
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cli.run(('-f', 'parsable', file))
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self.assertEqual(ctx.exception.code, 0)
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out, err = sys.stdout.getvalue(), sys.stderr.getvalue()
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self.assertEqual(out, '')
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self.assertEqual(err, '')
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with RunContext(self) as ctx:
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cli.run(('-f', 'parsable', path))
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self.assertEqual((ctx.returncode, ctx.stdout, ctx.stderr), (0, '', ''))
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def test_run_non_ascii_file(self):
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file = os.path.join(self.wd, 'non-ascii', 'éçäγλνπ¥', 'utf-8')
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path = os.path.join(self.wd, 'non-ascii', 'éçäγλνπ¥', 'utf-8')
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# Make sure the default localization conditions on this "system"
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# support UTF-8 encoding.
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@ -377,63 +343,46 @@ class CommandLineTestCase(unittest.TestCase):
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locale.setlocale(locale.LC_ALL, 'C.UTF-8')
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except locale.Error:
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locale.setlocale(locale.LC_ALL, 'en_US.UTF-8')
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self.addCleanup(locale.setlocale, locale.LC_ALL, loc)
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sys.stdout, sys.stderr = StringIO(), StringIO()
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with self.assertRaises(SystemExit) as ctx:
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cli.run(('-f', 'parsable', file))
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locale.setlocale(locale.LC_ALL, loc)
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self.assertEqual(ctx.exception.code, 0)
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out, err = sys.stdout.getvalue(), sys.stderr.getvalue()
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self.assertEqual(out, '')
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self.assertEqual(err, '')
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with RunContext(self) as ctx:
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cli.run(('-f', 'parsable', path))
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self.assertEqual((ctx.returncode, ctx.stdout, ctx.stderr), (0, '', ''))
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def test_run_multiple_files(self):
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items = [os.path.join(self.wd, 'empty.yml'),
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os.path.join(self.wd, 's')]
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file = items[1] + '/s/s/s/s/s/s/s/s/s/s/s/s/s/s/file.yaml'
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path = items[1] + '/s/s/s/s/s/s/s/s/s/s/s/s/s/s/file.yaml'
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sys.stdout, sys.stderr = StringIO(), StringIO()
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with self.assertRaises(SystemExit) as ctx:
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with RunContext(self) as ctx:
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cli.run(['-f', 'parsable'] + items)
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self.assertEqual(ctx.exception.code, 1)
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out, err = sys.stdout.getvalue(), sys.stderr.getvalue()
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self.assertEqual(out, (
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self.assertEqual((ctx.returncode, ctx.stderr), (1, ''))
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self.assertEqual(ctx.stdout, (
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'%s:3:1: [error] duplication of key "key" in mapping '
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'(key-duplicates)\n') % file)
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self.assertEqual(err, '')
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'(key-duplicates)\n') % path)
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def test_run_piped_output_nocolor(self):
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file = os.path.join(self.wd, 'a.yaml')
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path = os.path.join(self.wd, 'a.yaml')
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sys.stdout, sys.stderr = StringIO(), StringIO()
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with self.assertRaises(SystemExit) as ctx:
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cli.run((file, ))
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self.assertEqual(ctx.exception.code, 1)
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out, err = sys.stdout.getvalue(), sys.stderr.getvalue()
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self.assertEqual(out, (
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with RunContext(self) as ctx:
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cli.run((path, ))
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self.assertEqual((ctx.returncode, ctx.stderr), (1, ''))
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self.assertEqual(ctx.stdout, (
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'%s\n'
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' 2:4 error trailing spaces (trailing-spaces)\n'
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' 3:4 error no new line character at the end of file '
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'(new-line-at-end-of-file)\n'
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'\n' % file))
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self.assertEqual(err, '')
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'\n' % path))
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def test_run_default_format_output_in_tty(self):
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file = os.path.join(self.wd, 'a.yaml')
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path = os.path.join(self.wd, 'a.yaml')
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# Create a pseudo-TTY and redirect stdout to it
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master, slave = pty.openpty()
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sys.stdout = sys.stderr = os.fdopen(slave, 'w')
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with self.assertRaises(SystemExit) as ctx:
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cli.run((file, ))
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cli.run((path, ))
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sys.stdout.flush()
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self.assertEqual(ctx.exception.code, 1)
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@ -456,114 +405,91 @@ class CommandLineTestCase(unittest.TestCase):
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' \033[2m3:4\033[0m \033[31merror\033[0m '
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'no new line character at the end of file '
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'\033[2m(new-line-at-end-of-file)\033[0m\n'
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'\n' % file))
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'\n' % path))
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def test_run_default_format_output_without_tty(self):
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file = os.path.join(self.wd, 'a.yaml')
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path = os.path.join(self.wd, 'a.yaml')
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sys.stdout, sys.stderr = StringIO(), StringIO()
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with self.assertRaises(SystemExit) as ctx:
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cli.run((file, ))
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self.assertEqual(ctx.exception.code, 1)
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out, err = sys.stdout.getvalue(), sys.stderr.getvalue()
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self.assertEqual(out, (
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with RunContext(self) as ctx:
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cli.run((path, ))
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expected_out = (
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'%s\n'
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' 2:4 error trailing spaces (trailing-spaces)\n'
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' 3:4 error no new line character at the end of file '
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'(new-line-at-end-of-file)\n'
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'\n' % file))
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self.assertEqual(err, '')
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'\n' % path)
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self.assertEqual(
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(ctx.returncode, ctx.stdout, ctx.stderr), (1, expected_out, ''))
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def test_run_auto_output_without_tty_output(self):
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file = os.path.join(self.wd, 'a.yaml')
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path = os.path.join(self.wd, 'a.yaml')
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sys.stdout, sys.stderr = StringIO(), StringIO()
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with self.assertRaises(SystemExit) as ctx:
|
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cli.run((file, '--format', 'auto'))
|
||||
|
||||
self.assertEqual(ctx.exception.code, 1)
|
||||
|
||||
out, err = sys.stdout.getvalue(), sys.stderr.getvalue()
|
||||
self.assertEqual(out, (
|
||||
with RunContext(self) as ctx:
|
||||
cli.run((path, '--format', 'auto'))
|
||||
expected_out = (
|
||||
'%s\n'
|
||||
' 2:4 error trailing spaces (trailing-spaces)\n'
|
||||
' 3:4 error no new line character at the end of file '
|
||||
'(new-line-at-end-of-file)\n'
|
||||
'\n' % file))
|
||||
self.assertEqual(err, '')
|
||||
'\n' % path)
|
||||
self.assertEqual(
|
||||
(ctx.returncode, ctx.stdout, ctx.stderr), (1, expected_out, ''))
|
||||
|
||||
def test_run_format_colored(self):
|
||||
file = os.path.join(self.wd, 'a.yaml')
|
||||
path = os.path.join(self.wd, 'a.yaml')
|
||||
|
||||
sys.stdout, sys.stderr = StringIO(), StringIO()
|
||||
with self.assertRaises(SystemExit) as ctx:
|
||||
cli.run((file, '--format', 'colored'))
|
||||
|
||||
self.assertEqual(ctx.exception.code, 1)
|
||||
|
||||
out, err = sys.stdout.getvalue(), sys.stderr.getvalue()
|
||||
self.assertEqual(out, (
|
||||
with RunContext(self) as ctx:
|
||||
cli.run((path, '--format', 'colored'))
|
||||
expected_out = (
|
||||
'\033[4m%s\033[0m\n'
|
||||
' \033[2m2:4\033[0m \033[31merror\033[0m '
|
||||
'trailing spaces \033[2m(trailing-spaces)\033[0m\n'
|
||||
' \033[2m3:4\033[0m \033[31merror\033[0m '
|
||||
'no new line character at the end of file '
|
||||
'\033[2m(new-line-at-end-of-file)\033[0m\n'
|
||||
'\n' % file))
|
||||
self.assertEqual(err, '')
|
||||
'\n' % path)
|
||||
self.assertEqual(
|
||||
(ctx.returncode, ctx.stdout, ctx.stderr), (1, expected_out, ''))
|
||||
|
||||
def test_run_read_from_stdin(self):
|
||||
# prepares stdin with an invalid yaml string so that we can check
|
||||
# for its specific error, and be assured that stdin was read
|
||||
sys.stdout, sys.stderr = StringIO(), StringIO()
|
||||
self.addCleanup(setattr, sys, 'stdin', sys.__stdin__)
|
||||
sys.stdin = StringIO(
|
||||
'I am a string\n'
|
||||
'therefore: I am an error\n')
|
||||
|
||||
with self.assertRaises(SystemExit) as ctx:
|
||||
with RunContext(self) as ctx:
|
||||
cli.run(('-', '-f', 'parsable'))
|
||||
|
||||
self.assertNotEqual(ctx.exception.code, 0)
|
||||
|
||||
out, err = sys.stdout.getvalue(), sys.stderr.getvalue()
|
||||
self.assertEqual(out, (
|
||||
expected_out = (
|
||||
'stdin:2:10: [error] syntax error: '
|
||||
'mapping values are not allowed here (syntax)\n'))
|
||||
self.assertEqual(err, '')
|
||||
'mapping values are not allowed here (syntax)\n')
|
||||
self.assertEqual(
|
||||
(ctx.returncode, ctx.stdout, ctx.stderr), (1, expected_out, ''))
|
||||
|
||||
def test_run_no_warnings(self):
|
||||
file = os.path.join(self.wd, 'a.yaml')
|
||||
path = os.path.join(self.wd, 'a.yaml')
|
||||
|
||||
sys.stdout, sys.stderr = StringIO(), StringIO()
|
||||
with self.assertRaises(SystemExit) as ctx:
|
||||
cli.run((file, '--no-warnings', '-f', 'auto'))
|
||||
|
||||
self.assertEqual(ctx.exception.code, 1)
|
||||
|
||||
out, err = sys.stdout.getvalue(), sys.stderr.getvalue()
|
||||
self.assertEqual(out, (
|
||||
with RunContext(self) as ctx:
|
||||
cli.run((path, '--no-warnings', '-f', 'auto'))
|
||||
expected_out = (
|
||||
'%s\n'
|
||||
' 2:4 error trailing spaces (trailing-spaces)\n'
|
||||
' 3:4 error no new line character at the end of file '
|
||||
'(new-line-at-end-of-file)\n'
|
||||
'\n' % file))
|
||||
self.assertEqual(err, '')
|
||||
'\n' % path)
|
||||
self.assertEqual(
|
||||
(ctx.returncode, ctx.stdout, ctx.stderr), (1, expected_out, ''))
|
||||
|
||||
file = os.path.join(self.wd, 'warn.yaml')
|
||||
path = os.path.join(self.wd, 'warn.yaml')
|
||||
|
||||
sys.stdout, sys.stderr = StringIO(), StringIO()
|
||||
with self.assertRaises(SystemExit) as ctx:
|
||||
cli.run((file, '--no-warnings', '-f', 'auto'))
|
||||
|
||||
self.assertEqual(ctx.exception.code, 0)
|
||||
with RunContext(self) as ctx:
|
||||
cli.run((path, '--no-warnings', '-f', 'auto'))
|
||||
self.assertEqual(ctx.returncode, 0)
|
||||
|
||||
def test_run_no_warnings_and_strict(self):
|
||||
file = os.path.join(self.wd, 'warn.yaml')
|
||||
path = os.path.join(self.wd, 'warn.yaml')
|
||||
|
||||
sys.stdout, sys.stderr = StringIO(), StringIO()
|
||||
with self.assertRaises(SystemExit) as ctx:
|
||||
cli.run((file, '--no-warnings', '-s'))
|
||||
|
||||
self.assertEqual(ctx.exception.code, 2)
|
||||
with RunContext(self) as ctx:
|
||||
cli.run((path, '--no-warnings', '-s'))
|
||||
self.assertEqual(ctx.returncode, 2)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user