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# Copyright 2018 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import subprocess
import unittest
from unittest import mock
import six
from core import cli_helpers
from telemetry import decorators
BUILTIN_MODULE = '__builtin__' if six.PY2 else 'builtins'
class CLIHelpersTest(unittest.TestCase):
def testUnsupportedColor(self):
with self.assertRaises(AssertionError):
cli_helpers.Colored('message', 'pink')
@mock.patch(BUILTIN_MODULE + '.print')
def testPrintsInfo(self, print_mock):
cli_helpers.Info('foo {sval} {ival}', sval='s', ival=42)
print_mock.assert_called_once_with('foo s 42')
@mock.patch(BUILTIN_MODULE + '.print')
def testPrintsComment(self, print_mock):
cli_helpers.Comment('foo')
print_mock.assert_called_once_with('\033[93mfoo\033[0m')
@mock.patch(BUILTIN_MODULE + '.print')
@mock.patch('sys.exit')
def testFatal(self, sys_exit_mock, print_mock):
cli_helpers.Fatal('foo')
print_mock.assert_called_once_with('\033[91mfoo\033[0m')
sys_exit_mock.assert_called_once()
@mock.patch(BUILTIN_MODULE + '.print')
def testPrintsError(self, print_mock):
cli_helpers.Error('foo')
print_mock.assert_called_once_with('\033[91mfoo\033[0m')
@mock.patch(BUILTIN_MODULE + '.print')
def testPrintsStep(self, print_mock):
long_step_name = 'foobar' * 15
cli_helpers.Step(long_step_name)
self.assertListEqual(print_mock.call_args_list, [
mock.call('\033[92m' + ('=' * 90) + '\033[0m'),
mock.call('\033[92m' + long_step_name + '\033[0m'),
mock.call('\033[92m' + ('=' * 90) + '\033[0m'),
])
@mock.patch(BUILTIN_MODULE + '.print')
@mock.patch('core.cli_helpers.input')
# https://crbug.com/938575.
@decorators.Disabled('chromeos')
def testAskAgainOnInvalidAnswer(self, input_mock, print_mock):
input_mock.side_effect = ['foobar', 'y']
self.assertTrue(cli_helpers.Ask('Ready?'))
self.assertListEqual(print_mock.mock_calls, [
mock.call('\033[96mReady? [no/YES] \033[0m', end=' '),
mock.call('\033[91mPlease respond with "no" or "yes".\033[0m'),
mock.call('\033[96mReady? [no/YES] \033[0m', end=' ')
])
@mock.patch(BUILTIN_MODULE + '.print')
@mock.patch('core.cli_helpers.input')
# https://crbug.com/938575.
@decorators.Disabled('chromeos')
def testAskWithCustomAnswersAndDefault(self, input_mock, print_mock):
input_mock.side_effect = ['']
self.assertFalse(
cli_helpers.Ask('Ready?', {'foo': True, 'bar': False}, default='bar'))
print_mock.assert_called_once_with(
'\033[96mReady? [BAR/foo] \033[0m', end=' ')
@mock.patch('core.cli_helpers.input')
# https://crbug.com/938575.
@decorators.Disabled('chromeos')
def testAskWithCustomAnswersAndCaps(self, input_mock):
input_mock.side_effect = ['Foo/Bar/Baz']
self.assertEqual(
cli_helpers.Ask('Ready?', ["Foo/Bar/Baz", "other"]),
'Foo/Bar/Baz')
@mock.patch(BUILTIN_MODULE + '.print')
@mock.patch('core.cli_helpers.input')
# https://crbug.com/938575.
@decorators.Disabled('chromeos')
def testAskNoDefaultCustomAnswersAsList(self, input_mock, print_mock):
input_mock.side_effect = ['', 'FoO']
self.assertEqual(cli_helpers.Ask('Ready?', ['foo', 'bar']), 'foo')
self.assertListEqual(print_mock.mock_calls, [
mock.call('\033[96mReady? [foo/bar] \033[0m', end=' '),
mock.call('\033[91mPlease respond with "bar" or "foo".\033[0m'),
mock.call('\033[96mReady? [foo/bar] \033[0m', end=' ')
])
def testAskWithInvalidDefaultAnswer(self):
with self.assertRaises(ValueError):
cli_helpers.Ask('Ready?', ['foo', 'bar'], 'baz')
@mock.patch(BUILTIN_MODULE + '.print')
@mock.patch('subprocess.check_call')
@mock.patch(BUILTIN_MODULE + '.open')
@mock.patch('datetime.datetime')
def testCheckLog(
self, dt_mock, open_mock, check_call_mock, print_mock):
file_mock = mock.Mock()
open_mock.return_value.__enter__.return_value = file_mock
dt_mock.now.return_value.strftime.return_value = '_2018_12_10_16_22_11'
cli_helpers.CheckLog(
['command', 'arg with space'], '/tmp/tmpXYZ.tmp', env={'foo': 'bar'})
check_call_mock.assert_called_once_with(
['command', 'arg with space'],
stdout=file_mock,
stderr=subprocess.STDOUT,
shell=False,
env={'foo': 'bar'})
open_mock.assert_called_once_with('/tmp/tmpXYZ.tmp', 'w')
self.assertListEqual(print_mock.mock_calls, [
mock.call("\033[94mcommand 'arg with space'\033[0m"),
mock.call('\033[94mLogging stdout & stderr to /tmp/tmpXYZ.tmp\033[0m'),
])
@mock.patch(BUILTIN_MODULE + '.print')
@mock.patch('core.cli_helpers.Error')
@mock.patch('subprocess.check_call')
@mock.patch('subprocess.call')
@mock.patch(BUILTIN_MODULE + '.open')
def testCheckLogError(
self, open_mock, call_mock, check_call_mock, error_mock, print_mock):
del print_mock, open_mock # Unused.
check_call_mock.side_effect = [subprocess.CalledProcessError(87, ['cmd'])]
with self.assertRaises(subprocess.CalledProcessError):
cli_helpers.CheckLog(['cmd'], '/tmp/tmpXYZ.tmp')
call_mock.assert_called_once_with(['cat', '/tmp/tmpXYZ.tmp'])
self.assertListEqual(error_mock.mock_calls, [
mock.call('=' * 80),
mock.call('Received non-zero return code. Log content:'),
mock.call('=' * 80),
mock.call('=' * 80),
])
@mock.patch(BUILTIN_MODULE + '.print')
@mock.patch('subprocess.check_call')
def testRun(self, check_call_mock, print_mock):
check_call_mock.side_effect = [subprocess.CalledProcessError(87, ['cmd'])]
with self.assertRaises(subprocess.CalledProcessError):
cli_helpers.Run(['cmd', 'arg with space'], env={'a': 'b'})
check_call_mock.assert_called_once_with(
['cmd', 'arg with space'], env={'a': 'b'})
print_mock.assert_called_once_with('\033[94mcmd \'arg with space\'\033[0m')
@mock.patch(BUILTIN_MODULE + '.print')
@mock.patch('subprocess.check_call')
def testRunOkFail(self, check_call_mock, print_mock):
del print_mock # Unused.
check_call_mock.side_effect = [subprocess.CalledProcessError(87, ['cmd'])]
cli_helpers.Run(['cmd'], ok_fail=True)
def testRunWithNonListCommand(self):
with self.assertRaises(ValueError):
cli_helpers.Run('cmd with args')
@mock.patch(BUILTIN_MODULE + '.print')
@mock.patch('core.cli_helpers.input')
def testPrompt(self, input_mock, print_mock):
input_mock.side_effect = ['', '42']
self.assertEqual(cli_helpers.Prompt(
'What is the ultimate meaning of life, universe and everything?'), '42')
self.assertEqual(input_mock.call_count, 2)
self.assertEqual(print_mock.call_count, 3)
if __name__ == "__main__":
unittest.main()
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