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# Copyright (C) 2018 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Tests for the core module."""
from unittest import mock
from fire import core
from fire import test_components as tc
from fire import testutils
from fire import trace
class CoreTest(testutils.BaseTestCase):
def testOneLineResult(self):
self.assertEqual(core._OneLineResult(1), '1') # pylint: disable=protected-access
self.assertEqual(core._OneLineResult('hello'), 'hello') # pylint: disable=protected-access
self.assertEqual(core._OneLineResult({}), '{}') # pylint: disable=protected-access
self.assertEqual(core._OneLineResult({'x': 'y'}), '{"x": "y"}') # pylint: disable=protected-access
def testOneLineResultCircularRef(self):
circular_reference = tc.CircularReference()
self.assertEqual(core._OneLineResult(circular_reference.create()), # pylint: disable=protected-access
"{'y': {...}}")
@mock.patch('fire.interact.Embed')
def testInteractiveMode(self, mock_embed):
core.Fire(tc.TypedProperties, command=['alpha'])
self.assertFalse(mock_embed.called)
core.Fire(tc.TypedProperties, command=['alpha', '--', '-i'])
self.assertTrue(mock_embed.called)
@mock.patch('fire.interact.Embed')
def testInteractiveModeFullArgument(self, mock_embed):
core.Fire(tc.TypedProperties, command=['alpha', '--', '--interactive'])
self.assertTrue(mock_embed.called)
@mock.patch('fire.interact.Embed')
def testInteractiveModeVariables(self, mock_embed):
core.Fire(tc.WithDefaults, command=['double', '2', '--', '-i'])
self.assertTrue(mock_embed.called)
(variables, verbose), unused_kwargs = mock_embed.call_args
self.assertFalse(verbose)
self.assertEqual(variables['result'], 4)
self.assertIsInstance(variables['self'], tc.WithDefaults)
self.assertIsInstance(variables['trace'], trace.FireTrace)
@mock.patch('fire.interact.Embed')
def testInteractiveModeVariablesWithName(self, mock_embed):
core.Fire(tc.WithDefaults,
command=['double', '2', '--', '-i', '-v'], name='D')
self.assertTrue(mock_embed.called)
(variables, verbose), unused_kwargs = mock_embed.call_args
self.assertTrue(verbose)
self.assertEqual(variables['result'], 4)
self.assertIsInstance(variables['self'], tc.WithDefaults)
self.assertEqual(variables['D'], tc.WithDefaults)
self.assertIsInstance(variables['trace'], trace.FireTrace)
# TODO(dbieber): Use parameterized tests to break up repetitive tests.
def testHelpWithClass(self):
with self.assertRaisesFireExit(0, 'SYNOPSIS.*ARG1'):
core.Fire(tc.InstanceVars, command=['--', '--help'])
with self.assertRaisesFireExit(0, 'INFO:.*SYNOPSIS.*ARG1'):
core.Fire(tc.InstanceVars, command=['--help'])
with self.assertRaisesFireExit(0, 'INFO:.*SYNOPSIS.*ARG1'):
core.Fire(tc.InstanceVars, command=['-h'])
def testHelpWithMember(self):
with self.assertRaisesFireExit(0, 'SYNOPSIS.*capitalize'):
core.Fire(tc.TypedProperties, command=['gamma', '--', '--help'])
with self.assertRaisesFireExit(0, 'INFO:.*SYNOPSIS.*capitalize'):
core.Fire(tc.TypedProperties, command=['gamma', '--help'])
with self.assertRaisesFireExit(0, 'INFO:.*SYNOPSIS.*capitalize'):
core.Fire(tc.TypedProperties, command=['gamma', '-h'])
with self.assertRaisesFireExit(0, 'INFO:.*SYNOPSIS.*delta'):
core.Fire(tc.TypedProperties, command=['delta', '--help'])
with self.assertRaisesFireExit(0, 'INFO:.*SYNOPSIS.*echo'):
core.Fire(tc.TypedProperties, command=['echo', '--help'])
def testHelpOnErrorInConstructor(self):
with self.assertRaisesFireExit(0, 'SYNOPSIS.*VALUE'):
core.Fire(tc.ErrorInConstructor, command=['--', '--help'])
with self.assertRaisesFireExit(0, 'INFO:.*SYNOPSIS.*VALUE'):
core.Fire(tc.ErrorInConstructor, command=['--help'])
def testHelpWithNamespaceCollision(self):
# Tests cases when calling the help shortcut should not show help.
with self.assertOutputMatches(stdout='DESCRIPTION.*', stderr=None):
core.Fire(tc.WithHelpArg, command=['--help', 'False'])
with self.assertOutputMatches(stdout='help in a dict', stderr=None):
core.Fire(tc.WithHelpArg, command=['dictionary', '__help'])
with self.assertOutputMatches(stdout='{}', stderr=None):
core.Fire(tc.WithHelpArg, command=['dictionary', '--help'])
with self.assertOutputMatches(stdout='False', stderr=None):
core.Fire(tc.function_with_help, command=['False'])
def testInvalidParameterRaisesFireExit(self):
with self.assertRaisesFireExit(2, 'runmisspelled'):
core.Fire(tc.Kwargs, command=['props', '--a=1', '--b=2', 'runmisspelled'])
def testErrorRaising(self):
# Errors in user code should not be caught; they should surface as normal.
# This will lead to exit status code 1 for the client program.
with self.assertRaises(ValueError):
core.Fire(tc.ErrorRaiser, command=['fail'])
def testFireError(self):
error = core.FireError('Example error')
self.assertIsNotNone(error)
def testFireErrorMultipleValues(self):
error = core.FireError('Example error', 'value')
self.assertIsNotNone(error)
def testPrintEmptyDict(self):
with self.assertOutputMatches(stdout='{}', stderr=None):
core.Fire(tc.EmptyDictOutput, command=['totally_empty'])
with self.assertOutputMatches(stdout='{}', stderr=None):
core.Fire(tc.EmptyDictOutput, command=['nothing_printable'])
def testPrintOrderedDict(self):
with self.assertOutputMatches(stdout=r'A:\s+A\s+2:\s+2\s+', stderr=None):
core.Fire(tc.OrderedDictionary, command=['non_empty'])
with self.assertOutputMatches(stdout='{}'):
core.Fire(tc.OrderedDictionary, command=['empty'])
def testPrintNamedTupleField(self):
with self.assertOutputMatches(stdout='11', stderr=None):
core.Fire(tc.NamedTuple, command=['point', 'x'])
def testPrintNamedTupleFieldNameEqualsValue(self):
with self.assertOutputMatches(stdout='x', stderr=None):
core.Fire(tc.NamedTuple, command=['matching_names', 'x'])
def testPrintNamedTupleIndex(self):
with self.assertOutputMatches(stdout='22', stderr=None):
core.Fire(tc.NamedTuple, command=['point', '1'])
def testPrintSet(self):
with self.assertOutputMatches(stdout='.*three.*', stderr=None):
core.Fire(tc.simple_set(), command=[])
def testPrintFrozenSet(self):
with self.assertOutputMatches(stdout='.*three.*', stderr=None):
core.Fire(tc.simple_frozenset(), command=[])
def testPrintNamedTupleNegativeIndex(self):
with self.assertOutputMatches(stdout='11', stderr=None):
core.Fire(tc.NamedTuple, command=['point', '-2'])
def testCallable(self):
with self.assertOutputMatches(stdout=r'foo:\s+foo\s+', stderr=None):
core.Fire(tc.CallableWithKeywordArgument(), command=['--foo=foo'])
with self.assertOutputMatches(stdout=r'foo\s+', stderr=None):
core.Fire(tc.CallableWithKeywordArgument(), command=['print_msg', 'foo'])
with self.assertOutputMatches(stdout=r'', stderr=None):
core.Fire(tc.CallableWithKeywordArgument(), command=[])
def testCallableWithPositionalArgs(self):
with self.assertRaisesFireExit(2, ''):
# This does not give 7 since positional args are disallowed for callable
# objects.
core.Fire(tc.CallableWithPositionalArgs(), command=['3', '4'])
def testStaticMethod(self):
self.assertEqual(
core.Fire(tc.HasStaticAndClassMethods,
command=['static_fn', 'alpha']),
'alpha',
)
def testClassMethod(self):
self.assertEqual(
core.Fire(tc.HasStaticAndClassMethods,
command=['class_fn', '6']),
7,
)
def testCustomSerialize(self):
def serialize(x):
if isinstance(x, list):
return ', '.join(str(xi) for xi in x)
if isinstance(x, dict):
return ', '.join('{}={!r}'.format(k, v) for k, v in sorted(x.items()))
if x == 'special':
return ['SURPRISE!!', "I'm a list!"]
return x
ident = lambda x: x
with self.assertOutputMatches(stdout='a, b', stderr=None):
_ = core.Fire(ident, command=['[a,b]'], serialize=serialize)
with self.assertOutputMatches(stdout='a=5, b=6', stderr=None):
_ = core.Fire(ident, command=['{a:5,b:6}'], serialize=serialize)
with self.assertOutputMatches(stdout='asdf', stderr=None):
_ = core.Fire(ident, command=['asdf'], serialize=serialize)
with self.assertOutputMatches(
stdout="SURPRISE!!\nI'm a list!\n", stderr=None):
_ = core.Fire(ident, command=['special'], serialize=serialize)
with self.assertRaises(core.FireError):
core.Fire(ident, command=['asdf'], serialize=55)
def testLruCacheDecoratorBoundArg(self):
self.assertEqual(
core.Fire(tc.py3.LruCacheDecoratedMethod,
command=['lru_cache_in_class', 'foo']), 'foo')
def testLruCacheDecorator(self):
self.assertEqual(
core.Fire(tc.py3.lru_cache_decorated,
command=['foo']), 'foo')
if __name__ == '__main__':
testutils.main()
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