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#!/usr/bin/env python
#
# 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.
import weakref
from cliff import show
import mock
class FauxFormatter(object):
def __init__(self):
self.args = []
self.obj = weakref.proxy(self)
def emit_one(self, columns, data, stdout, args):
self.args.append((columns, data))
class ExerciseShowOne(show.ShowOne):
def _load_formatter_plugins(self):
return {
'test': FauxFormatter(),
}
def take_action(self, parsed_args):
return (
parsed_args.columns,
[('a', 'A'), ('b', 'B')],
)
def test_formatter_args():
app = mock.Mock()
test_show = ExerciseShowOne(app, [])
parsed_args = mock.Mock()
parsed_args.columns = ('Col1', 'Col2')
parsed_args.formatter = 'test'
test_show.run(parsed_args)
f = test_show._formatter_plugins['test']
assert len(f.args) == 1
args = f.args[0]
assert args[0] == list(parsed_args.columns)
data = list(args[1])
assert data == [('a', 'A'), ('b', 'B')]
def test_dict2columns():
app = mock.Mock()
test_show = ExerciseShowOne(app, [])
d = {'a': 'A', 'b': 'B', 'c': 'C'}
expected = [('a', 'b', 'c'), ('A', 'B', 'C')]
actual = list(test_show.dict2columns(d))
assert expected == actual
def test_no_exist_column():
test_show = ExerciseShowOne(mock.Mock(), [])
parsed_args = mock.Mock()
parsed_args.columns = ('no_exist_column',)
parsed_args.formatter = 'test'
with mock.patch.object(test_show, 'take_action') as mock_take_action:
mock_take_action.return_value = (('Col1', 'Col2', 'Col3'), [])
try:
test_show.run(parsed_args)
except ValueError:
pass
else:
assert False, 'Should have had an exception'
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