# Copyright (c) 2016-present, Facebook, 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.
##############################################################################

## @package test_util
# Module caffe2.python.test_util
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from __future__ import unicode_literals
import numpy as np
from caffe2.python import core, workspace

import unittest


def rand_array(*dims):
    # np.random.rand() returns float instead of 0-dim array, that's why need to
    # do some tricks
    return np.array(np.random.rand(*dims) - 0.5).astype(np.float32)


class TestCase(unittest.TestCase):
    @classmethod
    def setUpClass(cls):
        workspace.GlobalInit([
            'caffe2',
            '--caffe2_log_level=0',
        ])
        # clear the default engines settings to separate out its
        # affect from the ops tests
        core.SetEnginePref({}, {})

    def setUp(self):
        self.ws = workspace.C.Workspace()
        workspace.ResetWorkspace()

    def tearDown(self):
        workspace.ResetWorkspace()
