| # Copyright 2015-2017 ARM Limited |
| # |
| # 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 unittest |
| from trappy import utils |
| import pandas |
| from pandas.util.testing import assert_series_equal |
| |
| |
| class TestUtils(unittest.TestCase): |
| |
| def test_handle_duplicate_index(self): |
| """Test Util Function: handle_duplicate_index |
| """ |
| |
| # Refer to the example in the function doc string |
| values = [0, 1, 2, 3, 4] |
| index = [0.0, 1.0, 1.0, 6.0, 7.0] |
| series = pandas.Series(values, index=index) |
| new_index = [0.0, 1.0, 2.0, 3.0, 4.0, 6.0, 7.0] |
| |
| with self.assertRaises(ValueError): |
| series.reindex(new_index) |
| |
| max_delta = 0.001 |
| expected_index = [0.0, 1.0, 1 + max_delta, 6.0, 7.0] |
| expected_series = pandas.Series(values, index=expected_index) |
| series = utils.handle_duplicate_index(series, max_delta) |
| assert_series_equal(series, expected_series) |
| |
| # Make sure that the reindex doesn't raise ValueError any more |
| series.reindex(new_index) |
| |
| def test_handle_duplicate_index_duplicate_end(self): |
| """handle_duplicate_index copes with duplicates at the end of the series""" |
| |
| max_delta = 0.001 |
| values = [0, 1, 2, 3, 4] |
| index = [0.0, 1.0, 2.0, 6.0, 6.0] |
| expected_index = index[:] |
| expected_index[-1] += max_delta |
| series = pandas.Series(values, index=index) |
| expected_series = pandas.Series(values, index=expected_index) |
| |
| series = utils.handle_duplicate_index(series, max_delta) |
| assert_series_equal(series, expected_series) |