| # Copyright 2018 The ChromiumOS Authors |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """Test the cros_collections module.""" |
| |
| import collections |
| |
| from chromite.lib import cros_collections |
| from chromite.lib import cros_test_lib |
| |
| |
| class GroupNamedtuplesByKeyTests(cros_test_lib.TestCase): |
| """Tests for GroupNamedtuplesByKey""" |
| |
| def testGroupNamedtuplesByKey(self): |
| """Test GroupNamedtuplesByKey.""" |
| TestTuple = collections.namedtuple("TestTuple", ("key1", "key2")) |
| r1 = TestTuple("t1", "val1") |
| r2 = TestTuple("t2", "val2") |
| r3 = TestTuple("t2", "val2") |
| r4 = TestTuple("t3", "val3") |
| r5 = TestTuple("t3", "val3") |
| r6 = TestTuple("t3", "val3") |
| input_iter = [r1, r2, r3, r4, r5, r6] |
| |
| expected_result = {"t1": [r1], "t2": [r2, r3], "t3": [r4, r5, r6]} |
| self.assertDictEqual( |
| cros_collections.GroupNamedtuplesByKey(input_iter, "key1"), |
| expected_result, |
| ) |
| |
| expected_result = {"val1": [r1], "val2": [r2, r3], "val3": [r4, r5, r6]} |
| self.assertDictEqual( |
| cros_collections.GroupNamedtuplesByKey(input_iter, "key2"), |
| expected_result, |
| ) |
| |
| expected_result = {None: [r1, r2, r3, r4, r5, r6]} |
| self.assertDictEqual( |
| cros_collections.GroupNamedtuplesByKey(input_iter, "test"), |
| expected_result, |
| ) |
