xref: /aosp_15_r20/build/soong/bloaty/bloaty_merger_test.py (revision 333d2b3687b3a337dbcca9d65000bca186795e39) 
1# Copyright 2021 Google Inc. All rights reserved.
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7#     http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14import gzip
15import unittest
16
17# pylint: disable=import-error
18from pyfakefs import fake_filesystem_unittest
19
20import bloaty_merger
21import file_sections_pb2
22
23
24class BloatyMergerTestCase(fake_filesystem_unittest.TestCase):
25    def setUp(self):
26        self.setUpPyfakefs()
27
28    def test_parse_csv(self):
29        csv_content = "sections,vmsize,filesize\nsection1,2,3\n"
30        self.fs.create_file("file1.bloaty.csv", contents=csv_content)
31        pb = bloaty_merger.parse_csv("file1.bloaty.csv")
32        self.assertEqual(pb.path, "file1")
33        self.assertEqual(len(pb.sections), 1)
34        s = pb.sections[0]
35        self.assertEqual(s.name, "section1")
36        self.assertEqual(s.vm_size, 2)
37        self.assertEqual(s.file_size, 3)
38
39    def test_missing_file(self):
40        with self.assertRaises(FileNotFoundError):
41            bloaty_merger.parse_csv("missing.bloaty.csv")
42
43    def test_malformed_csv(self):
44        csv_content = "header1,heaVder2,header3\n4,5,6\n"
45        self.fs.create_file("file1.bloaty.csv", contents=csv_content)
46        with self.assertRaises(KeyError):
47            bloaty_merger.parse_csv("file1.bloaty.csv")
48
49    def test_create_file_metrics(self):
50        file_list = "file1.bloaty.csv file2.bloaty.csv"
51        file1_content = "sections,vmsize,filesize\nsection1,2,3\nsection2,7,8"
52        file2_content = "sections,vmsize,filesize\nsection1,4,5\n"
53
54        self.fs.create_file("files.lst", contents=file_list)
55        self.fs.create_file("file1.bloaty.csv", contents=file1_content)
56        self.fs.create_file("file2.bloaty.csv", contents=file2_content)
57
58        bloaty_merger.create_file_size_metrics("files.lst", "output.pb.gz")
59
60        metrics = file_sections_pb2.FileSizeMetrics()
61        with gzip.open("output.pb.gz", "rb") as output:
62            metrics.ParseFromString(output.read())
63
64
65if __name__ == '__main__':
66    suite = unittest.TestLoader().loadTestsFromTestCase(BloatyMergerTestCase)
67    unittest.TextTestRunner(verbosity=2).run(suite)
68