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
17from pyfakefs import fake_filesystem_unittest
18
19import bloaty_merger
20import file_sections_pb2
21
22
23class BloatyMergerTestCase(fake_filesystem_unittest.TestCase):
24  def setUp(self):
25    self.setUpPyfakefs()
26
27  def test_parse_csv(self):
28    csv_content = "sections,vmsize,filesize\nsection1,2,3\n"
29    self.fs.create_file("file1.bloaty.csv", contents=csv_content)
30    pb = bloaty_merger.parse_csv("file1.bloaty.csv")
31    self.assertEqual(pb.path, "file1")
32    self.assertEqual(len(pb.sections), 1)
33    s = pb.sections[0]
34    self.assertEqual(s.name, "section1")
35    self.assertEqual(s.vm_size, 2)
36    self.assertEqual(s.file_size, 3)
37
38  def test_missing_file(self):
39    with self.assertRaises(FileNotFoundError):
40      bloaty_merger.parse_csv("missing.bloaty.csv")
41
42  def test_malformed_csv(self):
43    csv_content = "header1,heaVder2,header3\n4,5,6\n"
44    self.fs.create_file("file1.bloaty.csv", contents=csv_content)
45    with self.assertRaises(KeyError):
46      bloaty_merger.parse_csv("file1.bloaty.csv")
47
48  def test_create_file_metrics(self):
49    file_list = "file1.bloaty.csv file2.bloaty.csv"
50    file1_content = "sections,vmsize,filesize\nsection1,2,3\nsection2,7,8"
51    file2_content = "sections,vmsize,filesize\nsection1,4,5\n"
52
53    self.fs.create_file("files.lst", contents=file_list)
54    self.fs.create_file("file1.bloaty.csv", contents=file1_content)
55    self.fs.create_file("file2.bloaty.csv", contents=file2_content)
56
57    bloaty_merger.create_file_size_metrics("files.lst", "output.pb.gz")
58
59    metrics = file_sections_pb2.FileSizeMetrics()
60    with gzip.open("output.pb.gz", "rb") as output:
61      metrics.ParseFromString(output.read())
62
63
64if __name__ == '__main__':
65  suite = unittest.TestLoader().loadTestsFromTestCase(BloatyMergerTestCase)
66  unittest.TextTestRunner(verbosity=2).run(suite)
67