md5_check_test.py (6765B)
1 #!/usr/bin/env python3 2 # Copyright 2013 The Chromium Authors 3 # Use of this source code is governed by a BSD-style license that can be 4 # found in the LICENSE file. 5 6 import fnmatch 7 import os 8 import sys 9 import tempfile 10 import unittest 11 import zipfile 12 13 sys.path.insert( 14 0, os.path.abspath(os.path.join(os.path.dirname(__file__), os.pardir))) 15 from util import md5_check 16 17 18 def _WriteZipFile(path, entries): 19 with zipfile.ZipFile(path, 'w') as zip_file: 20 for subpath, data in entries: 21 zip_file.writestr(subpath, data) 22 23 24 class TestMd5Check(unittest.TestCase): 25 def setUp(self): 26 self.called = False 27 self.changes = None 28 29 def testCallAndRecordIfStale(self): 30 input_strings = ['string1', 'string2'] 31 input_file1 = tempfile.NamedTemporaryFile(suffix='.txt') 32 input_file2 = tempfile.NamedTemporaryFile(suffix='.zip') 33 file1_contents = b'input file 1' 34 input_file1.write(file1_contents) 35 input_file1.flush() 36 # Test out empty zip file to start. 37 _WriteZipFile(input_file2.name, []) 38 input_files = [input_file1.name, input_file2.name] 39 zip_paths = [os.path.relpath(input_file2.name)] 40 41 record_path = tempfile.NamedTemporaryFile(suffix='.stamp') 42 43 def CheckCallAndRecord(should_call, 44 message, 45 force=False, 46 outputs_specified=False, 47 outputs_missing=False, 48 expected_changes=None, 49 added_or_modified_only=None, 50 track_subentries=False): 51 output_paths = None 52 if outputs_specified: 53 output_file1 = tempfile.NamedTemporaryFile() 54 if outputs_missing: 55 output_file1.close() # Gets deleted on close(). 56 output_paths = [output_file1.name] 57 58 self.called = False 59 self.changes = None 60 if expected_changes or added_or_modified_only is not None: 61 def MarkCalled(changes): 62 self.called = True 63 self.changes = changes 64 else: 65 def MarkCalled(): 66 self.called = True 67 68 md5_check.CallAndRecordIfStale( 69 MarkCalled, 70 record_path=record_path.name, 71 input_paths=input_files, 72 input_strings=input_strings, 73 output_paths=output_paths, 74 force=force, 75 pass_changes=(expected_changes or added_or_modified_only) is not None, 76 track_subpaths_allowlist=zip_paths if track_subentries else None) 77 self.assertEqual(should_call, self.called, message) 78 if expected_changes: 79 description = self.changes.DescribeDifference() 80 self.assertTrue(fnmatch.fnmatch(description, expected_changes), 81 'Expected %s to match %s' % ( 82 repr(description), repr(expected_changes))) 83 if should_call and added_or_modified_only is not None: 84 self.assertEqual(added_or_modified_only, 85 self.changes.AddedOrModifiedOnly()) 86 87 CheckCallAndRecord(True, 'should call when record doesn\'t exist', 88 expected_changes='Previous stamp file not found.', 89 added_or_modified_only=False) 90 CheckCallAndRecord(False, 'should not call when nothing changed') 91 input_files = input_files[::-1] 92 CheckCallAndRecord(False, 'reordering of inputs shouldn\'t trigger call') 93 94 CheckCallAndRecord(False, 'should not call when nothing changed #2', 95 outputs_specified=True, outputs_missing=False) 96 CheckCallAndRecord(True, 'should call when output missing', 97 outputs_specified=True, outputs_missing=True, 98 expected_changes='Outputs do not exist:*', 99 added_or_modified_only=False) 100 CheckCallAndRecord(True, force=True, message='should call when forced', 101 expected_changes='force=True', 102 added_or_modified_only=False) 103 104 input_file1.write(b'some more input') 105 input_file1.flush() 106 CheckCallAndRecord(True, 107 'changed input file should trigger call', 108 expected_changes='*Modified: %s' % 109 os.path.relpath(input_file1.name), 110 added_or_modified_only=True) 111 112 input_files = input_files[:1] 113 CheckCallAndRecord(True, 114 'removing file should trigger call', 115 expected_changes='*Removed: %s' % 116 os.path.relpath(input_file1.name), 117 added_or_modified_only=False) 118 119 input_files.append(input_file1.name) 120 CheckCallAndRecord(True, 121 'added input file should trigger call', 122 expected_changes='*Added: %s' % 123 os.path.relpath(input_file1.name), 124 added_or_modified_only=True) 125 126 input_strings[0] = input_strings[0] + ' a bit longer' 127 CheckCallAndRecord(True, 'changed input string should trigger call', 128 expected_changes='*Input strings changed*', 129 added_or_modified_only=False) 130 131 input_strings = input_strings[::-1] 132 CheckCallAndRecord(True, 'reordering of string inputs should trigger call', 133 expected_changes='*Input strings changed*') 134 135 input_strings = input_strings[:1] 136 CheckCallAndRecord(True, 'removing a string should trigger call') 137 138 input_strings.append('a brand new string') 139 CheckCallAndRecord( 140 True, 141 'added input string should trigger call', 142 added_or_modified_only=False) 143 144 _WriteZipFile(input_file2.name, [('path/1.txt', '1')]) 145 CheckCallAndRecord(True, 146 'added subpath should trigger call', 147 expected_changes='*Modified: %s*Subpath added: %s' % 148 (os.path.relpath(input_file2.name), 'path/1.txt'), 149 added_or_modified_only=True, 150 track_subentries=True) 151 _WriteZipFile(input_file2.name, [('path/1.txt', '2')]) 152 CheckCallAndRecord(True, 153 'changed subpath should trigger call', 154 expected_changes='*Modified: %s*Subpath modified: %s' % 155 (os.path.relpath(input_file2.name), 'path/1.txt'), 156 added_or_modified_only=True, 157 track_subentries=True) 158 159 _WriteZipFile(input_file2.name, []) 160 CheckCallAndRecord(True, 161 'removed subpath should trigger call', 162 expected_changes='*Modified: %s*Subpath removed: %s' % 163 (os.path.relpath(input_file2.name), 'path/1.txt'), 164 added_or_modified_only=False) 165 166 167 if __name__ == '__main__': 168 unittest.main()