fuzzytest: increase FilesetAllocateArgs.candidate_max_changes_ratio in test

Author: Fallen-Breath

prime_backup/action/helpers/fileset_allocator.py

@@ -27,13 +27,20 @@ def _sum_file_sizes(files: Iterable[schema.File]) -> Tuple[int, int]:
 	return file_raw_size_sum, file_stored_size_sum
 
 
-@dataclasses.dataclass(frozen=True)
-class FilesetAllocateArgs:
+class FilesetAllocateArgsDefaults:
 	candidate_select_count: int = 2
 	candidate_max_changes_ratio: float = 0.2
 	max_delta_ratio: float = 1.5
 	max_base_reuse_count: int = 100
 
+
+@dataclasses.dataclass(frozen=True)
+class FilesetAllocateArgs:
+	candidate_select_count: int = dataclasses.field(default_factory=lambda: FilesetAllocateArgsDefaults.candidate_select_count)
+	candidate_max_changes_ratio: float = dataclasses.field(default_factory=lambda: FilesetAllocateArgsDefaults.candidate_max_changes_ratio)
+	max_delta_ratio: float = dataclasses.field(default_factory=lambda: FilesetAllocateArgsDefaults.max_delta_ratio)
+	max_base_reuse_count: int = dataclasses.field(default_factory=lambda: FilesetAllocateArgsDefaults.max_base_reuse_count)
+
 	@classmethod
 	def from_config(cls, config: 'Config') -> Self:
 		return cls(

tests/test_fuzzy_run.py

@@ -412,6 +412,9 @@ def __init__(self, *args, **kwargs):
 	def setUp(self):
 		_TestStats.get().reset()
 
+		from prime_backup.action.helpers.fileset_allocator import FilesetAllocateArgsDefaults
+		FilesetAllocateArgsDefaults.candidate_max_changes_ratio = 0.4  # increase this for easier fileset reuse
+
 	@contextlib.contextmanager
 	def create_env(self, rnd: random.Random) -> Generator[Tuple[BackupFuzzyEnvironment, Path, Path], None, None]:
 		test_root = Path(os.environ.get('PRIME_BACKUP_FUZZY_TEST_ROOT', 'run/unittest'))
@@ -600,6 +603,7 @@ def validate_all():
 			self.assertEqual(0, db_overview.file_raw_size_sum)
 
 			self.logger.info('Fuzzy test passed')
+			self.logger.info('Final test stats: {}'.format(_TestStats.get()))
 
 
 if __name__ == '__main__':