diff --git a/tests/unit/actions/test_restore.py b/tests/unit/actions/test_restore.py
index 5ad1d4d5..9941fdb3 100644
--- a/tests/unit/actions/test_restore.py
+++ b/tests/unit/actions/test_restore.py
@@ -466,20 +466,26 @@ def test_collect_dumps_from_archive_with_dumps_metadata_parses_it():
     flexmock(module.borgmatic.hooks.data_source.dump).should_receive(
         'make_data_source_dump_path',
     ).and_return('')
-    flexmock(module.borgmatic.config.paths).should_receive('make_runtime_directory_glob').and_return('')
+    flexmock(module.borgmatic.config.paths).should_receive(
+        'make_runtime_directory_glob'
+    ).and_return('')
     flexmock(module.borgmatic.borg.list).should_receive('capture_archive_listing').and_return(
         [
             'borgmatic/postgresql_databases/dumps.json',
             'borgmatic/mysql_databases/dumps.json',
         ],
     )
-    flexmock(module.borgmatic.borg.extract).should_receive('extract_archive').and_return(flexmock(stdout=flexmock(read=lambda: b'')))
+    flexmock(module.borgmatic.borg.extract).should_receive('extract_archive').and_return(
+        flexmock(stdout=flexmock(read=lambda: b''))
+    )
     dumps_metadata = [
         module.Dump('postgresql_databases', 'foo'),
         module.Dump('postgresql_databases', 'bar', 'host', 1234),
         module.Dump('mysql_databases', 'quux'),
     ]
-    flexmock(module.borgmatic.hooks.data_source.dump).should_receive('parse_data_source_dumps_metadata').and_return(dumps_metadata)
+    flexmock(module.borgmatic.hooks.data_source.dump).should_receive(
+        'parse_data_source_dumps_metadata'
+    ).and_return(dumps_metadata)
     flexmock(module.borgmatic.config.paths).should_receive('get_borgmatic_source_directory').never()
 
     archive_dumps = module.collect_dumps_from_archive(
@@ -496,9 +502,13 @@ def test_collect_dumps_from_archive_with_dumps_metadata_parses_it():
     assert archive_dumps == set(dumps_metadata)
 
 
-def test_collect_dumps_from_archive_without_dumps_metadata_falls_back_to_parsing_archive_paths():
-    flexmock(module.borgmatic.config.paths).should_receive('make_runtime_directory_glob').and_return('')
-    flexmock(module.borgmatic.borg.list).should_receive('capture_archive_listing').and_return([]).and_return(
+def test_collect_dumps_from_archive_with_empty_dumps_metadata_path_falls_back_to_parsing_archive_paths():
+    flexmock(module.borgmatic.config.paths).should_receive(
+        'make_runtime_directory_glob'
+    ).and_return('')
+    flexmock(module.borgmatic.borg.list).should_receive('capture_archive_listing').and_return(
+        ['']
+    ).and_return(
         [
             'borgmatic/postgresql_databases/localhost/foo',
             'borgmatic/postgresql_databases/host:1234/bar',
@@ -506,7 +516,51 @@ def test_collect_dumps_from_archive_without_dumps_metadata_falls_back_to_parsing
         ],
     )
     flexmock(module.borgmatic.borg.extract).should_receive('extract_archive').never()
-    flexmock(module.borgmatic.hooks.data_source.dump).should_receive('parse_data_source_dumps_metadata').never()
+    flexmock(module.borgmatic.hooks.data_source.dump).should_receive(
+        'parse_data_source_dumps_metadata'
+    ).never()
+    flexmock(module.borgmatic.config.paths).should_receive(
+        'get_borgmatic_source_directory',
+    ).and_return('/root/.borgmatic')
+    flexmock(module.borgmatic.hooks.data_source.dump).should_receive(
+        'make_data_source_dump_path',
+    ).and_return('')
+
+    archive_dumps = module.collect_dumps_from_archive(
+        repository={'path': 'repo'},
+        archive='archive',
+        config={},
+        local_borg_version=flexmock(),
+        global_arguments=flexmock(dry_run=False, log_json=False),
+        local_path=flexmock(),
+        remote_path=flexmock(),
+        borgmatic_runtime_directory='/run/borgmatic',
+    )
+
+    assert archive_dumps == {
+        module.Dump('postgresql_databases', 'foo'),
+        module.Dump('postgresql_databases', 'bar', 'host', 1234),
+        module.Dump('mysql_databases', 'quux'),
+    }
+
+
+def test_collect_dumps_from_archive_without_dumps_metadata_falls_back_to_parsing_archive_paths():
+    flexmock(module.borgmatic.config.paths).should_receive(
+        'make_runtime_directory_glob'
+    ).and_return('')
+    flexmock(module.borgmatic.borg.list).should_receive('capture_archive_listing').and_return(
+        []
+    ).and_return(
+        [
+            'borgmatic/postgresql_databases/localhost/foo',
+            'borgmatic/postgresql_databases/host:1234/bar',
+            'borgmatic/mysql_databases/localhost/quux',
+        ],
+    )
+    flexmock(module.borgmatic.borg.extract).should_receive('extract_archive').never()
+    flexmock(module.borgmatic.hooks.data_source.dump).should_receive(
+        'parse_data_source_dumps_metadata'
+    ).never()
     flexmock(module.borgmatic.config.paths).should_receive(
         'get_borgmatic_source_directory',
     ).and_return('/root/.borgmatic')
@@ -533,8 +587,12 @@ def test_collect_dumps_from_archive_without_dumps_metadata_falls_back_to_parsing
 
 
 def test_collect_dumps_from_archive_parses_archive_paths_with_different_base_directories():
-    flexmock(module.borgmatic.config.paths).should_receive('make_runtime_directory_glob').and_return('')
-    flexmock(module.borgmatic.borg.list).should_receive('capture_archive_listing').and_return([]).and_return(
+    flexmock(module.borgmatic.config.paths).should_receive(
+        'make_runtime_directory_glob'
+    ).and_return('')
+    flexmock(module.borgmatic.borg.list).should_receive('capture_archive_listing').and_return(
+        []
+    ).and_return(
         [
             'borgmatic/postgresql_databases/localhost/foo',
             '.borgmatic/postgresql_databases/localhost/bar',
@@ -543,7 +601,9 @@ def test_collect_dumps_from_archive_parses_archive_paths_with_different_base_dir
         ],
     )
     flexmock(module.borgmatic.borg.extract).should_receive('extract_archive').never()
-    flexmock(module.borgmatic.hooks.data_source.dump).should_receive('parse_data_source_dumps_metadata').never()
+    flexmock(module.borgmatic.hooks.data_source.dump).should_receive(
+        'parse_data_source_dumps_metadata'
+    ).never()
     flexmock(module.borgmatic.config.paths).should_receive(
         'get_borgmatic_source_directory',
     ).and_return('/root/.borgmatic')
@@ -571,15 +631,21 @@ def test_collect_dumps_from_archive_parses_archive_paths_with_different_base_dir
 
 
 def test_collect_dumps_from_archive_parses_directory_format_archive_paths():
-    flexmock(module.borgmatic.config.paths).should_receive('make_runtime_directory_glob').and_return('')
-    flexmock(module.borgmatic.borg.list).should_receive('capture_archive_listing').and_return([]).and_return(
+    flexmock(module.borgmatic.config.paths).should_receive(
+        'make_runtime_directory_glob'
+    ).and_return('')
+    flexmock(module.borgmatic.borg.list).should_receive('capture_archive_listing').and_return(
+        []
+    ).and_return(
         [
             'borgmatic/postgresql_databases/localhost/foo/table1',
             'borgmatic/postgresql_databases/localhost/foo/table2',
         ],
     )
     flexmock(module.borgmatic.borg.extract).should_receive('extract_archive').never()
-    flexmock(module.borgmatic.hooks.data_source.dump).should_receive('parse_data_source_dumps_metadata').never()
+    flexmock(module.borgmatic.hooks.data_source.dump).should_receive(
+        'parse_data_source_dumps_metadata'
+    ).never()
     flexmock(module.borgmatic.config.paths).should_receive(
         'get_borgmatic_source_directory',
     ).and_return('/root/.borgmatic')
@@ -604,8 +670,12 @@ def test_collect_dumps_from_archive_parses_directory_format_archive_paths():
 
 
 def test_collect_dumps_from_archive_skips_bad_archive_paths_or_bad_path_components():
-    flexmock(module.borgmatic.config.paths).should_receive('make_runtime_directory_glob').and_return('')
-    flexmock(module.borgmatic.borg.list).should_receive('capture_archive_listing').and_return([]).and_return(
+    flexmock(module.borgmatic.config.paths).should_receive(
+        'make_runtime_directory_glob'
+    ).and_return('')
+    flexmock(module.borgmatic.borg.list).should_receive('capture_archive_listing').and_return(
+        []
+    ).and_return(
         [
             'borgmatic/postgresql_databases/localhost/foo',
             'borgmatic/postgresql_databases/localhost:abcd/bar',
@@ -615,7 +685,9 @@ def test_collect_dumps_from_archive_skips_bad_archive_paths_or_bad_path_componen
         ],
     )
     flexmock(module.borgmatic.borg.extract).should_receive('extract_archive').never()
-    flexmock(module.borgmatic.hooks.data_source.dump).should_receive('parse_data_source_dumps_metadata').never()
+    flexmock(module.borgmatic.hooks.data_source.dump).should_receive(
+        'parse_data_source_dumps_metadata'
+    ).never()
     flexmock(module.borgmatic.config.paths).should_receive(
         'get_borgmatic_source_directory',
     ).and_return('/root/.borgmatic')
diff --git a/tests/unit/hooks/data_source/test_mariadb.py b/tests/unit/hooks/data_source/test_mariadb.py
index 184a0ff9..922d5e1c 100644
--- a/tests/unit/hooks/data_source/test_mariadb.py
+++ b/tests/unit/hooks/data_source/test_mariadb.py
@@ -355,7 +355,7 @@ def test_dump_data_sources_dumps_each_database():
         [
             module.borgmatic.actions.restore.Dump('mariadb_databases', 'foo'),
             module.borgmatic.actions.restore.Dump('mariadb_databases', 'bar'),
-        ]
+        ],
     ).once()
 
     assert (
@@ -404,7 +404,7 @@ def test_dump_data_sources_dumps_with_password():
         'mariadb_databases',
         [
             module.borgmatic.actions.restore.Dump('mariadb_databases', 'foo'),
-        ]
+        ],
     ).once()
 
     assert module.dump_data_sources(
@@ -455,7 +455,7 @@ def test_dump_data_sources_dumps_with_environment_password_transport_passes_pass
         'mariadb_databases',
         [
             module.borgmatic.actions.restore.Dump('mariadb_databases', 'foo'),
-        ]
+        ],
     ).once()
 
     assert module.dump_data_sources(
@@ -493,7 +493,7 @@ def test_dump_data_sources_dumps_all_databases_at_once():
         'mariadb_databases',
         [
             module.borgmatic.actions.restore.Dump('mariadb_databases', 'all'),
-        ]
+        ],
     ).once()
 
     assert module.dump_data_sources(
@@ -535,7 +535,7 @@ def test_dump_data_sources_dumps_all_databases_separately_when_format_configured
         [
             module.borgmatic.actions.restore.Dump('mariadb_databases', 'foo'),
             module.borgmatic.actions.restore.Dump('mariadb_databases', 'bar'),
-        ]
+        ],
     ).once()
 
     assert (
diff --git a/tests/unit/hooks/data_source/test_mongodb.py b/tests/unit/hooks/data_source/test_mongodb.py
index 8ac97c11..98f5ae2e 100644
--- a/tests/unit/hooks/data_source/test_mongodb.py
+++ b/tests/unit/hooks/data_source/test_mongodb.py
@@ -45,7 +45,7 @@ def test_dump_data_sources_runs_mongodump_for_each_database():
         [
             module.borgmatic.actions.restore.Dump('mongodb_databases', 'foo'),
             module.borgmatic.actions.restore.Dump('mongodb_databases', 'bar'),
-        ]
+        ],
     ).once()
 
     assert (
@@ -113,8 +113,10 @@ def test_dump_data_sources_runs_mongodump_with_hostname_and_port():
         '/run/borgmatic',
         'mongodb_databases',
         [
-            module.borgmatic.actions.restore.Dump('mongodb_databases', 'foo', 'database.example.org', 27018),
-        ]
+            module.borgmatic.actions.restore.Dump(
+                'mongodb_databases', 'foo', 'database.example.org', 27018
+            ),
+        ],
     ).once()
 
     assert module.dump_data_sources(
@@ -172,7 +174,7 @@ def test_dump_data_sources_runs_mongodump_with_username_and_password():
         'mongodb_databases',
         [
             module.borgmatic.actions.restore.Dump('mongodb_databases', 'foo'),
-        ]
+        ],
     ).once()
 
     assert module.dump_data_sources(
@@ -203,7 +205,7 @@ def test_dump_data_sources_runs_mongodump_with_directory_format():
         'mongodb_databases',
         [
             module.borgmatic.actions.restore.Dump('mongodb_databases', 'foo'),
-        ]
+        ],
     ).once()
 
     assert (
@@ -246,7 +248,7 @@ def test_dump_data_sources_runs_mongodump_with_options():
         'mongodb_databases',
         [
             module.borgmatic.actions.restore.Dump('mongodb_databases', 'foo'),
-        ]
+        ],
     ).once()
 
     assert module.dump_data_sources(
@@ -278,7 +280,7 @@ def test_dump_data_sources_runs_mongodumpall_for_all_databases():
         'mongodb_databases',
         [
             module.borgmatic.actions.restore.Dump('mongodb_databases', 'all'),
-        ]
+        ],
     ).once()
 
     assert module.dump_data_sources(
@@ -758,7 +760,7 @@ def test_dump_data_sources_uses_custom_mongodump_command():
         'mongodb_databases',
         [
             module.borgmatic.actions.restore.Dump('mongodb_databases', 'foo'),
-        ]
+        ],
     ).once()
 
     assert module.dump_data_sources(
diff --git a/tests/unit/hooks/data_source/test_mysql.py b/tests/unit/hooks/data_source/test_mysql.py
index 904282c2..f9cbe099 100644
--- a/tests/unit/hooks/data_source/test_mysql.py
+++ b/tests/unit/hooks/data_source/test_mysql.py
@@ -238,7 +238,7 @@ def test_dump_data_sources_dumps_each_database():
         [
             module.borgmatic.actions.restore.Dump('mysql_databases', 'foo'),
             module.borgmatic.actions.restore.Dump('mysql_databases', 'bar'),
-        ]
+        ],
     ).once()
 
     assert (
@@ -287,7 +287,7 @@ def test_dump_data_sources_dumps_with_password():
         'mysql_databases',
         [
             module.borgmatic.actions.restore.Dump('mysql_databases', 'foo'),
-        ]
+        ],
     ).once()
 
     assert module.dump_data_sources(
@@ -338,7 +338,7 @@ def test_dump_data_sources_dumps_with_environment_password_transport_passes_pass
         'mysql_databases',
         [
             module.borgmatic.actions.restore.Dump('mysql_databases', 'foo'),
-        ]
+        ],
     ).once()
 
     assert module.dump_data_sources(
@@ -377,7 +377,7 @@ def test_dump_data_sources_dumps_all_databases_at_once():
         'mysql_databases',
         [
             module.borgmatic.actions.restore.Dump('mysql_databases', 'all'),
-        ]
+        ],
     ).once()
 
     assert module.dump_data_sources(
@@ -419,7 +419,7 @@ def test_dump_data_sources_dumps_all_databases_separately_when_format_configured
         [
             module.borgmatic.actions.restore.Dump('mysql_databases', 'foo'),
             module.borgmatic.actions.restore.Dump('mysql_databases', 'bar'),
-        ]
+        ],
     ).once()
 
     assert (
diff --git a/tests/unit/hooks/data_source/test_postgresql.py b/tests/unit/hooks/data_source/test_postgresql.py
index 0971f6b9..22f7ee4c 100644
--- a/tests/unit/hooks/data_source/test_postgresql.py
+++ b/tests/unit/hooks/data_source/test_postgresql.py
@@ -279,7 +279,7 @@ def test_dump_data_sources_runs_pg_dump_for_each_database():
         [
             module.borgmatic.actions.restore.Dump('postgresql_databases', 'foo'),
             module.borgmatic.actions.restore.Dump('postgresql_databases', 'bar'),
-        ]
+        ],
     ).once()
 
     assert (
@@ -350,7 +350,7 @@ def test_dump_data_sources_with_duplicate_dump_skips_pg_dump():
         [
             module.borgmatic.actions.restore.Dump('postgresql_databases', 'foo'),
             module.borgmatic.actions.restore.Dump('postgresql_databases', 'bar'),
-        ]
+        ],
     ).once()
 
     assert (
@@ -436,8 +436,10 @@ def test_dump_data_sources_runs_pg_dump_with_hostname_and_port():
         '/run/borgmatic',
         'postgresql_databases',
         [
-            module.borgmatic.actions.restore.Dump('postgresql_databases', 'foo', 'database.example.org', 5433),
-        ]
+            module.borgmatic.actions.restore.Dump(
+                'postgresql_databases', 'foo', 'database.example.org', 5433
+            ),
+        ],
     ).once()
 
     assert module.dump_data_sources(
@@ -490,7 +492,7 @@ def test_dump_data_sources_runs_pg_dump_with_username_and_password():
         'postgresql_databases',
         [
             module.borgmatic.actions.restore.Dump('postgresql_databases', 'foo'),
-        ]
+        ],
     ).once()
 
     assert module.dump_data_sources(
@@ -543,7 +545,7 @@ def test_dump_data_sources_with_username_injection_attack_gets_escaped():
         'postgresql_databases',
         [
             module.borgmatic.actions.restore.Dump('postgresql_databases', 'foo'),
-        ]
+        ],
     ).once()
 
     assert module.dump_data_sources(
@@ -591,7 +593,7 @@ def test_dump_data_sources_runs_pg_dump_with_directory_format():
         'postgresql_databases',
         [
             module.borgmatic.actions.restore.Dump('postgresql_databases', 'foo'),
-        ]
+        ],
     ).once()
 
     assert (
@@ -645,7 +647,7 @@ def test_dump_data_sources_runs_pg_dump_with_string_compression():
         'postgresql_databases',
         [
             module.borgmatic.actions.restore.Dump('postgresql_databases', 'foo'),
-        ]
+        ],
     ).once()
 
     assert (
@@ -699,7 +701,7 @@ def test_dump_data_sources_runs_pg_dump_with_integer_compression():
         'postgresql_databases',
         [
             module.borgmatic.actions.restore.Dump('postgresql_databases', 'foo'),
-        ]
+        ],
     ).once()
 
     assert (
@@ -752,7 +754,7 @@ def test_dump_data_sources_runs_pg_dump_with_options():
         'postgresql_databases',
         [
             module.borgmatic.actions.restore.Dump('postgresql_databases', 'foo'),
-        ]
+        ],
     ).once()
 
     assert module.dump_data_sources(
@@ -791,7 +793,7 @@ def test_dump_data_sources_runs_pg_dumpall_for_all_databases():
         'postgresql_databases',
         [
             module.borgmatic.actions.restore.Dump('postgresql_databases', 'all'),
-        ]
+        ],
     ).once()
 
     assert module.dump_data_sources(
@@ -842,7 +844,7 @@ def test_dump_data_sources_runs_non_default_pg_dump():
         'postgresql_databases',
         [
             module.borgmatic.actions.restore.Dump('postgresql_databases', 'foo'),
-        ]
+        ],
     ).once()
 
     assert module.dump_data_sources(
diff --git a/tests/unit/hooks/data_source/test_sqlite.py b/tests/unit/hooks/data_source/test_sqlite.py
index e1dcd510..3531c975 100644
--- a/tests/unit/hooks/data_source/test_sqlite.py
+++ b/tests/unit/hooks/data_source/test_sqlite.py
@@ -31,7 +31,7 @@ def test_dump_data_sources_logs_and_skips_if_dump_already_exists():
         'sqlite_databases',
         [
             module.borgmatic.actions.restore.Dump('sqlite_databases', 'database'),
-        ]
+        ],
     ).once()
 
     assert (
@@ -69,7 +69,7 @@ def test_dump_data_sources_dumps_each_database():
         [
             module.borgmatic.actions.restore.Dump('sqlite_databases', 'database1'),
             module.borgmatic.actions.restore.Dump('sqlite_databases', 'database2'),
-        ]
+        ],
     ).once()
 
     assert (
@@ -113,7 +113,7 @@ def test_dump_data_sources_with_path_injection_attack_gets_escaped():
         'sqlite_databases',
         [
             module.borgmatic.actions.restore.Dump('sqlite_databases', 'database1'),
-        ]
+        ],
     ).once()
 
     assert (
@@ -162,7 +162,7 @@ def test_dump_data_sources_runs_non_default_sqlite_with_path_injection_attack_ge
         'sqlite_databases',
         [
             module.borgmatic.actions.restore.Dump('sqlite_databases', 'database1'),
-        ]
+        ],
     ).once()
 
     assert (
@@ -197,7 +197,7 @@ def test_dump_data_sources_with_non_existent_path_warns_and_dumps_database():
         'sqlite_databases',
         [
             module.borgmatic.actions.restore.Dump('sqlite_databases', 'database1'),
-        ]
+        ],
     ).once()
 
     assert (
@@ -234,7 +234,7 @@ def test_dump_data_sources_with_name_all_warns_and_dumps_all_databases():
         'sqlite_databases',
         [
             module.borgmatic.actions.restore.Dump('sqlite_databases', 'all'),
-        ]
+        ],
     ).once()
 
     assert (