diff --git a/conftest.py b/conftest.py
new file mode 100644
index 0000000000..630ff0ba31
--- /dev/null
+++ b/conftest.py
@@ -0,0 +1,22 @@
+import logging
+import pytest
+from mishards import settings, db, create_app
+
+logger = logging.getLogger(__name__)
+
+def clear_data(session):
+    meta = db.metadata
+    for table in reversed(meta.sorted_tables):
+        session.execute(table.delete())
+    session.commit()
+
+# @pytest.fixture(scope="module")
+@pytest.fixture
+def app(request):
+    app = create_app(settings.TestingConfig)
+    db.drop_all()
+    db.create_all()
+
+    yield app
+
+    db.drop_all()
diff --git a/mishards/test_connections.py b/mishards/test_connections.py
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/mishards/test_models.py b/mishards/test_models.py
new file mode 100644
index 0000000000..85dcc246aa
--- /dev/null
+++ b/mishards/test_models.py
@@ -0,0 +1,38 @@
+import logging
+import pytest
+from mishards.factories import TableFiles, Tables, TableFilesFactory, TablesFactory
+from mishards import db, create_app, settings
+from mishards.factories import (
+            Tables, TableFiles,
+            TablesFactory, TableFilesFactory
+        )
+
+logger = logging.getLogger(__name__)
+
+@pytest.mark.usefixtures('app')
+class TestModels:
+    def test_files_to_search(self):
+        table = TablesFactory()
+        new_files_cnt = 5
+        to_index_cnt = 10
+        raw_cnt = 20
+        backup_cnt = 12
+        to_delete_cnt = 9
+        index_cnt = 8
+        new_index_cnt = 6
+        new_merge_cnt = 11
+
+        new_files = TableFilesFactory.create_batch(new_files_cnt, table=table, file_type=TableFiles.FILE_TYPE_NEW, date=110)
+        to_index_files = TableFilesFactory.create_batch(to_index_cnt, table=table, file_type=TableFiles.FILE_TYPE_TO_INDEX, date=110)
+        raw_files = TableFilesFactory.create_batch(raw_cnt, table=table, file_type=TableFiles.FILE_TYPE_RAW, date=120)
+        backup_files = TableFilesFactory.create_batch(backup_cnt, table=table, file_type=TableFiles.FILE_TYPE_BACKUP, date=110)
+        index_files = TableFilesFactory.create_batch(index_cnt, table=table, file_type=TableFiles.FILE_TYPE_INDEX, date=110)
+        new_index_files = TableFilesFactory.create_batch(new_index_cnt, table=table, file_type=TableFiles.FILE_TYPE_NEW_INDEX, date=110)
+        new_merge_files = TableFilesFactory.create_batch(new_merge_cnt, table=table, file_type=TableFiles.FILE_TYPE_NEW_MERGE, date=110)
+        to_delete_files = TableFilesFactory.create_batch(to_delete_cnt, table=table, file_type=TableFiles.FILE_TYPE_TO_DELETE, date=110)
+        assert table.files_to_search().count() == raw_cnt + index_cnt + to_index_cnt
+
+        assert table.files_to_search([(100, 115)]).count() == index_cnt + to_index_cnt
+        assert table.files_to_search([(111, 120)]).count() == 0
+        assert table.files_to_search([(111, 121)]).count() == raw_cnt
+        assert table.files_to_search([(110, 121)]).count() == raw_cnt + index_cnt + to_index_cnt
diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 0000000000..4a88432914
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1,4 @@
+[tool:pytest]
+testpaths = mishards
+log_cli=true
+log_cli_level=info