diff --git a/README.md b/README.md
index 81a0183..47a931a 100644
--- a/README.md
+++ b/README.md
@@ -35,3 +35,21 @@ pip install -r requirements.txt
 ```
 python src/main.py
 ```
+
+# Development
+
+## Pre commit hooks
+
+We use pre-commit hooks to ensure that the code is formatted correctly and that the tests pass before committing. To install the pre-commit hooks, run the following command:
+
+```
+pre-commit install
+```
+
+## Running tests
+
+To run the tests, use the following command:
+
+```
+python src/run_tests.py
+```
diff --git a/src/run_tests.py b/src/run_tests.py
new file mode 100644
index 0000000..c31a55b
--- /dev/null
+++ b/src/run_tests.py
@@ -0,0 +1,16 @@
+import unittest
+
+from test.test_csv import TestDAQJobStoreCSV
+
+
+def run_tests():
+    test_suite = unittest.TestSuite()
+    loader = unittest.TestLoader()
+    test_suite.addTests(loader.loadTestsFromTestCase(TestDAQJobStoreCSV))
+    return test_suite
+
+
+if __name__ == "__main__":
+    test_suite = run_tests()
+    runner = unittest.TextTestRunner()
+    runner.run(test_suite)
diff --git a/src/test/test_csv.py b/src/test/test_csv.py
new file mode 100644
index 0000000..8e59072
--- /dev/null
+++ b/src/test/test_csv.py
@@ -0,0 +1,108 @@
+import unittest
+from datetime import datetime, timedelta
+from queue import Queue
+from unittest.mock import MagicMock, mock_open, patch
+
+from daq.store.csv import (
+    DAQ_JOB_STORE_CSV_FLUSH_INTERVAL_SECONDS,
+    CSVFile,
+    DAQJobStoreConfigCSV,
+    DAQJobStoreCSV,
+)
+from daq.store.models import DAQJobMessageStore
+
+
+class TestDAQJobStoreCSV(unittest.TestCase):
+    def setUp(self):
+        self.config = MagicMock()
+        self.store = DAQJobStoreCSV(self.config)
+
+    @patch("daq.store.csv.add_date_to_file_name", return_value="test.csv")
+    @patch("builtins.open", new_callable=mock_open)
+    @patch("os.path.exists", return_value=False)
+    @patch("pathlib.Path.touch")
+    def test_handle_message_new_file(
+        self, mock_touch, mock_exists, mock_open, mock_add_date
+    ):
+        message = MagicMock(spec=DAQJobMessageStore)
+        message.store_config = DAQJobStoreConfigCSV(
+            daq_job_store_type="csv", file_path="test.csv", add_date=True
+        )
+        message.keys = ["header1", "header2"]
+        message.data = [["row1_col1", "row1_col2"], ["row2_col1", "row2_col2"]]
+
+        self.store.handle_message(message)
+
+        mock_add_date.assert_called_once_with("test.csv", True)
+        mock_open.assert_called_once_with("test.csv", "a")
+        self.assertIn("test.csv", self.store._open_csv_files)
+        file = self.store._open_csv_files["test.csv"]
+        self.assertEqual(file.write_queue.qsize(), 3)  # 1 header + 2 rows
+
+    @patch("daq.store.csv.add_date_to_file_name", return_value="test.csv")
+    @patch("builtins.open", new_callable=mock_open)
+    @patch("os.path.exists", return_value=True)
+    def test_handle_message_existing_file(self, mock_exists, mock_open, mock_add_date):
+        message = MagicMock(spec=DAQJobMessageStore)
+        message.store_config = DAQJobStoreConfigCSV(
+            daq_job_store_type="csv", file_path="test.csv", add_date=True
+        )
+        message.keys = ["header1", "header2"]
+        message.data = [["row1_col1", "row1_col2"], ["row2_col1", "row2_col2"]]
+
+        self.store.handle_message(message)
+
+        mock_add_date.assert_called_once_with("test.csv", True)
+        mock_open.assert_called_once_with("test.csv", "a")
+        self.assertIn("test.csv", self.store._open_csv_files)
+        file = self.store._open_csv_files["test.csv"]
+        self.assertEqual(file.write_queue.qsize(), 2)  # 2 rows only, no header
+
+    def test_flush(self):
+        file = CSVFile(
+            file=MagicMock(),
+            last_flush_date=datetime.now()
+            - timedelta(seconds=DAQ_JOB_STORE_CSV_FLUSH_INTERVAL_SECONDS + 1),
+            write_queue=Queue(),
+        )
+        result = self.store._flush(file)
+        self.assertTrue(result)
+        file.file.flush.assert_called_once()
+        self.assertAlmostEqual(
+            file.last_flush_date, datetime.now(), delta=timedelta(seconds=1)
+        )
+
+    @patch("csv.writer")
+    def test_store_loop(self, mock_csv_writer):
+        file = CSVFile(
+            file=MagicMock(closed=False),
+            last_flush_date=datetime.now()
+            - timedelta(seconds=DAQ_JOB_STORE_CSV_FLUSH_INTERVAL_SECONDS + 1),
+            write_queue=Queue(),
+        )
+        file.write_queue.put(["row1_col1", "row1_col2"])
+        file.write_queue.put(["row2_col1", "row2_col2"])
+        self.store._open_csv_files["test.csv"] = file
+
+        mock_writer_instance = mock_csv_writer.return_value
+
+        self.store.store_loop()
+
+        mock_writer_instance.writerows.assert_called()
+        self.assertTrue(file.file.flush.called)
+
+    def test_del(self):
+        file = CSVFile(
+            file=MagicMock(closed=False),
+            last_flush_date=datetime.now(),
+            write_queue=Queue(),
+        )
+        self.store._open_csv_files["test.csv"] = file
+
+        del self.store
+
+        file.file.close.assert_called_once()
+
+
+if __name__ == "__main__":
+    unittest.main()