starting to migrate to the unittest module

tests/tests.py

@@ -0,0 +1,22 @@
+import os
+import sys
+import unittest
+import tempfile
+
+samples_dir = os.path.join(sys.path[0], "sample_configs")
+CONFIG_FILES = list(os.path.join(samples_dir, file) for file in os.listdir(samples_dir))
+
+
+class ReadWriteTest(unittest.TestCase):
+    def setUp(self):
+        self.write_file = tempfile.TemporaryFile(mode="r+")
+
+    def tearDown(self):
+        self.write_file.close()
+
+
+class TestTempFile(ReadWriteTest):
+    def test_me(self):
+        self.write_file.write("hello")
+        self.write_file.seek(0)
+        self.assertEqual(self.write_file.read(), "hello")