Add FileReader test

test/test_filereader.py

@@ -0,0 +1,21 @@
+import unittest
+import tempfile
+
+from dsmr_parser.clients.filereader import FileReader
+from dsmr_parser.telegram_specifications import V5
+from test.example_telegrams import TELEGRAM_V5
+
+
+class FileReaderTest(unittest.TestCase):
+    def test_read_as_object(self):
+        with tempfile.NamedTemporaryFile() as file:
+            with open(file.name, "w") as f:
+                f.write(TELEGRAM_V5)
+
+            telegrams = []
+            reader = FileReader(file=file.name, telegram_specification=V5)
+            # Call
+            for telegram in reader.read_as_object():
+                telegrams.append(telegram)
+
+            self.assertEqual(len(telegrams), 1)