Added unittest for utils module

test/test_utils.py

@@ -0,0 +1,11 @@
+import pytest
+from updater import utils
+
+@pytest.mark.parametrize("number_of_bytes, expected_result", [
+        (11, "11"),
+        (20000000, "19.07Mb"),
+        (2000000000, "1.86Gb"),
+        ])
+def test_convert_bytes(number_of_bytes, expected_result):
+    result = utils.convert_bytes(number_of_bytes)
+    assert result == expected_result