fix: move version cheker out of server class

backend/test_version_checker.py

@@ -1,5 +1,5 @@
 import pytest
-from version_checker import VersionChecker
+from version_checker import VersionChecker, is_semver_greater
 from unittest.mock import MagicMock, mock_open
 
 
@@ -53,3 +53,32 @@ def test_get_latest_version_with_bad_api_response_returns_file_version(
 def test_get_latest_version_with_api_url(mock_api_response):
     vc = VersionChecker(api_url="http://api.url")
     assert vc.get_latest_version() == "2.0.0"
+
+
+def test_versions_higher():
+    assert is_semver_greater("1.0.0", "0.0.0") == True
+    assert is_semver_greater("0.1.0", "0.0.0") == True
+    assert is_semver_greater("0.0.1", "0.0.0") == True
+    assert is_semver_greater("0.2.0", "0.0.9") == True
+    assert is_semver_greater("0.0.10", "0.0.9") == True
+    assert is_semver_greater("1.0.0", "0.99.99") == True
+    assert is_semver_greater("1.12.0", "1.11.9") == True
+
+
+def test_versions_lower():
+    assert is_semver_greater("0.2.0", "1.0.0") == False
+    assert is_semver_greater("0.0.9", "0.1.0") == False
+    assert is_semver_greater("0.0.9", "0.0.10") == False
+    assert is_semver_greater("1.11.9", "1.12.0") == False
+    assert is_semver_greater("1.11.9", "1.11.10") == False
+    assert is_semver_greater("0.99.99", "1.0.0") == False
+
+
+def test_versions_equal():
+    assert is_semver_greater("0.0.0", "0.0.0") == False
+    assert is_semver_greater("1.0.0", "1.0.0") == False
+    assert is_semver_greater("0.1.0", "0.1.0") == False
+    assert is_semver_greater("0.0.1", "0.0.1") == False
+    assert is_semver_greater("0.2.0", "0.2.0") == False
+    assert is_semver_greater("0.0.10", "0.0.10") == False
+    assert is_semver_greater("1.12.3", "1.12.3") == False

backend/version_checker.py

@@ -16,3 +16,8 @@ def read_version(self):
     def get_latest_version(self):
         response = requests.get(self.api_url).json()
         return response.get("tag_name", self.read_version()).strip("v")
+
+def is_semver_greater(v1, v2):
+    v1 = list(map(int, v1.split(".")))
+    v2 = list(map(int, v2.split(".")))
+    return v1 > v2