[Backport main] Add less than comparison method for Addon class

Addon.py

@@ -231,6 +231,18 @@ def __eq__(self, other):
             return NotImplemented
         return self.name == other.name and self.branch_display_name == other.branch_display_name
 
+    def __lt__(self, other):
+        if not isinstance(other, Addon):
+            return NotImplemented
+        if self.name == other.name:
+            return self.branch_display_name < other.branch_display_name
+        return self.name < other.name
+
+    def __le__(self, other):
+        if not isinstance(other, Addon):
+            return NotImplemented
+        return self == other or self < other
+
     def __hash__(self):
         return hash((self.name, self.branch_display_name))
 

AddonManagerTest/app/test_addon.py

@@ -389,3 +389,33 @@ def test_try_find_wbname_in_files_variants(self):
 
                     # Assert
                     self.assertEqual(wb_name, "TestWorkbench")
+
+    def test_addon_less_than(self):
+        a = Addon("A")
+        b = Addon("B")
+        self.assertLess(a, b)
+
+        aa = Addon("A", branch="A")
+        ab = Addon("A", branch="B")
+        self.assertLess(aa, ab)
+
+        same = Addon("A", branch="A")
+        self.assertGreaterEqual(same, aa)
+        self.assertGreaterEqual(aa, same)
+
+    def test_addon_less_than_or_equal_to(self):
+        a = Addon("A")
+        b = Addon("B")
+        self.assertLessEqual(a, b)
+
+        aa = Addon("A", branch="A")
+        ab = Addon("A", branch="B")
+        self.assertLessEqual(aa, ab)
+
+        same = Addon("A", branch="A")
+        self.assertLessEqual(same, aa)
+        self.assertLessEqual(aa, same)
+
+        same = Addon("A", branch="A")
+        self.assertTrue(same <= aa)
+        self.assertTrue(aa <= same)