diff --git a/base/main.py b/base/main.py
index 0ce5f1cd..6d59813f 100644
--- a/base/main.py
+++ b/base/main.py
@@ -16,7 +16,7 @@ def __init__(self, request, model, queryset, list_per_page):
         self.params = dict(request.GET.dict())
         self.current_tab = self.params.get(TAB_VAR, None)
         if self.opts.ordering:
-            self.base_ordering = self.opts.ordering
+            self.base_ordering = list(self.opts.ordering)
         if PAGE_VAR in self.params:
             del self.params[PAGE_VAR]
         self.result_objects = self.get_objects(request, queryset)
@@ -31,7 +31,7 @@ def tab_sort(self, queryset):
             result_queryset = result_queryset.order_by(*sort_value, *self.base_ordering)
         else:
             for tab_name, tab_order in self.sorting_tabs.items():
-                if tab_order == self.base_ordering:
+                if list(tab_order) == self.base_ordering:
                     self.current_tab = tab_name
                     break
 
diff --git a/base/tests/models.py b/base/tests/models.py
index 00d5dc0d..a629ebc9 100644
--- a/base/tests/models.py
+++ b/base/tests/models.py
@@ -7,6 +7,9 @@ class Fish(models.Model):
     name = models.CharField(max_length=255)
     price = models.IntegerField()
 
+    class Meta:
+        ordering = ("name",)
+
 
 class Food(models.Model):
     name = models.CharField(max_length=50)
diff --git a/base/tests/tests.py b/base/tests/tests.py
index 6df8b699..c18b0245 100644
--- a/base/tests/tests.py
+++ b/base/tests/tests.py
@@ -1,10 +1,78 @@
 from django.test import RequestFactory, TestCase
 
+from base.main import ObjectList
 from base.pagination import Pagination
 
 from .models import Fish
 
 
+class FishList(ObjectList):
+    sorting_tabs = {
+        "name_asc": ("name",),
+        "high_price": ("-price",),
+        "low_price": ("price",),
+    }
+
+
+class ObjectListTests(TestCase):
+
+    @classmethod
+    def setUpTestData(cls):
+        fishs = [
+            Fish(name="Atlantic Salmon", price=80000),
+            Fish(name="Bluefin Tuna", price=500000),
+            Fish(name="Giant Squid", price=300000),
+            Fish(name="King Crab", price=200000),
+            Fish(name="Live Abalone", price=80000),
+            Fish(name="Longtooth Grouper", price=250000),
+            Fish(name="Red Seabream", price=90000),
+            Fish(name="Tiger Prawn", price=70000),
+            Fish(name="Wild Flatfish", price=180000),
+            Fish(name="Yellow Corvina", price=150000),
+        ]
+        Fish.objects.bulk_create(fishs)
+        cls.queryset = Fish.objects.all()
+        cls.fish_list = list(cls.queryset)
+        cls.factory = RequestFactory()
+
+    def test_objects_paginate(self):
+        request = self.factory.get("?page=2")
+        object_list = ObjectList(request, Fish, self.queryset, 2)
+        fish_names = [fish.name for fish in object_list]
+        self.assertEqual(len(fish_names), 2)
+        self.assertEqual(fish_names[0], "Giant Squid")
+        self.assertEqual(fish_names[1], "King Crab")
+
+        request = self.factory.get("?page=4")
+        object_list = ObjectList(request, Fish, self.queryset, 3)
+        fish_names = [fish.name for fish in object_list]
+        self.assertEqual(len(fish_names), 1)
+        self.assertEqual(fish_names[0], "Yellow Corvina")
+
+    def test_select_default_tab(self):
+        request = self.factory.get("")
+        object_list = FishList(request, Fish, self.queryset, 5)
+        self.assertEqual(object_list.base_ordering, ["name"])
+        self.assertEqual(object_list.current_tab, "name_asc")
+
+    def test_objects_tab_sorting(self):
+        request = self.factory.get("?tab=high_price")
+        object_list = FishList(request, Fish, self.queryset, 5)
+        self.assertEqual(object_list.current_tab, "high_price")
+        high_price_fishs = list(object_list)
+        self.assertEqual(high_price_fishs[0].name, "Bluefin Tuna")
+        self.assertEqual(high_price_fishs[1].name, "Giant Squid")
+        self.assertEqual(high_price_fishs[2].name, "Longtooth Grouper")
+
+        request = self.factory.get("?tab=low_price")
+        object_list = FishList(request, Fish, self.queryset, 5)
+        self.assertEqual(object_list.current_tab, "low_price")
+        low_price_fishs = list(object_list)
+        self.assertEqual(low_price_fishs[0].name, "Tiger Prawn")
+        self.assertEqual(low_price_fishs[1].name, "Atlantic Salmon")
+        self.assertEqual(low_price_fishs[2].name, "Live Abalone")
+
+
 class PaginationTestCase(TestCase):
     @classmethod
     def setUpTestData(cls):