started work on implementing the tests

tests.py

@@ -1,5 +1,69 @@
 # uplim/tests.py
 
 from django.test import TestCase
+from django.urls import reverse
+import json
 
-# Create your tests here.
+
+class APIViewsTestCase(TestCase):
+    def setUp(self):
+        # Optionally add fixtures or test data here
+        pass
+
+    def test_pixel_aggregate_view_valid_params(self):
+        """Test PixelAggregateView with valid parameters."""
+        url = reverse("pixel-aggregate")
+        response = self.client.get(url, {"pixel": "123", "survey": "1-4"})
+
+        self.assertEqual(response.status_code, 200)
+        data = json.loads(response.content.decode())
+        self.assertIn("total_counts", data)
+        self.assertIn("total_exposure", data)
+        self.assertIn("pixel_hpid", data)
+        self.assertIn("surveys", data)
+
+    def test_pixel_aggregate_view_missing_params(self):
+        """Test PixelAggregateView with missing parameters."""
+        url = reverse("pixel-aggregate")
+        response = self.client.get(url)
+
+        self.assertEqual(response.status_code, 400)
+        data = json.loads(response.content.decode())
+        self.assertIn("detail", data)
+
+    def test_upper_limit_view_valid_params(self):
+        """Test UpperLimitView with valid parameters."""
+        url = reverse("upper-limit")
+        response = self.client.get(
+            url, {"ra": "10.0", "dec": "20.0", "cl": "0.95", "survey": "1-4"}
+        )
+
+        self.assertEqual(response.status_code, 200)
+        data = json.loads(response.content.decode())
+        # Add assertions based on expected structure
+        self.assertIn("ClassicUpperLimit", data)
+        self.assertIn("BayesianUpperLimit", data)
+        # etc.
+
+    def test_upper_limit_view_missing_params(self):
+        """Test UpperLimitView with missing parameters."""
+        url = reverse("upper-limit")
+        response = self.client.get(url)
+
+        self.assertEqual(response.status_code, 400)
+        data = json.loads(response.content.decode())
+        self.assertIn("error", data)
+
+    def test_stacked_upper_limit_view_valid_params(self):
+        """Test StackedUpperLimitView with valid parameters."""
+        url = reverse("stacked-upper-limit")
+        data = {"ra": [10.0, 20.0], "dec": [15.0, 25.0], "cl": 0.95, "survey": "1-4"}
+        response = self.client.put(
+            url, data=json.dumps(data), content_type="application/json"
+        )
+
+        self.assertEqual(response.status_code, 200)
+        response_data = json.loads(response.content.decode())
+        self.assertIn("ClassicUpperLimit", response_data)
+        self.assertIn("BayesianUpperLimit", response_data)
+        # Add more assertions based on expected structure