diff --git a/tests/BackendTests.py b/tests/BackendTests.py
index cb8f3c8..edc43de 100644
--- a/tests/BackendTests.py
+++ b/tests/BackendTests.py
@@ -1,9 +1,11 @@
 import sys
 import unittest
-from datetime import datetime as ddatetime
+from datetime import datetime as ddatetime, datetime
 from pprint import pprint
 
-from web.run import retrieve_amda_netcdf
+from web.run import retrieve_amda_netcdf, get_data_for_target, _sta_sto
+
+FILE_DATE_FMT = "%Y-%m-%d %H:%M:%S"
 
 
 class BaseTestCase(unittest.TestCase):
@@ -29,12 +31,40 @@ class BaseTestCase(unittest.TestCase):
 class AmdaTestCase(BaseTestCase):
 
     def test_amda_retrieve(self):
-        FILE_DATE_FMT = "%Y-%m-%d %H:%M:%S"
         started_at = ddatetime.strptime("2021-12-17 00:00:00", FILE_DATE_FMT)
         stopped_at = ddatetime.strptime("2021-12-18 00:00:00", FILE_DATE_FMT)
         amda_list = retrieve_amda_netcdf("earth", "omni_hour_all", started_at, stopped_at)
         self.assertEqual(1, len(amda_list))
         self.assertIn('amda-irap-omp-eu-ddservice-base-data-omni-hour-omni202107010-nc', amda_list[0])
 
-    def test_projects(self):
-        self.assertTrue(False)
+    def test_get_data_for_target(self):
+        target_config = {'type': 'planet', 'slug': 'earth', 'name': 'Earth', 'title': 'Earth', 'orbit': {'models': []},
+                         'models': {
+                             'om': [{'slug': 'omni_hour_all', 'parameters': {'pdyn': 'RamP'}},
+                                    {'slug': 'ace_swepam_real_1h',
+                                     'parameters': {'dens': 'Dens', 'vtot': 'Vel', 'temp': 'Temp'}}],
+                             'sa': [{'slug': 'omni_hour_all', 'parameters': {'pdyn': 'RamP'}},
+                                    {'slug': 'ace_swepam_real_1h',
+                                     'parameters': {'dens': 'Dens', 'vtot': 'Vel', 'temp': 'Temp'}}],
+                             'sb': [{'slug': 'omni_hour_all', 'parameters': {'pdyn': 'RamP'}},
+                                    {'slug': 'ace_swepam_real_1h',
+                                     'parameters': {'dens': 'Dens', 'vtot': 'Vel', 'temp': 'Temp'}}]},
+                         'locked': False, 'default': True, 'catalog_layers': {'cmecatalogs': []}}
+
+        started_at = ddatetime.strptime("2021-12-17 00:00:00", FILE_DATE_FMT)
+        stopped_at = ddatetime.strptime("2021-12-18 00:00:00", FILE_DATE_FMT)
+        model = {'parameters': {'dens': 'Dens', 'temp': 'Temp', 'vtot': 'Vel'}, 'slug': 'ace_swepam_real_1h'}
+        s0, s1 = _sta_sto(model, started_at, stopped_at)
+        all_data = get_data_for_target(target_config, 'om', s0, s1 )
+        self.assertEqual(1, len(all_data))
+
+    def test_sta_sto(self):
+        started_at = ddatetime.strptime("2021-12-17 00:00:00", FILE_DATE_FMT)
+        stopped_at = ddatetime.strptime("2021-12-18 00:00:00", FILE_DATE_FMT)
+        model = {'parameters': {'dens': 'Dens', 'temp': 'Temp', 'vtot': 'Vel'}, 'slug': 'ace_swepam_real_1h'}
+
+        s0, s1 = _sta_sto(model, started_at, stopped_at)
+
+        self.assertIsInstance(s0, datetime)
+        self.assertIsInstance(s1, datetime)
+
--
libgit2 0.21.2