diff --git a/specifyweb/specify/tests/test_record_sets.py b/specifyweb/specify/tests/test_record_sets.py
new file mode 100644
index 00000000000..5b60da8720a
--- /dev/null
+++ b/specifyweb/specify/tests/test_record_sets.py
@@ -0,0 +1,74 @@
+from specifyweb.specify.tests.test_api import ApiTests
+from specifyweb.specify.models import Recordset, Recordsetitem, Collectionobject
+
+
+class RecordSetCreationTests(ApiTests):
+
+    def test_create_record_set_with_multiple_records(self):
+        """Create a record set and add multiple Collection Objects to it."""
+        recordset = Recordset.objects.create(
+            collectionmemberid=self.collection.id,
+            dbtableid=Collectionobject.specify_model.tableId,
+            name="Test RS with multiple COs",
+            type=0,
+            specifyuser=self.specifyuser,
+        )
+
+        co_ids = [co.id for co in self.collectionobjects]
+
+        Recordsetitem.objects.bulk_create([
+            Recordsetitem(recordset=recordset, recordid=co_id)
+            for co_id in co_ids
+        ])
+
+        self.assertEqual(recordset.recordsetitems.count(), len(co_ids))
+
+        rs_item_ids = set(
+            recordset.recordsetitems.values_list("recordid", flat=True)
+        )
+        self.assertEqual(rs_item_ids, set(co_ids))
+
+    def test_add_existing_record_to_record_set(self):
+        """Add an existing Collection Object to a record set."""
+        recordset = Recordset.objects.create(
+            collectionmemberid=self.collection.id,
+            dbtableid=Collectionobject.specify_model.tableId,
+            name="Test RS add existing",
+            type=0,
+            specifyuser=self.specifyuser,
+        )
+
+        self.assertEqual(recordset.recordsetitems.count(), 0)
+
+        existing_co = self.collectionobjects[0]
+        recordset.recordsetitems.create(recordid=existing_co.id)
+
+        self.assertEqual(recordset.recordsetitems.count(), 1)
+        self.assertEqual(
+            recordset.recordsetitems.first().recordid, existing_co.id
+        )
+
+    def test_create_record_set_from_query_results(self):
+        """Simulate creating a record set from query results by adding
+        records that match a query (in this case, all COs in the collection)."""
+        recordset = Recordset.objects.create(
+            collectionmemberid=self.collection.id,
+            dbtableid=Collectionobject.specify_model.tableId,
+            name="Test RS from query",
+            type=0,
+            specifyuser=self.specifyuser,
+        )
+
+        matching_cos = Collectionobject.objects.filter(
+            collection=self.collection
+        )
+
+        Recordsetitem.objects.bulk_create([
+            Recordsetitem(recordset=recordset, recordid=co.id)
+            for co in matching_cos
+        ])
+
+        self.assertEqual(
+            recordset.recordsetitems.count(),
+            matching_cos.count(),
+        )
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