refactored to use is_valid_relation instead of post

awx/main/tests/functional/conftest.py

@@ -511,6 +511,14 @@ def group(inventory):
     return inventory.groups.create(name='single-group')
 
 
+@pytest.fixture
+def constructed_inventory(organization):
+    """
+    creates a new constructed inventory source
+    """
+    return Inventory.objects.create(name='dummy1', kind='constructed', organization=organization)
+
+
 @pytest.fixture
 def inventory_source(inventory):
     # by making it ec2, the credential is not required