Add test for old upsert syntax

Author: Photonios

tests/test_upsert.py

@@ -0,0 +1,51 @@
+from django.db import models
+
+from psqlextra import HStoreField
+from psqlextra.query import ConflictAction
+
+from .fake_model import get_fake_model
+
+
+def test_upsert():
+    """Tests whether simple upserts works correctly."""
+
+    model = get_fake_model({
+        'title': HStoreField(uniqueness=['key1']),
+        'cookies': models.CharField(max_length=255, null=True)
+    })
+
+    obj1 = (
+        model.objects
+        .upsert_and_get(
+            conflict_target=[('title', 'key1')],
+            fields=dict(
+                title={'key1': 'beer'},
+                cookies='cheers'
+            )
+        )
+    )
+
+    obj1.refresh_from_db()
+    assert obj1.title['key1'] == 'beer'
+    assert obj1.cookies == 'cheers'
+
+    obj2 = (
+        model.objects
+        .upsert_and_get(
+            conflict_target=[('title', 'key1')],
+            fields=dict(
+                title={'key1': 'beer'},
+                cookies='choco'
+            )
+        )
+    )
+
+    obj1.refresh_from_db()
+    obj2.refresh_from_db()
+
+    # assert both objects are the same
+    assert obj1.id == obj2.id
+    assert obj1.title['key1'] == 'beer'
+    assert obj1.cookies == 'choco'
+    assert obj2.title['key1'] == 'beer'
+    assert obj2.cookies == 'choco'