add tests for Value

Author: timgraham

tests/expressions_/__init__.py

@@ -0,0 +1,47 @@
+import datetime
+import uuid
+from decimal import Decimal
+
+from bson import Decimal128
+from django.db.models import Value
+from django.test import SimpleTestCase
+
+
+class ValueTests(SimpleTestCase):
+    def test_date(self):
+        self.assertEqual(
+            Value(datetime.date(2025, 1, 1)).as_mql(None, None),
+            {"$literal": datetime.datetime(2025, 1, 1)},
+        )
+
+    def test_datetime(self):
+        self.assertEqual(
+            Value(datetime.datetime(2025, 1, 1, 9, 8, 7)).as_mql(None, None),
+            {"$literal": datetime.datetime(2025, 1, 1)},
+        )
+
+    def test_decimal(self):
+        self.assertEqual(Value(Decimal("1.0")).as_mql(None, None), {"$literal": Decimal128("1.0")})
+
+    def test_time(self):
+        self.assertEqual(
+            Value(datetime.time(9, 8, 7)).as_mql(None, None),
+            {"$literal": datetime.datetime(1, 1, 1, 9, 8, 7)},
+        )
+
+    def test_timedelta(self):
+        self.assertEqual(
+            Value(datetime.timedelta(3600)).as_mql(None, None), {"$literal": 311040000000.0}
+        )
+
+    def test_int(self):
+        self.assertEqual(Value(1).as_mql(None, None), {"$literal": 1})
+
+    def test_str(self):
+        self.assertEqual(Value("foo").as_mql(None, None), {"$literal": "foo"})
+
+    def test_uuid(self):
+        value = uuid.UUID(int=1)
+        self.assertEqual(
+            Value(value).as_mql(None, None), {"$literal": "00000000000000000000000000000001"}
+        )