Add tests for ArrayField 'overlap' and 'in' subquery lookups

Author: WaVEV

tests/model_fields_/test_arrayfield.py

@@ -634,6 +634,21 @@ def test_overlap_values(self):
             self.objs[:3],
         )
 
+    def test_overlap_empty_values(self):
+        qs = NullableIntegerArrayModel.objects.filter(order__lt=-30)
+        self.assertCountEqual(
+            NullableIntegerArrayModel.objects.filter(
+                field__overlap=qs.values_list("field"),
+            ),
+            [],
+        )
+        self.assertCountEqual(
+            NullableIntegerArrayModel.objects.filter(
+                field__overlap=qs.values("field"),
+            ),
+            [],
+        )
+
     def test_index(self):
         self.assertSequenceEqual(
             NullableIntegerArrayModel.objects.filter(field__0=2), self.objs[1:3]

tests/model_fields_/test_embedded_model_array.py

@@ -520,6 +520,11 @@ def test_subquery_in_lookup(self):
         result = Exhibit.objects.filter(sections__number__in=subquery)
         self.assertCountEqual(result, [self.wonders, self.new_discoveries, self.egypt])
 
+    def test_subquery_empty_in_lookup(self):
+        subquery = Audit.objects.filter(section_number=10).values_list("section_number", flat=True)
+        result = Exhibit.objects.filter(sections__number__in=subquery)
+        self.assertCountEqual(result, [])
+
     def test_array_as_rhs(self):
         result = Exhibit.objects.filter(main_section__number__in=models.F("sections__number"))
         self.assertCountEqual(result, [self.new_discoveries])