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Diffstat (limited to 'tests/aggregation')
| -rw-r--r-- | tests/aggregation/tests.py | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/tests/aggregation/tests.py b/tests/aggregation/tests.py index 8cf0596347..c3f7998f60 100644 --- a/tests/aggregation/tests.py +++ b/tests/aggregation/tests.py @@ -1186,3 +1186,12 @@ class AggregateTestCase(TestCase): ).filter(rating_or_num_awards__gt=F('num_awards')).order_by('num_awards') self.assertQuerysetEqual( qs2, [1, 3], lambda v: v.num_awards) + + def test_arguments_must_be_expressions(self): + msg = 'QuerySet.aggregate() received non-expression(s): %s.' + with self.assertRaisesMessage(TypeError, msg % FloatField()): + Book.objects.aggregate(FloatField()) + with self.assertRaisesMessage(TypeError, msg % True): + Book.objects.aggregate(is_book=True) + with self.assertRaisesMessage(TypeError, msg % ', '.join([str(FloatField()), 'True'])): + Book.objects.aggregate(FloatField(), Avg('price'), is_book=True) |