Merge remote-tracking branch 'reference/master' into bugfix/1850

1 files changed, 69 insertions, 0 deletions

diff --git a/tests/test_bound_fields.py b/tests/test_bound_fields.py
new file mode 100644
index 00000000..469437e4
--- /dev/null
+++ b/tests/test_bound_fields.py
@@ -0,0 +1,69 @@
+from rest_framework import serializers
+
+
+class TestSimpleBoundField:
+    def test_empty_bound_field(self):
+        class ExampleSerializer(serializers.Serializer):
+            text = serializers.CharField(max_length=100)
+            amount = serializers.IntegerField()
+
+        serializer = ExampleSerializer()
+
+        assert serializer['text'].value == ''
+        assert serializer['text'].errors is None
+        assert serializer['text'].name == 'text'
+        assert serializer['amount'].value is None
+        assert serializer['amount'].errors is None
+        assert serializer['amount'].name == 'amount'
+
+    def test_populated_bound_field(self):
+        class ExampleSerializer(serializers.Serializer):
+            text = serializers.CharField(max_length=100)
+            amount = serializers.IntegerField()
+
+        serializer = ExampleSerializer(data={'text': 'abc', 'amount': 123})
+
+        assert serializer['text'].value == 'abc'
+        assert serializer['text'].errors is None
+        assert serializer['text'].name == 'text'
+        assert serializer['amount'].value is 123
+        assert serializer['amount'].errors is None
+        assert serializer['amount'].name == 'amount'
+
+    def test_error_bound_field(self):
+        class ExampleSerializer(serializers.Serializer):
+            text = serializers.CharField(max_length=100)
+            amount = serializers.IntegerField()
+
+        serializer = ExampleSerializer(data={'text': 'x' * 1000, 'amount': 123})
+        serializer.is_valid()
+
+        assert serializer['text'].value == 'x' * 1000
+        assert serializer['text'].errors == ['Ensure this field has no more than 100 characters.']
+        assert serializer['text'].name == 'text'
+        assert serializer['amount'].value is 123
+        assert serializer['amount'].errors is None
+        assert serializer['amount'].name == 'amount'
+
+
+class TestNestedBoundField:
+    def test_nested_empty_bound_field(self):
+        class Nested(serializers.Serializer):
+            more_text = serializers.CharField(max_length=100)
+            amount = serializers.IntegerField()
+
+        class ExampleSerializer(serializers.Serializer):
+            text = serializers.CharField(max_length=100)
+            nested = Nested()
+
+        serializer = ExampleSerializer()
+
+        assert serializer['text'].value == ''
+        assert serializer['text'].errors is None
+        assert serializer['text'].name == 'text'
+        assert serializer['nested']['more_text'].value == ''
+        assert serializer['nested']['more_text'].errors is None
+        assert serializer['nested']['more_text'].name == 'nested.more_text'
+        assert serializer['nested']['amount'].value is None
+        assert serializer['nested']['amount'].errors is None
+        assert serializer['nested']['amount'].name == 'nested.amount'