default value

Author: commonism

src/aiopenapi3/model.py

@@ -298,8 +298,14 @@ def from_schema(
 
         r: list[_ClassInfo] = list()
 
-        for _type in Model.types(schema):
-            args = dict()
+        types: list[str] = list(Model.types(schema))
+        multi: bool = len(types) > 1
+        for _type in types:
+            args = dict() if multi else None
+            """
+            for schema with multiple types, the default value needs to be attached to the RootModel
+            providing empty args creates a FieldInfo without a default value for the subtypes
+            """
             r.append(Model.createClassInfo(schema, _type, schemanames, discriminators, extra, args))
 
         m = _ClassInfo.collapse(schema, r)
@@ -361,7 +367,6 @@ def createClassInfo(
                     classinfo.root = Annotated[
                         Union[t], Field(discriminator=Model.nameof(schema.discriminator.propertyName))
                     ]
-
                 else:
                     if len(t):
                         classinfo.root = Union[t]
@@ -614,7 +619,7 @@ def createAnnotation(
         return rr
 
     @staticmethod
-    def types(schema: "SchemaType"):
+    def types(schema: "SchemaType") -> typing.Generator[str, None, None]:
         if isinstance(schema.type, str):
             yield schema.type
             if getattr(schema, "nullable", False):

tests/fixtures/schema-type-validators.yaml

@@ -9,6 +9,7 @@ components:
       type: integer
       maximum: 10
       minimum: 10
+      default: 10
     Number:
       type: number
       maximum: 10

tests/schema_test.py

@@ -653,6 +653,8 @@ def test_schema_type_validators(with_schema_type_validators):
     v = t.model_validate("10")
     with pytest.raises(ValidationError):
         v = t.model_validate("9")
+    v = t()
+    assert v.root == 10
 
     t = (m := api.components.schemas["Number"]).get_type()
     v = t.model_validate("10.")