Add tests for typenames and aliases

tests/codegen/conftest.py

@@ -134,9 +134,13 @@ def list_life() -> LifeContainer[Person, Animal]:
         return LifeContainer([person], [dinosaur])
 
     @strawberry.field
-    def one_of(value: OneOfInput) -> str:
+    def one_of(self, value: OneOfInput) -> str:
         return "some value"
 
+    @strawberry.field
+    def one_of_typename(self, value: OneOfInput) -> PersonOrAnimal:
+        return Person(name="Name", age=22)
+
 
 @strawberry.input
 class BlogPostInput:

tests/codegen/queries/oneof_typename.graphql

@@ -0,0 +1,8 @@
+query OneOfTypenameTest($value: OneOfInput!) {
+  alias: oneOfTypename(value: $value) {
+    ... on Person {
+      name
+      age
+    }
+  }
+}

tests/codegen/snapshots/python/oneof_typename.py

@@ -0,0 +1,19 @@
+from typing import Union
+
+class OneOfTypenameTestResultOneOfTypenamePerson:
+    # typename: Person
+    name: str
+    age: int
+
+class OneOfTypenameTestResult:
+    # alias for one_of_typename
+    alias: OneOfTypenameTestResultOneOfTypenamePerson
+
+class OneOfInputA:
+    a: str
+class OneOfInputB:
+    b: str
+OneOfInput = Union[OneOfInputA,OneOfInputB]
+
+class OneOfTypenameTestVariables:
+    value: OneOfInput

tests/codegen/snapshots/typescript/oneof_typename.ts

@@ -0,0 +1,21 @@
+type OneOfTypenameTestResultOneOfTypenamePerson = {
+    name: string
+    age: number
+}
+
+type OneOfTypenameTestResult = {
+    // alias for one_of_typename
+    alias: OneOfTypenameTestResultOneOfTypenamePerson
+}
+
+type OneOfInput = {
+    a: string,
+    b: never
+} | {
+    a: never,
+    b: string
+}
+
+type OneOfTypenameTestVariables = {
+    value: OneOfInput
+}