From 209e1eb01ed65941b3b75a0065f6a39d63cb62ab Mon Sep 17 00:00:00 2001
From: eanea <thenesen@yandex.ru>
Date: Tue, 10 Oct 2023 18:42:39 +0300
Subject: [PATCH] 3234: add a test

---
 .../expected_nullable_option_class_field.yml  | 54 +++++++++++++++++++
 .../tapir/docs/openapi/VerifyYamlTest.scala   | 14 +++++
 2 files changed, 68 insertions(+)
 create mode 100644 docs/openapi-docs/src/test/resources/expected_nullable_option_class_field.yml

diff --git a/docs/openapi-docs/src/test/resources/expected_nullable_option_class_field.yml b/docs/openapi-docs/src/test/resources/expected_nullable_option_class_field.yml
new file mode 100644
index 0000000000..0a514d8901
--- /dev/null
+++ b/docs/openapi-docs/src/test/resources/expected_nullable_option_class_field.yml
@@ -0,0 +1,54 @@
+openapi: 3.1.0
+info:
+  title: ClassWithOptionClassField
+  version: '1.0'
+paths:
+  /:
+    post:
+      operationId: postRoot
+      requestBody:
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/ClassWithOptionClassField'
+        required: true
+      responses:
+        '200':
+          description: ''
+          content:
+            text/plain:
+              schema:
+                type: string
+        '400':
+          description: 'Invalid value for: body'
+          content:
+            text/plain:
+              schema:
+                type: string
+components:
+  schemas:
+    Bar:
+      required:
+        - bar
+      type: object
+      properties:
+        bar:
+          type: integer
+          format: int32
+    ClassWithOptionClassField:
+      required:
+        - requiredStringField
+      type: object
+      properties:
+        optionalIntField:
+          required:
+            - bar
+          type:
+            - object
+            - 'null'
+          properties:
+            bar:
+              type: integer
+              format: int32
+        requiredStringField:
+          type: string
diff --git a/docs/openapi-docs/src/test/scalajvm/sttp/tapir/docs/openapi/VerifyYamlTest.scala b/docs/openapi-docs/src/test/scalajvm/sttp/tapir/docs/openapi/VerifyYamlTest.scala
index 52bbdd0391..2ea39b775a 100644
--- a/docs/openapi-docs/src/test/scalajvm/sttp/tapir/docs/openapi/VerifyYamlTest.scala
+++ b/docs/openapi-docs/src/test/scalajvm/sttp/tapir/docs/openapi/VerifyYamlTest.scala
@@ -666,6 +666,20 @@ class VerifyYamlTest extends AnyFunSuite with Matchers {
     actualYamlNoIndent shouldBe expectedYaml
   }
 
+  test("should mark optional class fields as nullable by inlining them when configured to do so") {
+    case class Bar(bar: Int)
+    case class ClassWithOptionClassField(optionalIntField: Option[Bar], requiredStringField: String)
+
+    val e = endpoint.in(jsonBody[ClassWithOptionClassField]).out(stringBody).post
+    val expectedYaml = load("expected_nullable_option_class_field.yml")
+
+    val options = OpenAPIDocsOptions.default.copy(markOptionsAsNullable = true)
+
+    val actualYaml = OpenAPIDocsInterpreter(options).toOpenAPI(e, Info("ClassWithOptionClassField", "1.0")).toYaml
+    val actualYamlNoIndent = noIndentation(actualYaml)
+    actualYamlNoIndent shouldBe expectedYaml
+  }
+
   test("should generate default and example values for nested optional fields") {
     case class Nested(nestedValue: String)
     case class ClassWithNestedOptionalField(