Add integration test for discussion in #103

openapi-generator-for-spring-test/src/test/java/de/qaware/openapigeneratorforspring/test/app54/App54.java

@@ -0,0 +1,11 @@
+package de.qaware.openapigeneratorforspring.test.app54;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+class App54 {
+    public static void main(String[] args) {
+        SpringApplication.run(App54.class, args);
+    }
+}

openapi-generator-for-spring-test/src/test/java/de/qaware/openapigeneratorforspring/test/app54/App54Controller.java

@@ -0,0 +1,36 @@
+package de.qaware.openapigeneratorforspring.test.app54;
+
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import lombok.Value;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping
+class App54Controller {
+    @GetMapping("mapping1")
+    public Animal mapping1() {
+        return null;
+    }
+
+    @JsonTypeInfo(use = JsonTypeInfo.Id.NAME, property = "type")
+    @JsonSubTypes({
+            @JsonSubTypes.Type(value = Dog.class, name = "DOG"),
+            @JsonSubTypes.Type(value = Cat.class, name = "CAT"),
+    })
+    private interface Animal {
+
+    }
+
+    @Value
+    private static class Dog {
+        String wuff;
+    }
+
+    @Value
+    private static class Cat {
+        String meow;
+    }
+}

openapi-generator-for-spring-test/src/test/java/de/qaware/openapigeneratorforspring/test/app54/App54Test.java

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+package de.qaware.openapigeneratorforspring.test.app54;
+
+import de.qaware.openapigeneratorforspring.test.AbstractOpenApiGeneratorWebMvcIntTest;
+
+class App54Test extends AbstractOpenApiGeneratorWebMvcIntTest {
+
+}

openapi-generator-for-spring-test/src/test/resources/openApiJson/app54.json

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+{
+  "openapi": "3.0.1",
+  "info": {
+    "title": "API for App54",
+    "version": "unknown"
+  },
+  "paths": {
+    "/mapping1": {
+      "get": {
+        "operationId": "mapping1",
+        "responses": {
+          "200": {
+            "description": "Default response",
+            "content": {
+              "*/*": {
+                "schema": {
+                  "$ref": "#/components/schemas/App54Controller.Animal"
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+  },
+  "components": {
+    "schemas": {
+      "App54Controller.AnimalType": {
+        "type": "string",
+        "enum": [
+          "DOG",
+          "CAT"
+        ]
+      },
+      "App54Controller.Dog": {
+        "type": "object",
+        "properties": {
+          "type": {
+            "$ref": "#/components/schemas/App54Controller.AnimalType"
+          },
+          "wuff": {
+            "type": "string"
+          }
+        }
+      },
+      "App54Controller.Cat": {
+        "type": "object",
+        "properties": {
+          "type": {
+            "$ref": "#/components/schemas/App54Controller.AnimalType"
+          },
+          "meow": {
+            "type": "string"
+          }
+        }
+      },
+      "App54Controller.Animal": {
+        "discriminator": {
+          "propertyName": "type",
+          "mapping": {
+            "DOG": "#/components/schemas/App54Controller.Dog",
+            "CAT": "#/components/schemas/App54Controller.Cat"
+          }
+        },
+        "oneOf": [
+          {
+            "$ref": "#/components/schemas/App54Controller.Dog"
+          },
+          {
+            "$ref": "#/components/schemas/App54Controller.Cat"
+          }
+        ]
+      }
+    }
+  }
+}