Add issue 185 tests

Issue: #185

example/build.gradle

@@ -335,7 +335,7 @@ openApiGenerator {
             enableValidation = true
             builderMethodPrefix = "set"
         }
-        ['190', '191', '192', '193', '195'].forEach {issueNumber -> {
+        ['185', '190', '191', '192', '193', '195'].forEach {issueNumber -> {
             "${issueNumber}" {
                 sourceSet = 'main'
                 inputSpec = "$projectDir/src/main/resources/issues/openapi-issue-${issueNumber}.yml"

example/src/main/resources/issues/openapi-issue-185.yml

@@ -0,0 +1,23 @@
+openapi: "3.0.0"
+info: { }
+
+paths: { }
+
+components:
+  schemas:
+    User:
+      allOf:
+        - $ref: '#/components/schemas/UserBase'
+      required:
+        -  name
+      properties:
+        name:
+          type: string
+
+    UserBase:
+      type: object
+      required:
+        - id
+      properties:
+        id:
+          type: integer

example/src/test/java/com/github/muehmar/gradle/openapi/issue185/Issue185Test.java

@@ -0,0 +1,63 @@
+package com.github.muehmar.gradle.openapi.issue185;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.github.muehmar.gradle.openapi.util.MapperFactory;
+import java.util.Collections;
+import org.junit.jupiter.api.Test;
+
+public class Issue185Test {
+
+  private static final ObjectMapper MAPPER = MapperFactory.mapper();
+
+  @Test
+  void
+      userDtoBuilder_when_userBaseDtoHasAdditionalNameProperty_then_additionalNamePropertyDiscarded()
+          throws JsonProcessingException {
+    final UserBaseDto userBaseDto =
+        UserBaseDto.userBaseDtoBuilder()
+            .setId(1234)
+            .andOptionals()
+            .addAdditionalProperty("name", "additional-property-name")
+            .build();
+    final UserDto userDto =
+        UserDto.userDtoBuilder().setUserBaseDto(userBaseDto).setName("name").build();
+
+    assertEquals(Collections.emptyMap(), userDto.getAdditionalProperties());
+    assertEquals("{\"id\":1234,\"name\":\"name\"}", MAPPER.writeValueAsString(userDto));
+  }
+
+  @Test
+  void userDtoBuilder_when_addAdditionalNameProperty_then_additionalNamePropertyDiscarded()
+      throws JsonProcessingException {
+    final UserBaseDto userBaseDto = UserBaseDto.userBaseDtoBuilder().setId(1234).build();
+    final UserDto userDto =
+        UserDto.userDtoBuilder()
+            .setUserBaseDto(userBaseDto)
+            .setName("name")
+            .andOptionals()
+            .addAdditionalProperty("name", "additional-property-name")
+            .build();
+
+    assertEquals(Collections.emptyMap(), userDto.getAdditionalProperties());
+    assertEquals("{\"id\":1234,\"name\":\"name\"}", MAPPER.writeValueAsString(userDto));
+  }
+
+  @Test
+  void userDtoBuilder_when_addAdditionalIdProperty_then_additionalIdPropertyDiscarded()
+      throws JsonProcessingException {
+    final UserBaseDto userBaseDto = UserBaseDto.userBaseDtoBuilder().setId(1234).build();
+    final UserDto userDto =
+        UserDto.userDtoBuilder()
+            .setUserBaseDto(userBaseDto)
+            .setName("name")
+            .andOptionals()
+            .addAdditionalProperty("id", "additional-property-id")
+            .build();
+
+    assertEquals(Collections.emptyMap(), userDto.getAdditionalProperties());
+    assertEquals("{\"id\":1234,\"name\":\"name\"}", MAPPER.writeValueAsString(userDto));
+  }
+}