@Test
	protected void testApp() throws Exception {
		mockMvc.perform(get(Constants.DEFAULT_API_DOCS_URL)).andExpect(status().isOk())
				.andExpect(jsonPath("$.openapi", is("3.0.1"))).andExpect(jsonPath("$.paths./helloworld.post.responses.200.content.['application/json'].schema.oneOf").isArray()).andExpect(jsonPath("$.paths./helloworld.post.responses.200.content.['application/json'].schema.oneOf[*].$ref", containsInAnyOrder("#/components/schemas/HelloDTO2",
						"#/components/schemas/HelloDTO1")))
				.andExpect(jsonPath("$.paths./helloworld.post.requestBody.content.['application/vnd.v1+json'].schema.$ref", is("#/components/schemas/RequestV1")))
				.andExpect(jsonPath("$.paths./helloworld.post.requestBody.content.['application/vnd.v2+json'].schema.$ref", is("#/components/schemas/RequestV2")))
				.andExpect(jsonPath("$.paths./helloworld.post.responses.400.content.['application/json'].schema.$ref", is("#/components/schemas/ErrorDTO")));

	}
Test app.

@throws Exception the exception
springdoc-openapi-tests/springdoc-openapi-javadoc-tests/src/test/java/test/org/springdoc/api/v30/app44/SpringDocApp44Test.java