@Test
	protected void testApp() throws Exception {
		mockMvc
				.perform(get("/api-docs"))
				.andExpect(status().isOk())
				.andExpect(jsonPath("$.openapi", is("3.0.1")))
				.andExpect(jsonPath("$.info.title", is("OpenAPI definition")))
				.andExpect(jsonPath("$.info.version", is("v0")))
				.andExpect(jsonPath("$.paths").isEmpty())
				.andExpect(jsonPath("$.components").isEmpty());
	}
givenNoConfiguration_whenGetApiJson_returnsDefaultEmptyDocs - should return
{"openapi":"3.0.1","info":{"title":"OpenAPI definition","version":"v0"},"paths":{},"components":{}}

@throws Exception the exception
springdoc-openapi-tests/springdoc-openapi-javadoc-tests/src/test/java/test/org/springdoc/api/v30/app5/sample/OpenApiResourceNoConfigurationTest.java