✅ add simple test to verify feature

Author: Grogdunn

models/spring-ai-azure-openai/src/test/java/org/springframework/ai/azure/openai/function/AzureOpenAiChatClientFunctionCallIT.java

@@ -75,6 +75,31 @@ void functionCallTest() {
 		assertThat(response.getResult().getOutput().getContent()).containsAnyOf("15.0", "15");
 	}
 
+	@Test
+	void functionCallWithoutCompleteRoundTrip() {
+
+		UserMessage userMessage = new UserMessage("What's the weather like in San Francisco?");
+
+		List<Message> messages = new ArrayList<>(List.of(userMessage));
+
+		final var spyingMockWeatherService = new SpyingMockWeatherService();
+		var promptOptions = AzureOpenAiChatOptions.builder()
+			.withDeploymentName("gpt-4-0125-preview")
+			.withFunctionCallbacks(List.of(FunctionCallbackWrapper.builder(spyingMockWeatherService)
+				.withName("getCurrentWeather")
+				.withDescription("Get the current weather in a given location")
+				.withResponseConverter((response) -> "" + response.temp() + response.unit())
+				.build()))
+			.withCompleteRoundTrip(false)
+			.build();
+
+		ChatResponse response = chatClient.call(new Prompt(messages, promptOptions));
+
+		logger.info("Response: {}", response);
+		final var interceptedRequest = spyingMockWeatherService.getInterceptedRequest();
+		assertThat(interceptedRequest.location()).containsIgnoringCase("San Francisco");
+	}
+
 	@SpringBootConfiguration
 	public static class TestConfiguration {
 

models/spring-ai-azure-openai/src/test/java/org/springframework/ai/azure/openai/function/SpyingMockWeatherService.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2023 - 2024 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.ai.azure.openai.function;
+
+import java.util.function.Function;
+
+public class SpyingMockWeatherService implements Function<MockWeatherService.Request, MockWeatherService.Response> {
+
+	private final MockWeatherService inner = new MockWeatherService();
+
+	private MockWeatherService.Request interceptedRequest = null;
+
+	@Override
+	public MockWeatherService.Response apply(MockWeatherService.Request request) {
+		interceptedRequest = request;
+		return inner.apply(request);
+	}
+
+	public MockWeatherService.Request getInterceptedRequest() {
+		return interceptedRequest;
+	}
+
+}