Update Kotlin integration tests

This commit updates the Kotlin integration tests to
leverage the new Kotlin reflection capabilities
allowing to identify required properties.

It also adds a missing jackson-module-kotlin
dependency and refine test implementation to be
closer to the Java ones and use more idiomatic
Kotlin code.

Author: sdeleuze

spring-ai-spring-boot-autoconfigure/pom.xml

@@ -578,6 +578,12 @@
 			<scope>test</scope>
 		</dependency>
 
+		<dependency>
+			<groupId>com.fasterxml.jackson.module</groupId>
+			<artifactId>jackson-module-kotlin</artifactId>
+			<scope>test</scope>
+		</dependency>
+
 	</dependencies>
 
 </project>

spring-ai-spring-boot-autoconfigure/src/test/kotlin/org/springframework/ai/autoconfigure/ollama/tool/FunctionCallbackContextKotlinIT.kt

@@ -39,7 +39,7 @@ class FunctionCallbackResolverKotlinIT : BaseOllamaIT() {
 
 	companion object {
 
-		private val MODEL_NAME = OllamaModel.LLAMA3_2.getName();
+		private val MODEL_NAME = "qwen2.5:3b";
 
 		@JvmStatic
 		@BeforeAll
@@ -72,7 +72,7 @@ class FunctionCallbackResolverKotlinIT : BaseOllamaIT() {
 			val response = chatModel
 					.call(Prompt(listOf(userMessage), OllamaOptions.builder().function("weatherInfo").build()))
 
-			logger.info("Response: " + response)
+			logger.info("Response: $response")
 
 			assertThat(response.getResult().output.text).contains("30", "10", "15")
 		}
@@ -93,10 +93,11 @@ class FunctionCallbackResolverKotlinIT : BaseOllamaIT() {
 				.build()
 
 			val response = chatModel.call(Prompt(listOf(userMessage), functionOptions));
+			val output = response.getResult().output.text
 
-			logger.info("Response: " + response.getResult().getOutput().getText());
+			logger.info("Response: $output");
 
-			assertThat(response.getResult().output.text).contains("30", "10", "15");
+			assertThat(output).contains("30", "10", "15");
 		}
 	}
 

spring-ai-spring-boot-autoconfigure/src/test/kotlin/org/springframework/ai/autoconfigure/ollama/tool/FunctionCallbackKotlinIT.kt

@@ -28,7 +28,6 @@ import org.springframework.ai.chat.prompt.Prompt
 import org.springframework.ai.model.function.FunctionCallback
 import org.springframework.ai.model.function.FunctionCallingOptions
 import org.springframework.ai.ollama.OllamaChatModel
-import org.springframework.ai.ollama.api.OllamaModel
 import org.springframework.ai.ollama.api.OllamaOptions
 import org.springframework.boot.autoconfigure.AutoConfigurations
 import org.springframework.boot.test.context.runner.ApplicationContextRunner
@@ -39,7 +38,7 @@ class FunctionCallbackKotlinIT : BaseOllamaIT() {
 
 	companion object {
 
-		private val MODEL_NAME = OllamaModel.LLAMA3_2.getName();
+		private val MODEL_NAME = "qwen2.5:3b";
 
 		@JvmStatic
 		@BeforeAll
@@ -72,7 +71,7 @@ class FunctionCallbackKotlinIT : BaseOllamaIT() {
 			val response = chatModel
 					.call(Prompt(listOf(userMessage), OllamaOptions.builder().function("WeatherInfo").build()))
 
-			logger.info("Response: " + response)
+			logger.info("Response: $response")
 
 			assertThat(response.getResult().output.text).contains("30", "10", "15")
 		}
@@ -93,10 +92,10 @@ class FunctionCallbackKotlinIT : BaseOllamaIT() {
 				.build()
 
 			val response = chatModel.call(Prompt(listOf(userMessage), functionOptions));
+			val output = response.getResult().output.text
+			logger.info("Response: $output");
 
-			logger.info("Response: " + response.getResult().getOutput().getText());
-
-			assertThat(response.getResult().output.text).contains("30", "10", "15");
+			assertThat(output).contains("30", "10", "15");
 		}
 	}
 

spring-ai-spring-boot-autoconfigure/src/test/kotlin/org/springframework/ai/autoconfigure/ollama/tool/MockKotlinWeatherService.kt

@@ -61,19 +61,16 @@ enum class Unit(val unitName: String) {
 @JsonInclude(Include.NON_NULL)
 @JsonClassDescription("Weather API request")
 data class KotlinRequest(
-	@get:JsonProperty(required = true, value = "location")
+
 	@get:JsonPropertyDescription("The city and state e.g. San Francisco, CA")
-	val location: String = "",
+	val location: String,
 
-	@get:JsonProperty(required = true, value = "lat")
 	@get:JsonPropertyDescription("The city latitude")
-	val lat: Double = 0.0,
+	val lat: Double,
 
-	@get:JsonProperty(required = true, value = "lon")
 	@get:JsonPropertyDescription("The city longitude")
-	val lon: Double = 0.0,
+	val lon: Double,
 
-	@get:JsonProperty(required = true, value = "unit")
 	@get:JsonPropertyDescription("Temperature unit")
 	val unit: Unit = Unit.C
 )