add unit tests

langchain4j-spring-boot-starter/src/test/java/dev/langchain4j/service/spring/mode/automatic/differentPackage/package1/DifferentPackageAiServiceApplication.java → langchain4j-spring-boot-starter/src/test/java/dev/langchain4j/service/spring/mode/automatic/scanBasePackages/package1/ScanBasePackagesAiServiceApplication.java

@@ -1,12 +1,12 @@
-package dev.langchain4j.service.spring.mode.automatic.differentPackage.package1;
+package dev.langchain4j.service.spring.mode.automatic.scanBasePackages.package1;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
 @SpringBootApplication
-public class DifferentPackageAiServiceApplication {
+public class ScanBasePackagesAiServiceApplication {
 
     public static void main(String[] args) {
-        SpringApplication.run(DifferentPackageAiServiceApplication.class, args);
+        SpringApplication.run(ScanBasePackagesAiServiceApplication.class, args);
     }
 }

langchain4j-spring-boot-starter/src/test/java/dev/langchain4j/service/spring/mode/automatic/differentPackage/package1/DifferentPackageAiServiceIT.java → langchain4j-spring-boot-starter/src/test/java/dev/langchain4j/service/spring/mode/automatic/scanBasePackages/package1/ScanBasePackagesAiServiceIT.java

@@ -1,7 +1,7 @@
-package dev.langchain4j.service.spring.mode.automatic.differentPackage.package1;
+package dev.langchain4j.service.spring.mode.automatic.scanBasePackages.package1;
 
 import dev.langchain4j.service.spring.AiServicesAutoConfig;
-import dev.langchain4j.service.spring.mode.automatic.differentPackage.package2.DifferentPackageAiService;
+import dev.langchain4j.service.spring.mode.automatic.scanBasePackages.package2.DifferentPackageAiService;
 import org.junit.jupiter.api.Test;
 import org.springframework.boot.autoconfigure.AutoConfigurations;
 import org.springframework.boot.test.context.runner.ApplicationContextRunner;
@@ -10,23 +10,27 @@
 import static dev.langchain4j.service.spring.mode.ApiKeys.OPENAI_API_KEY;
 import static org.assertj.core.api.Assertions.assertThat;
 
-class DifferentPackageAiServiceIT {
+class ScanBasePackagesAiServiceIT {
 
     ApplicationContextRunner contextRunner = new ApplicationContextRunner()
             .withConfiguration(AutoConfigurations.of(AiServicesAutoConfig.class));
 
-    @ComponentScan(value = "dev.langchain4j.service.spring.mode.automatic.differentPackage.package2")
+    @ComponentScan(value = "dev.langchain4j.service.spring.mode.automatic.scanBasePackages.package2")
     static class ComponentScanWithValue {
     }
 
-    @ComponentScan(basePackages = "dev.langchain4j.service.spring.mode.automatic.differentPackage.package2")
+    @ComponentScan(basePackages = "dev.langchain4j.service.spring.mode.automatic.scanBasePackages.package2")
     static class ComponentScanWithBasePackages {
     }
 
-    @ComponentScan(basePackageClasses = dev.langchain4j.service.spring.mode.automatic.differentPackage.package2.DifferentPackageAiService.class)
+    @ComponentScan(basePackageClasses = dev.langchain4j.service.spring.mode.automatic.scanBasePackages.package2.DifferentPackageAiService.class)
     static class ComponentScanWithBasePackageClasses {
     }
 
+    @ComponentScan(basePackages = "${test.basePackages}")
+    static class ComponentScanWithPlaceholder {
+    }
+
     @Test
     void should_create_AI_service_that_use_componentScan_value() {
 
@@ -36,7 +40,7 @@ void should_create_AI_service_that_use_componentScan_value() {
                         "langchain4j.open-ai.chat-model.max-tokens=20",
                         "langchain4j.open-ai.chat-model.temperature=0.0"
                 )
-                .withUserConfiguration(DifferentPackageAiServiceApplication.class)
+                .withUserConfiguration(ScanBasePackagesAiServiceApplication.class)
                 .withUserConfiguration(ComponentScanWithValue.class)
                 .run(context -> {
 
@@ -60,7 +64,7 @@ void should_create_AI_service_that_use_componentScan_basePackages() {
                         "langchain4j.open-ai.chat-model.max-tokens=20",
                         "langchain4j.open-ai.chat-model.temperature=0.0"
                 )
-                .withUserConfiguration(DifferentPackageAiServiceApplication.class)
+                .withUserConfiguration(ScanBasePackagesAiServiceApplication.class)
                 .withUserConfiguration(ComponentScanWithBasePackages.class)
                 .run(context -> {
 
@@ -84,7 +88,7 @@ void should_create_AI_service_that_use_componentScan_basePackageClasses() {
                         "langchain4j.open-ai.chat-model.max-tokens=20",
                         "langchain4j.open-ai.chat-model.temperature=0.0"
                 )
-                .withUserConfiguration(DifferentPackageAiServiceApplication.class)
+                .withUserConfiguration(ScanBasePackagesAiServiceApplication.class)
                 .withUserConfiguration(ComponentScanWithBasePackageClasses.class)
                 .run(context -> {
 
@@ -98,4 +102,29 @@ void should_create_AI_service_that_use_componentScan_basePackageClasses() {
                     assertThat(answer).containsIgnoringCase("Berlin");
                 });
     }
+
+    @Test
+    void should_create_AI_service_that_use_componentScan_with_placeholder() {
+
+        contextRunner
+                .withPropertyValues(
+                        "langchain4j.open-ai.chat-model.api-key=" + OPENAI_API_KEY,
+                        "langchain4j.open-ai.chat-model.max-tokens=20",
+                        "langchain4j.open-ai.chat-model.temperature=0.0",
+                        "test.basePackages=dev.langchain4j.service.spring.mode.automatic.scanBasePackages.package2"
+                )
+                .withUserConfiguration(ScanBasePackagesAiServiceApplication.class)
+                .withUserConfiguration(ComponentScanWithPlaceholder.class)
+                .run(context -> {
+
+                    // given
+                    DifferentPackageAiService aiService = context.getBean(DifferentPackageAiService.class);
+
+                    // when
+                    String answer = aiService.chat("What is the capital of Germany?");
+
+                    // then
+                    assertThat(answer).containsIgnoringCase("Berlin");
+                });
+    }
 }

langchain4j-spring-boot-starter/src/test/java/dev/langchain4j/service/spring/mode/automatic/differentPackage/package2/DifferentPackageAiService.java → langchain4j-spring-boot-starter/src/test/java/dev/langchain4j/service/spring/mode/automatic/scanBasePackages/package2/DifferentPackageAiService.java

@@ -1,4 +1,4 @@
-package dev.langchain4j.service.spring.mode.automatic.differentPackage.package2;
+package dev.langchain4j.service.spring.mode.automatic.scanBasePackages.package2;
 
 import dev.langchain4j.service.spring.AiService;