add schema validator

use ConfigurationProperties instead of Value for configuration

src/test/kotlin/com/example/demo/BaseUnitTest.kt

@@ -1,9 +1,33 @@
 package com.example.demo
 
+import com.example.demo.config.KafkaProperties
 import com.example.demo.services.kafka.Consumer
+import org.springframework.boot.test.context.TestConfiguration
 import org.springframework.boot.test.mock.mockito.MockBean
+import org.springframework.context.annotation.Bean
 
 open class BaseUnitTest {
     @MockBean
     lateinit var consumer: Consumer
+
+    @TestConfiguration
+    class TestConfig {
+        @Bean
+        fun kafkaProperties(): KafkaProperties = KafkaProperties(
+            bootstrapServers = "localhost:1111",
+            producer = KafkaProperties.Producer(
+                product = KafkaProperties.Producer.Product(
+                    defaultSyncTopic = "some-default",
+                ),
+            ),
+            consumer = KafkaProperties.Consumer(
+                groupId = "group",
+                topics = "topic",
+                autoStartup = false,
+            ),
+            validation = KafkaProperties.Validation(
+                schema = mapOf("product-sync" to "foo"),
+            ),
+        )
+    }
 }