Added simple test for multidocument properties file

spring-boot-modules/spring-boot-properties/src/test/java/com/baeldung/properties/multidocument/MultidocumentPropertiesFileIntegrationTest.java

@@ -0,0 +1,25 @@
+package com.baeldung.properties.multidocument;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import org.junit.jupiter.api.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.ActiveProfiles;
+
+@ActiveProfiles("default")
+@SpringBootTest(classes = { MultidocumentTestConfig.class })
+public class MultidocumentPropertiesFileIntegrationTest {
+
+    Logger logger = LoggerFactory.getLogger(MultidocumentPropertiesFileIntegrationTest.class);
+
+    @Value("${baeldung.customProperty}")
+    private String customProperty;
+
+    @Test
+    public void givenMultidocumentPropertiesFileWhenBootContextLoadedThenDocumentProcessedCorrectly() {
+        assertThat(customProperty).isEqualTo("valueDefault");
+    }
+}

spring-boot-modules/spring-boot-properties/src/test/java/com/baeldung/properties/multidocument/MultidocumentPropertiesFileWithDevProfileIntegrationTest.java

@@ -0,0 +1,25 @@
+package com.baeldung.properties.multidocument;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import org.junit.jupiter.api.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.ActiveProfiles;
+
+@ActiveProfiles("test")
+@SpringBootTest(classes = { MultidocumentTestConfig.class })
+public class MultidocumentPropertiesFileWithDevProfileIntegrationTest {
+
+    Logger logger = LoggerFactory.getLogger(MultidocumentPropertiesFileWithDevProfileIntegrationTest.class);
+
+    @Value("${baeldung.customProperty}")
+    private String customProperty;
+
+    @Test
+    public void givenMultidocumentPropertiesFileWhenBootContextLoadedThenDocumentProcessedCorrectly() {
+        assertThat(customProperty).isEqualTo("valueTest");
+    }
+}

spring-boot-modules/spring-boot-properties/src/test/java/com/baeldung/properties/multidocument/MultidocumentPropertiesFileWithTestProfileIntegrationTest.java

@@ -0,0 +1,25 @@
+package com.baeldung.properties.multidocument;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import org.junit.jupiter.api.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.ActiveProfiles;
+
+@ActiveProfiles("dev")
+@SpringBootTest(classes = { MultidocumentTestConfig.class })
+public class MultidocumentPropertiesFileWithTestProfileIntegrationTest {
+
+    Logger logger = LoggerFactory.getLogger(MultidocumentPropertiesFileWithTestProfileIntegrationTest.class);
+
+    @Value("${baeldung.customProperty}")
+    private String customProperty;
+
+    @Test
+    public void givenMultidocumentPropertiesFileWhenBootContextLoadedThenDocumentProcessedCorrectly() {
+        assertThat(customProperty).isEqualTo("valueDev");
+    }
+}

spring-boot-modules/spring-boot-properties/src/test/java/com/baeldung/properties/multidocument/MultidocumentTestConfig.java

@@ -0,0 +1,10 @@
+package com.baeldung.properties.multidocument;
+
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@ComponentScan("com.baeldung.properties.multidocument")
+public class MultidocumentTestConfig {
+
+}

spring-boot-modules/spring-boot-properties/src/test/resources/application.properties

@@ -2,4 +2,14 @@ management.endpoints.web.exposure.include=refresh
 spring.properties.refreshDelay=1000
 spring.config.location=file:extra.properties
 spring.main.allow-bean-definition-overriding=true
+baeldung.customProperty=valueDefault
+#---
+spring.config.activate.on-profile=dev
+baeldung.customProperty=valueDev
+#---
+spring.config.activate.on-profile=test
+baeldung.customProperty=valueTest
+#---
+spring.config.activate.on-profile=prod
+baeldung.customProperty=valueProd