init

spring-boot-testing/src/main/java/com/baeldung/boot/configurationproperties/Connection.java

@@ -0,0 +1,23 @@
+package com.baeldung.boot.configurationproperties;
+
+public class Connection {
+
+	private String authorization;
+	private int timeout;
+	
+	public String getAuthorization() {
+		return authorization;
+	}
+	
+	public void setAuthorization(String authorization) {
+		this.authorization = authorization;
+	}
+	
+	public int getTimeout() {
+		return timeout;
+	}
+	
+	public void setTimeout(int timeout) {
+		this.timeout = timeout;
+	}
+}

spring-boot-testing/src/main/java/com/baeldung/boot/configurationproperties/ConnectionFactory.java

@@ -0,0 +1,21 @@
+package com.baeldung.boot.configurationproperties;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class ConnectionFactory {
+
+	@Bean
+	@ConfigurationProperties(prefix = "testing")
+	public Connection getTestingConnection() {
+		return new Connection();
+	}
+	
+	@Bean
+	@ConfigurationProperties(prefix = "live")
+	public Connection getLiveConnection() {
+		return new Connection();
+	}
+}

spring-boot-testing/src/main/java/com/baeldung/boot/configurationproperties/Credentials.java

@@ -0,0 +1,30 @@
+package com.baeldung.boot.configurationproperties;
+
+public class Credentials {
+
+	private String username;
+	private String password;
+	
+	public Credentials() {System.out.println("### INIT2 ###");}
+
+	public Credentials(String username, String password) {
+		this.username = username;
+		this.password = password;
+	}
+
+	public String getUsername() {
+		return username;
+	}
+
+	public void setUsername(String username) {
+		this.username = username;
+	}
+
+	public String getPassword() {
+		return password;
+	}
+
+	public void setPassword(String password) {
+		this.password = password;
+	}
+}

spring-boot-testing/src/main/java/com/baeldung/boot/configurationproperties/CustomCredentialsConverter.java

@@ -0,0 +1,16 @@
+package com.baeldung.boot.configurationproperties;
+
+import org.springframework.boot.context.properties.ConfigurationPropertiesBinding;
+import org.springframework.core.convert.converter.Converter;
+import org.springframework.stereotype.Component;
+
+@Component
+@ConfigurationPropertiesBinding
+public class CustomCredentialsConverter implements Converter<String, Credentials> {
+	
+	@Override
+	public Credentials convert(String source) {
+		String data[] = source.split(",");
+		return new Credentials(data[0], data[1]);
+	}
+}

spring-boot-testing/src/main/java/com/baeldung/boot/configurationproperties/MailServer.java

@@ -0,0 +1,59 @@
+package com.baeldung.boot.configurationproperties;
+
+import java.util.Map;
+
+import javax.validation.Valid;
+import javax.validation.constraints.Email;
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.NotEmpty;
+import javax.validation.constraints.NotNull;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.PropertySource;
+import org.springframework.validation.annotation.Validated;
+
+@Configuration
+@ConfigurationProperties(prefix = "validate")
+@PropertySource("classpath:property-validation.properties")
+@Validated
+public class MailServer {
+
+	@NotNull
+	@NotEmpty
+	private Map<String, @NotBlank String> propertiesMap;
+
+	@Valid
+	private MailConfig mailConfig = new MailConfig();
+
+	public static class MailConfig {
+
+		@NotBlank
+		@Email
+		private String address;
+
+		public String getAddress() {
+			return address;
+		}
+
+		public void setAddress(String address) {
+			this.address = address;
+		}
+	}
+
+	public Map<String, String> getPropertiesMap() {
+		return propertiesMap;
+	}
+
+	public void setPropertiesMap(Map<String, String> propertiesMap) {
+		this.propertiesMap = propertiesMap;
+	}
+
+	public MailConfig getMailConfig() {
+		return mailConfig;
+	}
+
+	public void setMailConfig(MailConfig mailConfig) {
+		this.mailConfig = mailConfig;
+	}
+}

spring-boot-testing/src/main/java/com/baeldung/boot/configurationproperties/PropertyConversion.java

@@ -0,0 +1,67 @@
+package com.baeldung.boot.configurationproperties;
+
+import java.time.Duration;
+import java.time.temporal.ChronoUnit;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.boot.convert.DataSizeUnit;
+import org.springframework.boot.convert.DurationUnit;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.util.unit.DataSize;
+import org.springframework.util.unit.DataUnit;
+
+@Configuration
+@ConfigurationProperties(prefix = "server")
+public class PropertyConversion {
+
+	private DataSize uploadSpeed;
+
+	@DataSizeUnit(DataUnit.GIGABYTES)
+	private DataSize downloadSpeed;
+		
+	private Duration backupDay;
+	
+	@DurationUnit(ChronoUnit.HOURS)
+	private Duration backupHour;
+	
+	private Credentials credentials;
+	
+	public Duration getBackupDay() {
+		return backupDay;
+	}
+
+	public void setBackupDay(Duration backupDay) {
+		this.backupDay = backupDay;
+	}
+
+	public Duration getBackupHour() {
+		return backupHour;
+	}
+
+	public void setBackupHour(Duration backupHour) {
+		this.backupHour = backupHour;
+	}
+
+	public DataSize getUploadSpeed() {
+		return uploadSpeed;
+	}
+
+	public void setUploadSpeed(DataSize uploadSpeed) {
+		this.uploadSpeed = uploadSpeed;
+	}
+
+	public DataSize getDownloadSpeed() {
+		return downloadSpeed;
+	}
+
+	public void setDownloadSpeed(DataSize downloadSpeed) {
+		this.downloadSpeed = downloadSpeed;
+	}
+
+	public Credentials getCredentials() {
+		return credentials;
+	}
+	
+	public void setCredentials(Credentials credentials) {
+		this.credentials = credentials;
+	}
+}

spring-boot-testing/src/main/java/com/baeldung/boot/configurationproperties/ServerConfig.java

@@ -0,0 +1,70 @@
+package com.baeldung.boot.configurationproperties;
+
+import java.util.Map;
+import java.util.Set;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@ConfigurationProperties(prefix = "server")
+public class ServerConfig {
+
+	private String name;
+	private Address address;
+	private Map<String, String> dirs;
+	private Set<String> imgIds;
+	
+	public static class Address {
+		
+		private String ip;
+		private int port;
+		
+		public String getIp() {
+			return ip;
+		}
+		
+		public void setIp(String ip) {
+			this.ip = ip;
+		}
+		
+		public int getPort() {
+			return port;
+		}
+		
+		public void setPort(int port) {
+			this.port = port;
+		}
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public Address getAddress() {
+		return address;
+	}
+
+	public void setAddress(Address address) {
+		this.address = address;
+	}
+
+	public Set<String> getImgIds() {
+		return imgIds;
+	}
+	
+	public void setImgIds(Set<String> imgIds) {
+		this.imgIds = imgIds;
+	}
+
+	public Map<String, String> getDirs() {
+		return dirs;
+	}
+
+	public void setDirs(Map<String, String> dirs) {
+		this.dirs = dirs;
+	}
+}

spring-boot-testing/src/main/resources/property-validation.properties

@@ -0,0 +1,4 @@
+validate.propertiesMap.first=prop1
+validate.propertiesMap.second=prop2
+
+validate.mail_config.address=user1@test

spring-boot-testing/src/test/java/com/baeldung/boot/configurationproperties/BindingPropertiesToThirdpartyPOJOUnitTest.java

@@ -0,0 +1,25 @@
+package com.baeldung.boot.configurationproperties;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.TestPropertySource;
+
+@SpringBootTest
+@TestPropertySource("classpath:thirdparty-config-test.properties")
+public class BindingPropertiesToThirdpartyPOJOUnitTest {
+
+	@Autowired
+	private ConnectionFactory connectionfactory;
+
+	@Test
+	void givenThirdPartyPOJO_whenBindingPropertiesFile_thenAllFieldsAreSet() {
+		
+		assertEquals("foo", connectionfactory.getTestingConnection().getAuthorization());
+		assertEquals(50, connectionfactory.getTestingConnection().getTimeout());
+		
+		assertEquals("bar", connectionfactory.getLiveConnection().getAuthorization());
+		assertEquals(100, connectionfactory.getLiveConnection().getTimeout());
+	}
+}

spring-boot-testing/src/test/java/com/baeldung/boot/configurationproperties/BindingPropertiesToUserDefinedPOJOUnitTest.java

@@ -0,0 +1,32 @@
+package com.baeldung.boot.configurationproperties;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import java.util.Map;
+import java.util.Set;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.TestPropertySource;
+
+@SpringBootTest
+@TestPropertySource("classpath:server-config-test.properties")
+public class BindingPropertiesToUserDefinedPOJOUnitTest {
+
+	@Autowired
+	private ServerConfig serverConfig;
+
+	@Test
+	void givenUserDefinedPOJO_whenBindingPropertiesFile_thenAllFieldsAreSet() {
+
+		assertEquals("node1", serverConfig.getName());
+
+		assertEquals(Set.of("img1.jpg", "img2.jpg"),
+				serverConfig.getImgIds());
+
+		assertEquals("192.168.0.1", serverConfig.getAddress().getIp());
+		assertEquals(8099, serverConfig.getAddress().getPort());
+
+		assertEquals(Map.of("imgs", "/root/imgs", "html", "/root/html"), 
+				serverConfig.getDirs());
+	}
+}

spring-boot-testing/src/test/java/com/baeldung/boot/configurationproperties/BindingYMLPropertiesUnitTest.java

@@ -0,0 +1,30 @@
+package com.baeldung.boot.configurationproperties;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import java.util.Map;
+import java.util.Set;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+public class BindingYMLPropertiesUnitTest {
+	
+	@Autowired
+	private ServerConfig serverConfig;
+	
+	@Test
+	void whenBindingYMLConfigFile_thenAllFieldsAreSet() {
+		
+		assertEquals("node2", serverConfig.getName());
+
+		assertEquals(Set.of("img1.png", "img2.png"),
+				serverConfig.getImgIds());
+
+		assertEquals("192.168.0.2", serverConfig.getAddress().getIp());
+		assertEquals(5000, serverConfig.getAddress().getPort());
+
+		assertEquals(Map.of("imgs", "/etc/imgs", "html", "/etc/html"), 
+				serverConfig.getDirs());
+	}
+}

spring-boot-testing/src/test/java/com/baeldung/boot/configurationproperties/PropertyValidationUnitTest.java

@@ -0,0 +1,34 @@
+package com.baeldung.boot.configurationproperties;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import javax.validation.Validation;
+import javax.validation.Validator;
+
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.TestPropertySource;
+
+@SpringBootTest
+@TestPropertySource("classpath:property-validation-test.properties")
+public class PropertyValidationUnitTest {
+
+	@Autowired
+	private MailServer mailServer;
+
+	private static Validator propertyValidator;
+
+	@BeforeAll
+	public static void setup() {
+		propertyValidator = Validation.buildDefaultValidatorFactory().getValidator();
+	}
+
+	@Test
+	void whenBindingPropertiesToValidatedBeans_thenConstrainsAreChecked() {
+		
+		assertEquals(0, propertyValidator.validate(mailServer.getPropertiesMap()).size());
+		assertEquals(0, propertyValidator.validate(mailServer.getMailConfig()).size());
+	}
+}

spring-boot-testing/src/test/java/com/baeldung/boot/configurationproperties/SpringPropertiesConversionUnitTest.java

@@ -0,0 +1,38 @@
+package com.baeldung.boot.configurationproperties;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import java.time.Duration;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.TestPropertySource;
+import org.springframework.util.unit.DataSize;
+
+@SpringBootTest
+@TestPropertySource("classpath:spring-conversion-test.properties")
+public class SpringPropertiesConversionUnitTest {
+
+	@Autowired
+	private PropertyConversion propertyConversion;
+
+	@Test
+	void whenUsingSpringDefaultSizeConversion_thenDataSizeObjectIsSet() {
+		
+		assertEquals(DataSize.ofMegabytes(500), propertyConversion.getUploadSpeed());
+		assertEquals(DataSize.ofGigabytes(10), propertyConversion.getDownloadSpeed());
+	}
+
+	@Test
+	void whenUsingSpringDefaultDurationConversion_thenDurationObjectIsSet() {
+		
+		assertEquals(Duration.ofDays(1), propertyConversion.getBackupDay());
+		assertEquals(Duration.ofHours(8), propertyConversion.getBackupHour());
+	}
+	
+	@Test
+	void whenRegisteringCustomCredentialsConverter_thenCredentialsAreParsed() {
+		
+		assertEquals("user", propertyConversion.getCredentials().getUsername());
+		assertEquals("123", propertyConversion.getCredentials().getPassword());
+	}
+}

spring-boot-testing/src/test/resources/application.yml

@@ -0,0 +1,11 @@
+server:
+  name: node2
+  address:
+    ip: 192.168.0.2
+    port: 5000
+  dirs:
+    imgs: /etc/imgs
+    html: /etc/html
+  imgIds:
+  - img1.png
+  - img2.png

spring-boot-testing/src/test/resources/property-validation-test.properties

@@ -0,0 +1,4 @@
+validate.propertiesMap.first=prop1
+validate.propertiesMap.second=
+
+validate.mail_config.address=user1.test

spring-boot-testing/src/test/resources/server-config-test.properties

@@ -0,0 +1,11 @@
+server.NAME=node1
+
+server.address.ip=192.168.0.1
+server.address.port=8099
+
+# directories
+server.dirs.imgs=/root/imgs
+server.dirs.html=/root/html
+
+server.img_ids[0]=img1.jpg
+server.img_ids[1]=img2.jpg

spring-boot-testing/src/test/resources/spring-conversion-test.properties

@@ -0,0 +1,10 @@
+# bandwidth
+server.upload_speed=500MB
+server.download_speed=10
+
+# backup date
+server.backup_day=1d
+server.backup_hour=8
+
+# custom converter
+server.credentials=user,123

spring-boot-testing/src/test/resources/thirdparty-config-test.properties

@@ -0,0 +1,7 @@
+# testing
+testing.authorization=foo
+testing.timeout=50
+
+# live
+live.authorization=bar
+live.timeout=100