[improve-lombok-accessor] add final accessors (#13703)

* [improve-lombok-accessor] add final accessors

* [improve-lombok-accessor] rename test methods; remove the unused class

* [improve-lombok-accessor] formatting

lombok-modules/lombok-2/src/main/java/com/baeldung/lombok/accessors/model/BasicAccount.java

@@ -1,24 +0,0 @@
-package com.baeldung.lombok.accessors.model;
-
-import java.math.BigDecimal;
-
-public class BasicAccount {
-    private String name;
-    private BigDecimal balance;
-
-    public BigDecimal getBalance() {
-        return this.balance;
-    }
-
-    public void setBalance(BigDecimal newBalance) {
-        this.balance = newBalance;
-    }
-
-    public String getName() {
-        return this.name;
-    }
-
-    public void setName(String accountName) {
-        this.name = accountName;
-    }
-}

lombok-modules/lombok-2/src/main/java/com/baeldung/lombok/accessors/model/FinalAccount.java

@@ -0,0 +1,15 @@
+package com.baeldung.lombok.accessors.model;
+
+import lombok.Getter;
+import lombok.Setter;
+import lombok.experimental.Accessors;
+
+import java.math.BigDecimal;
+
+@Accessors(makeFinal = true)
+@Getter
+@Setter
+public class FinalAccount {
+    private String name;
+    private BigDecimal balance;
+}

lombok-modules/lombok-2/src/main/java/com/baeldung/lombok/accessors/model/FinalChainedFluentAccount.java

@@ -0,0 +1,15 @@
+package com.baeldung.lombok.accessors.model;
+
+import lombok.Getter;
+import lombok.Setter;
+import lombok.experimental.Accessors;
+
+import java.math.BigDecimal;
+
+@Accessors(makeFinal = true, fluent = true, chain = true)
+@Getter
+@Setter
+public class FinalChainedFluentAccount {
+    private String name;
+    private BigDecimal balance;
+}

lombok-modules/lombok-2/src/test/java/com/baeldung/lombok/accessors/AccessorsUnitTest.java

@@ -1,26 +1,36 @@
 package com.baeldung.lombok.accessors;
 
-import com.baeldung.lombok.accessors.model.*;
+import com.baeldung.lombok.accessors.model.ChainedAccount;
+import com.baeldung.lombok.accessors.model.ChainedFluentAccount;
+import com.baeldung.lombok.accessors.model.FinalAccount;
+import com.baeldung.lombok.accessors.model.FinalChainedFluentAccount;
+import com.baeldung.lombok.accessors.model.FluentAccount;
+import com.baeldung.lombok.accessors.model.PrefixedAccount;
+import com.baeldung.lombok.accessors.model.PrefixedFluentAccount;
+import com.baeldung.lombok.accessors.model.StandardAccount;
 import org.junit.Test;
 
+import java.lang.reflect.Modifier;
 import java.math.BigDecimal;
+import java.util.Arrays;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
 
 public class AccessorsUnitTest {
 
     @Test
-    public void givenBasicAccount_thenUseBasicAccessors() {
-        BasicAccount account = new BasicAccount();
-        account.setName("Basic Accessors");
+    public void whenStandardAccount_thenHaveStandardAccessors() {
+        StandardAccount account = new StandardAccount();
+        account.setName("Standard Accessors");
         account.setBalance(BigDecimal.TEN);
 
-        assertEquals("Basic Accessors", account.getName());
+        assertEquals("Standard Accessors", account.getName());
         assertEquals(BigDecimal.TEN, account.getBalance());
     }
 
     @Test
-    public void givenFluentAccount_thenUseFluentAccessors() {
+    public void whenFluentAccount_thenHaveFluentAccessors() {
         FluentAccount account = new FluentAccount();
         account.name("Fluent Account");
         account.balance(BigDecimal.TEN);
@@ -30,7 +40,7 @@ public class AccessorsUnitTest {
     }
 
     @Test
-    public void givenChainedAccount_thenUseChainedAccessors() {
+    public void whenChainedAccount_thenHaveChainedAccessors() {
         ChainedAccount account = new ChainedAccount();
         account.setName("Chained Account").setBalance(BigDecimal.TEN);
 
@@ -39,7 +49,7 @@ public class AccessorsUnitTest {
     }
 
     @Test
-    public void givenChainedFluentAccount_thenUseChainedFluentAccessors() {
+    public void whenChainedFluentAccount_thenHaveChainedFluentAccessors() {
         ChainedFluentAccount account = new ChainedFluentAccount()
           .name("Fluent Account")
           .balance(BigDecimal.TEN);
@@ -49,7 +59,7 @@ public class AccessorsUnitTest {
     }
 
     @Test
-    public void givenPrefixedAccount_thenRemovePrefixFromAccessors() {
+    public void whenPrefixedAccount_thenRemovePrefixFromAccessors() {
         PrefixedAccount account = new PrefixedAccount();
         account.setName("Prefixed Fields");
         account.setBalance(BigDecimal.TEN);
@@ -61,7 +71,7 @@ public class AccessorsUnitTest {
     }
 
     @Test
-    public void givenPrefixedFluentAccount_thenRemovePrefixFromAccessors() {
+    public void whenPrefixedFluentAccount_thenRemovePrefixFromAccessors() {
         PrefixedFluentAccount account = new PrefixedFluentAccount();
         account
           .name("Prefixed Fluent Fields")
@@ -71,4 +81,38 @@ public class AccessorsUnitTest {
         assertEquals(BigDecimal.TEN, account.balance());
     }
 
-}
+    @Test
+    public void whenFinalAccount_thenHaveFinalAccessors() {
+        FinalAccount account = new FinalAccount();
+        account.setName("Final Account");
+        account.setBalance(BigDecimal.TEN);
+
+        assertEquals("Final Account", account.getName());
+        assertEquals(BigDecimal.TEN, account.getBalance());
+
+        //verify if all getters and setters are final methods
+        boolean getterSettersAreFinal = Arrays.stream(FinalAccount.class.getMethods())
+          .filter(method -> method.getName().matches("^(get|set)(Name|Balance)$"))
+          .allMatch(method -> Modifier.isFinal(method.getModifiers()));
+        assertTrue(getterSettersAreFinal);
+
+    }
+
+    @Test
+    public void whenFinalChainedFluentAccount_thenHaveFinalAccessors() {
+        FinalChainedFluentAccount account = new FinalChainedFluentAccount();
+        account
+          .name("Final Chained Fluent Account")
+          .balance(BigDecimal.TEN);
+
+        assertEquals("Final Chained Fluent Account", account.name());
+        assertEquals(BigDecimal.TEN, account.balance());
+
+        //verify if all getters and setters are final methods
+        boolean getterSettersAreFinal = Arrays.stream(FinalAccount.class.getMethods())
+          .filter(method -> method.getName().matches("^(name|balance)$"))
+          .allMatch(method -> Modifier.isFinal(method.getModifiers()));
+        assertTrue(getterSettersAreFinal);
+    }
+
+}