Bael 2075 (#5189)

* BAEL-2075: Lombok @Getter for boolean field

lombok/src/main/java/com/baeldung/lombok/getter/GetterBoolean.java

@@ -0,0 +1,15 @@
+package com.baeldung.lombok.getter;
+
+
+import lombok.Getter;
+
+/**
+ * Related Article Sections:
+ * 4. Using @Getter on a Boolean Field
+ *
+ */
+public class GetterBoolean {
+
+    @Getter
+    private Boolean running = true;
+}

lombok/src/main/java/com/baeldung/lombok/getter/GetterBooleanPrimitive.java

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+package com.baeldung.lombok.getter;
+
+
+import lombok.Getter;
+
+/**
+ * Related Article Sections:
+ * 3. Using @Getter on a boolean Field
+ *
+ */
+public class GetterBooleanPrimitive {
+
+    @Getter
+    private boolean running;
+
+}

lombok/src/main/java/com/baeldung/lombok/getter/GetterBooleanPrimitiveSameAccessor.java

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+package com.baeldung.lombok.getter;
+
+
+import lombok.Getter;
+
+/**
+ * Related Article Sections:
+ * 3.2. Two boolean Fields With the Same Accessor Name
+ *
+ */
+public class GetterBooleanPrimitiveSameAccessor {
+
+    @Getter
+    boolean running = true;
+
+    @Getter
+    boolean isRunning = false;
+}

lombok/src/main/java/com/baeldung/lombok/getter/GetterBooleanSameAccessor.java

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+package com.baeldung.lombok.getter;
+
+import lombok.Getter;
+
+/**
+ * Related Article Sections:
+ * 3.1. A boolean Field Having the Same Name With Its Accessor
+ *
+ */
+public class GetterBooleanSameAccessor {
+    @Getter
+    private boolean isRunning = true;
+}

lombok/src/main/java/com/baeldung/lombok/getter/GetterBooleanType.java

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+package com.baeldung.lombok.getter;
+
+
+import lombok.Getter;
+
+/**
+ * Related Article Sections:
+ * 4. Using @Getter on a Boolean Field
+ *
+ */
+public class GetterBooleanType {
+
+    @Getter
+    private Boolean running = true;
+}

lombok/src/test/java/com/baeldung/lombok/getter/GetterBooleanUnitTest.java

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+package com.baeldung.lombok.getter;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+
+public class GetterBooleanUnitTest {
+
+    @Test
+    public void whenBasicBooleanField_thenMethodNamePrefixedWithIsFollowedByFieldName() {
+        GetterBooleanPrimitive lombokExamples = new GetterBooleanPrimitive();
+        assertFalse(lombokExamples.isRunning());
+    }
+
+    @Test
+    public void whenBooleanFieldPrefixedWithIs_thenMethodNameIsSameAsFieldName() {
+        GetterBooleanSameAccessor lombokExamples = new GetterBooleanSameAccessor();
+        assertTrue(lombokExamples.isRunning());
+    }
+
+    @Test
+    public void whenTwoBooleanFieldsCauseNamingConflict_thenLombokMapsToFirstDeclaredField() {
+        GetterBooleanPrimitiveSameAccessor  lombokExamples = new GetterBooleanPrimitiveSameAccessor();
+        assertTrue(lombokExamples.isRunning() == lombokExamples.running);
+        assertFalse(lombokExamples.isRunning() == lombokExamples.isRunning);
+    }
+
+    @Test
+    public void whenFieldOfBooleanType_thenLombokPrefixesMethodWithGetInsteadOfIs() {
+        GetterBooleanType lombokExamples = new GetterBooleanType();
+        assertTrue(lombokExamples.getRunning());
+    }
+}