Added match method and unit tests

pom.xml

@@ -13,5 +13,13 @@
         <maven.compiler.target>22</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>RELEASE</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 
 </project>

src/main/java/com/ceticamarco/Left.java

@@ -1,18 +0,0 @@
-package com.ceticamarco;
-
-import java.util.function.Function;
-
-/**
- * <p>
- *
- * </p>
- * @param value
- * @param <L>
- * @param <R>
- */
-public record Left<L, R>(L value) implements Either<L, R> {
-    @Override
-    public <T> T match(Function<L, T> onLeft, Function<R, T> onRight) {
-        return onLeft.apply(this.value);
-    }
-}

src/main/java/com/ceticamarco/Right.java

@@ -1,10 +0,0 @@
-package com.ceticamarco;
-
-import java.util.function.Function;
-
-public record Right<L, R>(R value) implements Either<L, R> {
-    @Override
-    public <T> T match(Function<L, T> onLeft, Function<R, T> onRight) {
-        return onRight.apply(this.value);
-    }
-}

src/main/java/com/ceticamarco/lambdatonic/Either.java

@@ -1,4 +1,4 @@
-package com.ceticamarco;
+package com.ceticamarco.lambdatonic;
 
 import java.util.function.Function;
 

src/main/java/com/ceticamarco/lambdatonic/Left.java

@@ -0,0 +1,19 @@
+package com.ceticamarco.lambdatonic;
+
+import java.util.function.Function;
+
+/**
+ * <p>
+ *      Subtype of the <i>Either</i> protocol.
+ *      This class sets the left value of the Either type
+ * </p>
+ * @param value The left value of the <i>Either</i> type
+ * @param <L> The left type, representing the error value
+ * @param <R> The right type, representing the actual value
+ */
+public record Left<L, R>(L value) implements Either<L, R> {
+    @Override
+    public <T> T match(Function<L, T> onLeft, Function<R, T> onRight) {
+        return onLeft.apply(this.value);
+    }
+}

src/main/java/com/ceticamarco/lambdatonic/Right.java

@@ -0,0 +1,19 @@
+package com.ceticamarco.lambdatonic;
+
+import java.util.function.Function;
+
+/**
+ * <p>
+ *     Subtype of the <i>Either</i> protocol.
+ *     This class sets the right value of the either type
+ * </p>
+ * @param value The right value of the <i>Either</i> type
+ * @param <L> The left type, representing the error value
+ * @param <R> The right type, representing the actual value
+ */
+public record Right<L, R>(R value) implements Either<L, R> {
+    @Override
+    public <T> T match(Function<L, T> onLeft, Function<R, T> onRight) {
+        return onRight.apply(this.value);
+    }
+}

src/test/java/com/ceticamarco/lambdatonic/LeftTests.java

@@ -0,0 +1,21 @@
+package com.ceticamarco.lambdatonic;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+public class LeftTests {
+    @Test
+    public void testMatchLeft() {
+        Either<Integer, String> resEither = new Left<>(19);
+
+        var actual = resEither.match(
+            errorCode  -> "Error code: " + errorCode.toString(),
+            successMsg -> successMsg
+        );
+
+        var expected = "Error code: 19";
+
+        assertEquals(expected, actual);
+    }
+}

src/test/java/com/ceticamarco/lambdatonic/RightTests.java

@@ -0,0 +1,21 @@
+package com.ceticamarco.lambdatonic;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+public class RightTests {
+    @Test
+    public void testMatchRight() {
+        Either<Integer, String> resEither = new Right<>("Query executed successfully");
+
+        var actual = resEither.match(
+                errorCode  -> "Error code: " + errorCode.toString(),
+                successMsg -> successMsg
+        );
+
+        var expected = "Query executed successfully";
+
+        assertEquals(expected, actual);
+    }
+}