BAEL-6212: rich domain model support

patterns-modules/clean-architecture/src/test/java/com/baeldung/pattern/richdomainmodel/RichDomainModelUnitTest.java

@@ -0,0 +1,33 @@
+package com.baeldung.pattern.richdomainmodel;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import org.junit.jupiter.api.Test;
+
+public class RichDomainModelUnitTest {
+
+    @Test
+    public void givenATennisGame_whenReceiverWinsThreePoints_thenScoreIsFortyLove() {
+        TennisGame game = new TennisGame("server", "receiver");
+
+        game.wonPoint("server");
+        game.wonPoint("server");
+        game.wonPoint("server");
+
+        assertThat(game.getScore())
+            .isEqualTo("Forty-Love");
+    }
+
+    @Test
+    public void givenATennisGame_whenEachPlayerWonTwoPoints_thenScoreIsThirtyAll() {
+        TennisGame game = new TennisGame("server", "receiver");
+
+        game.wonPoint("server");
+        game.wonPoint("server");
+        game.wonPoint("receiver");
+        game.wonPoint("receiver");
+
+        assertThat(game.getScore())
+            .isEqualTo("Thirty-All");
+    }
+}