unit test Player class

src/main/java/edu/ntnu/idi/idatt2003/g40/mappe/Player.java

@@ -1,7 +1,6 @@
 package edu.ntnu.idi.idatt2003.g40.mappe;
 
 import java.math.BigDecimal;
-import java.util.Objects;
 
 public class Player {
 

src/test/java/edu/ntnu/idi/idatt2003/g40/mappe/PlayerTest.java

@@ -1,3 +1,48 @@
-public class PlayerTest {
-
-}
+package edu.ntnu.idi.idatt2003.g40.mappe;
+
+import org.junit.jupiter.api.Test;
+
+import java.math.BigDecimal;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class PlayerTest {
+
+    @Test
+    void constructorSetsNameMoneyPortfolioAndArchive() {
+        Player player = new Player("Alice", new BigDecimal("1000"));
+
+        assertEquals("Alice", player.getName());
+        assertEquals(new BigDecimal("1000"), player.getMoney());
+        assertNotNull(player.getPortfolio());
+        assertNotNull(player.getTransactionArchive());
+    }
+
+    @Test
+    void addMoneyIncreasesBalance() {
+        Player player = new Player("Bob", new BigDecimal("500"));
+
+        player.addMoney(new BigDecimal("200"));
+
+        assertEquals(new BigDecimal("700"), player.getMoney());
+    }
+
+    @Test
+    void withdrawMoneyDecreasesBalance() {
+        Player player = new Player("Charlie", new BigDecimal("500"));
+
+        player.withdrawMoney(new BigDecimal("150"));
+
+        assertEquals(new BigDecimal("350"), player.getMoney());
+    }
+
+    @Test
+    void addAndWithdrawMoneyUpdateBalanceCorrectly() {
+        Player player = new Player("Dana", new BigDecimal("1000"));
+
+        player.addMoney(new BigDecimal("250"));
+        player.withdrawMoney(new BigDecimal("300"));
+
+        assertEquals(new BigDecimal("950"), player.getMoney());
+    }
+}