add unit tests for Player and improved tests for Exchange and Portfolio

src/test/java/edu/ntnu/idi/idatt2003/gruppe42/ExchangeTest.java

@@ -11,11 +11,10 @@
 import org.junit.jupiter.api.Test;
 
 public class ExchangeTest {
-
   private Exchange exchange;
 
   @BeforeEach
-  public void setUp() {
+  void setUp() {
     Stock stock = new Stock("AAPL", "Apple Inc.", new BigDecimal("100"));
     exchange = new Exchange("NYSE", List.of(stock));
   }

src/test/java/edu/ntnu/idi/idatt2003/gruppe42/PlayerTest.java

@@ -0,0 +1,29 @@
+package edu.ntnu.idi.idatt2003.gruppe42;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import edu.ntnu.idi.idatt2003.gruppe42.Model.Player;
+import java.math.BigDecimal;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+public class PlayerTest {
+  private Player player;
+
+  @BeforeEach
+  void setUp() {
+    player = new Player("John Doe", new BigDecimal("10000"));
+  }
+
+  @Test
+  void addMoneyTest() {
+    player.addMoney(new BigDecimal("5000"));
+    assertEquals(new BigDecimal("15000"), player.getMoney());
+  }
+
+  @Test
+  void withdrawMoneyTest() {
+    player.withdrawMoney(new BigDecimal("5000"));
+    assertEquals(new BigDecimal("5000"), player.getMoney());
+  }
+}

src/test/java/edu/ntnu/idi/idatt2003/gruppe42/PortfolioTest.java

@@ -1,33 +1,35 @@
 package edu.ntnu.idi.idatt2003.gruppe42;
 
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
 import edu.ntnu.idi.idatt2003.gruppe42.Model.Portfolio;
 import edu.ntnu.idi.idatt2003.gruppe42.Model.Share;
 import edu.ntnu.idi.idatt2003.gruppe42.Model.Stock;
-import org.junit.jupiter.api.Test;
-
 import java.math.BigDecimal;
-
-import static org.junit.jupiter.api.Assertions.assertFalse;
-import static org.junit.jupiter.api.Assertions.assertTrue;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 public class PortfolioTest {
+  private Portfolio portfolio;
+  private Stock stock;
+  private Share share;
+
+  @BeforeEach
+  void setUp() {
+    portfolio = new Portfolio();
+    stock = new Stock("AAPL", "Apple Inc.", new BigDecimal("10000"));
+    share = new Share(stock, new BigDecimal("10"), new BigDecimal("15000"));
+  }
 
   @Test
-  public void addShareTest() {
-    Portfolio portfolio = new Portfolio();
-    Stock stock = new Stock("AAPL", "Apple", new BigDecimal("10000"));
-    Share share = new Share(stock, new BigDecimal("10"), new BigDecimal("15000"));
-
+  void addShareTest() {
     boolean result = portfolio.addShare(share);
     assertTrue(portfolio.contains(share));
   }
 
   @Test
-  public void removeShareTest() {
-    Portfolio portfolio = new Portfolio();
-    Stock stock = new Stock("AAPL", "Apple", new BigDecimal("10000"));
-    Share share = new Share(stock, new BigDecimal("10"), new BigDecimal("15000"));
-
+  void removeShareTest() {
     portfolio.addShare(share);
     boolean result = portfolio.removeShare(share);
     assertFalse(portfolio.contains(share));