Feat: Added unit testing for Purchase class

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

@@ -1,3 +1,36 @@
-public class PurchaseTest {
-
+package edu.ntnu.idi.idatt2003.g40.mappe;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import java.math.BigDecimal;
+import org.junit.jupiter.api.Test;
+
+/**
+ * Test class for {@link Purchase}.
+ * */
+class PurchaseTest {
+
+  Stock testStock = new Stock("AAPL", "Apple Inc.", new BigDecimal("100.00"));
+  Share testShare = new Share(testStock, new BigDecimal("10"), new BigDecimal("10"));
+  PurchaseCalculator testPurchaseCalculator = new PurchaseCalculator(testShare);
+  Player testPlayer = new Player("TestName", new BigDecimal("1000.00"));
+
+  @Test
+  void constructor_sets_values() {
+    Purchase purchase = new Purchase(testShare, 1, testPurchaseCalculator);
+
+    assertEquals(testShare, purchase.getShare());
+    assertEquals(1, purchase.getWeek());
+    assertEquals(testPurchaseCalculator, purchase.getCalculator());
+  }
+
+  @Test
+  void commit_method_sets_commit_to_true() {
+    Purchase purchase = new Purchase(testShare, 1, testPurchaseCalculator);
+
+    purchase.commit(testPlayer);
+
+    assertTrue(purchase.isCommited());
+  }
 }