springframeworkguru#21 - New Currency "Franc" - Basic Test Driven Development approach, Write test first, make it compile and then flesh it out

Author: patrickcorbett

src/main/java/guru/springframework/Franc.java

@@ -0,0 +1,24 @@
+package guru.springframework;
+
+/**
+ * @author Patrick Corbett
+ */
+public class Franc {
+
+    private int amount;
+
+    public Franc(int pAmount) {
+        amount = pAmount;
+    }
+
+    Franc times(int pMultiplier) {
+        return new Franc(amount * pMultiplier);
+    }
+
+    public boolean equals(Object object) {
+        // Manual equals, left like this as equals with null or other class will be done later
+        Franc franc = (Franc) object;
+        return amount == franc.amount;
+    }
+
+}

src/test/java/guru/springframework/MoneyTest.java

@@ -3,6 +3,9 @@
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+
 /**
  * @author Patrick Corbett
  */
@@ -12,15 +15,30 @@ class MoneyTest {
     void testMultiplication() {
         Dollar five = new Dollar(5);
         Dollar product = five.times(2);
-        Assertions.assertEquals(new Dollar(10), product);
+        assertEquals(new Dollar(10), product);
         product = five.times(3);
-        Assertions.assertEquals(new Dollar(15), product);
+        assertEquals(new Dollar(15), product);
     }
 
     @Test
     void testEquality() {
-        Assertions.assertEquals(new Dollar(5), new Dollar(5));
-        Assertions.assertNotEquals(new Dollar(5), new Dollar(8));
+        assertEquals(new Dollar(5), new Dollar(5));
+        assertNotEquals(new Dollar(5), new Dollar(8));
+    }
+
+    @Test
+    void testMultiplicationFranc() {
+        Franc five = new Franc(5);
+        Franc product = five.times(2);
+        assertEquals(new Franc(10), product);
+        product = five.times(3);
+        assertEquals(new Franc(15), product);
+    }
+
+    @Test
+    void testEqualityFranc() {
+        assertEquals(new Franc(5), new Franc(5));
+        assertNotEquals(new Franc(5), new Franc(8));
     }
 
 }