initial commit

test/cards/CardTest.java

@@ -0,0 +1,25 @@
+package cards;
+
+import org.junit.Test;
+
+import static cards.Rank.THREE;
+import static cards.Rank.TWO;
+import static cards.Suit.HEARTS;
+import static cards.Suit.SPADES;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+public class CardTest {
+    private static Card c(Rank r, Suit s) {
+        return new Card(r, s);
+    }
+
+    @Test
+    public void compareToTest() {
+        assertEquals(0, c(TWO, HEARTS).compareTo(c(TWO, HEARTS)));
+        assertTrue(c(TWO, HEARTS).compareTo(c(TWO, SPADES)) < 0);
+        assertTrue(c(TWO, SPADES).compareTo(c(TWO, HEARTS)) > 0);
+        assertTrue(c(TWO, SPADES).compareTo(c(THREE, HEARTS)) < 0);
+        assertTrue(c(THREE, HEARTS).compareTo(c(TWO, SPADES)) > 0);
+    }
+}