Add oving 5

src/test/java/oving5/twitter/UserNameComparatorTest.java

@@ -0,0 +1,32 @@
+package oving5.twitter;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+public class UserNameComparatorTest {
+
+	private TwitterAccount aaron1;
+	private TwitterAccount aaron2;
+	private TwitterAccount ben;
+	private UserNameComparator comparator;
+
+	@BeforeEach
+	public void setUp() {
+		aaron1 = new TwitterAccount("Aaron");
+		aaron2 = new TwitterAccount("Aaron");
+		ben = new TwitterAccount("Ben");
+		comparator = new UserNameComparator();
+	}
+
+	@Test
+	@DisplayName("Check comparison based on username")
+	public void testCompare() {
+		assertTrue(comparator.compare(aaron1, ben) < 0, "Aaron should be sorted before Ben");
+		assertTrue(comparator.compare(ben, aaron1) > 0, "Ben should be sorted after Aaron");
+		assertEquals(comparator.compare(aaron1, aaron2), 0,
+				"Two people with the same name should be equal");
+	}
+}