Just a commit

java/robot-name/src/test/java/RobotTest.java

@@ -0,0 +1,35 @@
+import org.junit.Test;
+
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.core.Is.is;
+import static org.hamcrest.core.IsNot.not;
+import static org.junit.Assert.assertThat;
+
+public class RobotTest {
+
+    private static final String EXPECTED_ROBOT_NAME_PATTERN = "[A-Z]{2}\\d{3}";
+    private final Robot robot = new Robot();
+
+    @Test
+    public void hasName() {
+        assertIsValidName(robot.getName());
+    }
+
+    @Test
+    public void differentRobotsHaveDifferentNames() {
+        assertThat(robot.getName(), not(equalTo(new Robot().getName())));
+    }
+
+    @Test
+    public void resetName() {
+        final String name = robot.getName();
+        robot.reset();
+        final String name2 = robot.getName();
+        assertThat(name, not(equalTo(name2)));
+        assertIsValidName(name2);
+    }
+
+    private static void assertIsValidName(String name) {
+        assertThat(name.matches(EXPECTED_ROBOT_NAME_PATTERN), is(true));
+    }
+}