first requirement: two dimensional map of Mars

src/main/java/cat/hack3/codingtests/marsrover/MarsMap.java

@@ -0,0 +1,6 @@
+package cat.hack3.codingtests.marsrover;
+
+public class MarsMap {
+    public MarsMap(int width, int height) {
+    }
+}

src/test/java/cat/hack3/codingtests/marsrover/MarsRoverTest.java

@@ -1,4 +1,13 @@
 package cat.hack3.codingtests.marsrover;
 
+import org.testng.annotations.Test;
+
 public class MarsRoverTest {
+
+    @Test
+    public void havingTwoDimensionalMapOfMars() {
+        int width = 10;
+        int height = 10;
+        new MarsMap(width, height);
+    }
 }