Add missing canonical test case to queen-attack

exercises/queen-attack/src/test/java/QueenAttackCalculatorTest.java

@@ -3,6 +3,7 @@ import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
 
+import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 
 public final class QueenAttackCalculatorTest {
@@ -69,6 +70,14 @@ public final class QueenAttackCalculatorTest {
         new QueenAttackCalculator(new BoardCoordinate(2, 2), new BoardCoordinate(2, 2));
     }
 
+    @Test
+    public void testQueensThatDoNotShareRankFileOrDiagonalCannotAttack() {
+        final QueenAttackCalculator calculator
+                = new QueenAttackCalculator(new BoardCoordinate(2, 4), new BoardCoordinate(6, 6));
+
+        assertFalse(calculator.canQueensAttackOneAnother());
+    }
+
     @Ignore
     @Test
     public void testQueensCanAttackOnTheSameRank() {