@@ -0,0 +1,486 @@
+package ru.alexandr;%0A%0Aimport org.junit.Test;%0Aimport static org.hamcrest.core.Is.is;%0Aimport static org.junit.Assert.assertThat;%0A%0A%09/**...%0A%09* Turn Test.%0A%09* @author Alexander Golubev.%0A%09* since 07.12.2016.%0A%09*/%0Apublic class TurnTest %7B%0A%09/**.%0A%09* Test turn.%0A%09*/%0A%09@Test%0A%09public void whenArrayBackThenTurnArray() %7B%0A%09%09Turn turn = new Turn();%0A%09%09final int%5B%5D srcArray = %7B1, 2, 3%7D;%0A%09%09final int%5B%5D expect = %7B3, 2, 1%7D;%0A%09%09int%5B%5D resultArray = turn.back(srcArray);%0A%09%09assertThat(resultArray, is(expect));%0A%09%7D%0A%7D

add TurnTest.java