@@ -0,0 +1,343 @@
+package ru.ematveev.stringsub;%0A%0A%0A%0Aimport org.junit.Test;%0Aimport static org.hamcrest.core.Is.is;%0Aimport static org.junit.Assert.*;%0Aimport static org.hamcrest.number.IsCloseTo.closeTo;%0A%0A%0Apublic class StringSubTest%7B%0A%09@Test%0A%09public void containsTest()%7B%0A%09%09StringSub d = new StringSub();%0A%09%09assertThat(d.contains(%22%D0%A1%D0%B2%D0%B5%D1%82%D0%BB%D0%B0%D0%BD%D0%B0%22, %22%D0%B2%D0%B5%D1%82%D0%BB%D0%B0%22), is(true));%0A%09%7D%0A%7D

add StringSubTest.java