@@ -0,0 +1,595 @@
+package ru.parc;%0A%0Aimport org.junit.Test;%0Aimport static org.hamcrest.core.Is.is;%0Aimport static org.junit.Assert.*;%0A%0A%0Apublic class CalculateTest %7B%0A    @Test%0A    public void whenSetStopInEchoThenReturnThreeStops() %7B%0A       %0A        Calculate calc = new Calculate();%0A        String result = calc.echo(%22stop%22);%0A        assertThat(result, is(%22stop stop stop%22));%0A    %7D%0A    %0A     @Test%0A    public void whenSetNullInEchoThenReturnTowSpaces() %7B%0A       %0A        Calculate calc = new Calculate();%0A        String result = calc.echo(%22stop%22);%0A        assertThat(result, is(%22  %22));%0A    %7D%0A    %0A        %0A    %7D%0A   

add calculatetest.java