@@ -0,0 +1,1241 @@
+package task2_3;%0A%0Aimport org.junit.Test;%0A%0Aimport static org.hamcrest.core.Is.is;%0Aimport static org.junit.Assert.*;%0A%0A%0Apublic class CalculatorTest %7B%0A%0A    @Test%0A    public void whenPlus() throws Exception %7B%0A        final Calculator calculator = new Calculator();%0A        double checked = 5d;%0A%0A        calculator.plus(3, 2);%0A%0A        final double result = calculator.result;%0A        assertThat(result, is(checked));%0A    %7D%0A%0A    @Test%0A    public void whenMinus() throws Exception %7B%0A        final Calculator calculator = new Calculator();%0A        double checked = 1d;%0A%0A        calculator.minus(3, 2);%0A        final double result = calculator.result;%0A%0A        assertThat(result, is(checked));%0A    %7D%0A%0A    @Test%0A    public void whenDivide() throws Exception %7B%0A        final Calculator calculator = new Calculator();%0A        double checked = 3d;%0A%0A        calculator.devide(6, 2);%0A        final double result = calculator.result;%0A%0A        assertThat(result, is(3d));%0A    %7D%0A%0A    @Test%0A    public void whenMultiply() throws Exception %7B%0A        final Calculator calculator = new Calculator();%0A        double checked = 6d;%0A%0A        calculator.multiply(3, 2);%0A        final double result = calculator.result;%0A%0A        assertThat(result, is(checked));%0A    %7D%0A%7D

add CalculatorTest.java