@@ -0,0 +1,495 @@
+package ru.alexandr;%0A%0Aimport org.junit.Test;%0Aimport static org.hamcrest.number.IsCloseTo.closeTo;%0A/**.%0A * Triangle Test.%0A * @author Alexander Golubev.%0A * since 05.12.2016.%0A */%0A public class TriangleTest %7B%0A%09/**.%0A%09* Triangle test.%0A%09*/%0A%09@Test%0A    public void whenAreaThenRithArea() %7B%0A%09%09Point a = new Point(1, 2);%0A%09%09Point b = new Point(2, 2);%0A%09%09Point c = new Point(2, 1);%0A%09%09Triangle triangle = new Triangle(a, b, c);%0A%09%09double result = triangle.area();%0A%09%09assertThat(result, closeTo(0, 0.5));%0A    %7D%0A %7D

add TriangleTest.java